diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index b74e25a7d09ceedc61a8ea105597bcfa32e18009..36baa25d2108648c464b68e33714edc153e04ade 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -57,7 +57,9 @@ add_library(${PROJECT_NAME}::${LIBNAME} ALIAS ${LIBNAME})
target_include_directories(${LIBNAME}
PUBLIC
$<INSTALL_INTERFACE:include>
+ $<INSTALL_INTERFACE:include/hcana>
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+ $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}> # for hc_compiledata.h
)
@@ -91,10 +93,12 @@ install(TARGETS ${LIBNAME}
install(FILES ${allheaders} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
#install(DIRECTORY nlohmann DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+install(DIRECTORY include/spdlog DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/hcana)
+
#----------------------------------------------------------------------------
# libHallCDict
build_root_dictionary(${LIBNAME} ${headers}
- INCLUDEDIRS -I${CMAKE_CURRENT_SOURCE_DIR} -I${Podd_DIR}/../../include
+ INCLUDEDIRS -I${CMAKE_CURRENT_SOURCE_DIR} -I${CMAKE_CURRENT_SOURCE_DIR}/include -I${Podd_DIR}/../../include
TARGETS ${LIBNAME}
LINKDEF include/HallC_LinkDef.h
)
diff --git a/src/Logger.h b/src/Logger.h
new file mode 100644
index 0000000000000000000000000000000000000000..938e1248324d89e00040b72336bcfa74fe77b8ef
--- /dev/null
+++ b/src/Logger.h
@@ -0,0 +1,27 @@
+#ifndef hcana_Logger_hh
+#define hcana_Logger_hh
+
+#include "spdlog/spdlog.h"
+#include "spdlog/sinks/stdout_color_sinks.h" //support for stdout logging
+#include "spdlog/sinks/basic_file_sink.h" // support for basic file logging
+
+namespace hcana {
+
+ template <typename Base>
+ class ConfigLogging : public Base {
+ protected:
+ std::shared_ptr<spdlog::logger> _logger;
+ public:
+ template <class... Args>
+ ConfigLogging(Args&&... args) : Base(std::forward<Args>(args)...) {
+ _logger = spdlog::get("config");
+ if(!_logger) {
+ _logger = spdlog::stdout_color_mt("config");
+ }
+ }
+
+ };
+}
+
+
+#endif
diff --git a/src/THcConfigEvtHandler.cxx b/src/THcConfigEvtHandler.cxx
index a6d13335d2af741cb70ae6af29ca730278a7e856..085dc3b4b5189b4fcb74e4d87b78f3fcefba1f5b 100644
--- a/src/THcConfigEvtHandler.cxx
+++ b/src/THcConfigEvtHandler.cxx
@@ -31,12 +31,20 @@
#include <cstdlib>
#include <iostream>
#include <iomanip>
+#include "spdlog/spdlog.h"
+#include "spdlog/sinks/stdout_color_sinks.h" //support for stdout logging
+#include "spdlog/sinks/basic_file_sink.h" // support for basic file logging
using namespace std;
THcConfigEvtHandler::THcConfigEvtHandler(const char *name, const char* description)
: THaEvtTypeHandler(name,description)
{
+ //Create and return a shared_ptr to a multithreaded console logger.
+ _logger = spdlog::get("config");
+ if(!_logger) {
+ _logger = spdlog::stdout_color_mt("config");
+ }
}
THcConfigEvtHandler::~THcConfigEvtHandler()
@@ -353,7 +361,7 @@ void THcConfigEvtHandler::AddEventType(Int_t evtype)
THaAnalysisObject::EStatus THcConfigEvtHandler::Init(const TDatime& date)
{
- cout << "Howdy ! We are initializing THcConfigEvtHandler !! name = "<<fName<<endl;
+ _logger->info("Howdy ! We are initializing THcConfigEvtHandler !! name = {}",fName.Data());
if(eventtypes.size()==0) {
eventtypes.push_back(125); // what events to look for
diff --git a/src/THcConfigEvtHandler.h b/src/THcConfigEvtHandler.h
index d72c7a1dadc551dd07100689fa4579a9f333a9fb..c366acb02a6cbdce479490b07dc2405238fe570d 100644
--- a/src/THcConfigEvtHandler.h
+++ b/src/THcConfigEvtHandler.h
@@ -15,7 +15,13 @@
#include <vector>
#include <map>
+#include "spdlog/spdlog.h"
+#include "spdlog/sinks/stdout_color_sinks.h" //support for stdout logging
+#include "spdlog/sinks/basic_file_sink.h" // support for basic file logging
+
class THcConfigEvtHandler : public THaEvtTypeHandler {
+private:
+ std::shared_ptr<spdlog::logger> _logger;
public:
diff --git a/src/THcDC.cxx b/src/THcDC.cxx
index 67a9039831a11de00efb5d40ac25fcd218186bf9..924c38d830da6ec15b1327cdf4f0dc4916ae656d 100644
--- a/src/THcDC.cxx
+++ b/src/THcDC.cxx
@@ -33,13 +33,18 @@ the number of parameters per plane.
#include <cstdlib>
#include <iostream>
+#include "spdlog/spdlog.h"
+#include "spdlog/sinks/stdout_color_sinks.h" //support for stdout logging
+#include "spdlog/sinks/basic_file_sink.h" // support for basic file logging
+
+
using namespace std;
//_____________________________________________________________________________
THcDC::THcDC(
const char* name, const char* description,
THaApparatus* apparatus ) :
- THaTrackingDetector(name,description,apparatus)
+ hcana::ConfigLogging<THaTrackingDetector>(name,description,apparatus)
{
// Constructor
@@ -86,6 +91,12 @@ THcDC::THcDC(
//The version defaults to 0 (old HMS style). 1 is new HMS style and 2 is SHMS style.
fVersion = 0;
+
+ //Create and return a shared_ptr to a multithreaded console logger.
+ //_logger = spdlog::get("config");
+ //if(!_logger) {
+ // _logger = spdlog::stdout_color_mt("config");
+ //}
}
//_____________________________________________________________________________
@@ -131,14 +142,18 @@ void THcDC::Setup(const char* name, const char* description)
fHMSStyleChambers = 0;
}
-
- cout << "Plane Name List: " << planenamelist << endl;
- cout << "Drift Chambers: " << fNPlanes << " planes in " << fNChambers << " chambers" << endl;
+ _logger->info("Plane Name List: {}", planenamelist);
+ _logger->info("Drift Chambers: {} planes in {} chambers", fNPlanes, fNChambers);
+ //cout << "Plane Name List: " << planenamelist << endl;
+ //cout << "Drift Chambers: " << fNPlanes << " planes in " << fNChambers << " chambers" << endl;
vector<string> plane_names = vsplit(planenamelist);
if(plane_names.size() != (UInt_t) fNPlanes) {
- cout << "ERROR: Number of planes " << fNPlanes << " doesn't agree with number of plane names " << plane_names.size() << endl;
+ //cout << "ERROR: Number of planes " << fNPlanes << " doesn't agree with number of plane names " << plane_names.size() << endl;
+ _logger->error("ERROR: Number of planes {} doesn't agree with number of plane names {}",
+ fNPlanes, plane_names.size());
+
// Should quit. Is there an official way to quit?
}
fPlaneNames = new char* [fNPlanes];
@@ -177,7 +192,8 @@ void THcDC::Setup(const char* name, const char* description)
// Should construct a better chamber name
THcDriftChamber* newchamber = new THcDriftChamber(desc1, desc, i+1, this);
fChambers.push_back(newchamber);
- cout << "Created Drift Chamber " << i+1 << ", " << desc1 << endl;
+ //cout << "Created Drift Chamber " << i+1 << ", " << desc1 << endl;
+ _logger->info("Created Drift Chamber {}, {}" , i+1 , desc1);
newchamber->SetHMSStyleFlag(fHMSStyleChambers); // Tell the chamber its style
}
delete [] desc;
@@ -186,7 +202,7 @@ void THcDC::Setup(const char* name, const char* description)
//_____________________________________________________________________________
THcDC::THcDC( ) :
- THaTrackingDetector()
+ hcana::ConfigLogging<THaTrackingDetector>()
{
// Constructor
}
diff --git a/src/THcDC.h b/src/THcDC.h
index 80918fd04db076d448d23d98310e115080a13e55..7cc5269cd067dba5268b0a03e551284d1d12ccfa 100644
--- a/src/THcDC.h
+++ b/src/THcDC.h
@@ -15,12 +15,20 @@
#include "THcDriftChamber.h"
#include "TMath.h"
+#include "spdlog/spdlog.h"
+#include "spdlog/sinks/stdout_color_sinks.h" //support for stdout logging
+#include "spdlog/sinks/basic_file_sink.h" // support for basic file logging
+
+#include "Logger.h"
+
#define NUM_FPRAY 4
//class THaScCalib;
class TClonesArray;
-class THcDC : public THaTrackingDetector, public THcHitList {
+class THcDC : public hcana::ConfigLogging<THaTrackingDetector>, public THcHitList {
+//private:
+// std::shared_ptr<spdlog::logger> _logger;
public:
THcDC( const char* name, const char* description = "",
diff --git a/src/THcHallCSpectrometer.cxx b/src/THcHallCSpectrometer.cxx
index a9070e25f3e504baed2dd77fb690679b206beae5..571a31a1176eba3916d1bac5c7602845ad347d0c 100644
--- a/src/THcHallCSpectrometer.cxx
+++ b/src/THcHallCSpectrometer.cxx
@@ -117,6 +117,11 @@ THcHallCSpectrometer::THcHallCSpectrometer( const char* name, const char* descri
SetTrSorting(kTRUE);
eventtypes.clear();
+
+ _logger = spdlog::get("config");
+ if(!_logger) {
+ _logger = spdlog::stdout_color_mt("config");
+ }
}
//_____________________________________________________________________________
@@ -195,7 +200,7 @@ Int_t THcHallCSpectrometer::ReadDatabase( const TDatime& date )
static const char* const here = "THcHallCSpectrometer::ReadDatabase";
#ifdef WITH_DEBUG
- cout << "In THcHallCSpectrometer::ReadDatabase()" << endl;
+ //cout << "In THcHallCSpectrometer::ReadDatabase()" << endl;
#endif
const char* detector_name = "hod";
@@ -301,7 +306,7 @@ Int_t THcHallCSpectrometer::ReadDatabase( const TDatime& date )
fMispointing_y = 0.1*(-0.6);
gHcParms->Define("pmispointing_y","SHMS Y-Mispointing", fMispointing_y);
- cout << prefix[0] << " From Formula Mispointing_y = " << fMispointing_y << endl;
+ //cout << prefix[0] << " From Formula Mispointing_y = " << fMispointing_y << endl;
}
}
@@ -320,7 +325,7 @@ Int_t THcHallCSpectrometer::ReadDatabase( const TDatime& date )
else {fMispointing_x = 0.1*(2.37-0.086*50+0.0012*50.*50.);}
gHcParms->Define("hmispointing_x","HMS X-Mispointing", fMispointing_x);
- cout << prefix[0] << " From Formula Mispointing_x = " << fMispointing_x << endl;
+ //cout << prefix[0] << " From Formula Mispointing_x = " << fMispointing_x << endl;
}
@@ -329,14 +334,14 @@ Int_t THcHallCSpectrometer::ReadDatabase( const TDatime& date )
fMispointing_x = 0.1*(-1.26);
gHcParms->Define("pmispointing_x","SHMS X-Mispointing", fMispointing_x);
- cout << prefix[0] << " From Formula Mispointing_x = " << fMispointing_x << endl;
+ //cout << prefix[0] << " From Formula Mispointing_x = " << fMispointing_x << endl;
}
}
else {
- cout << prefix[0] << " From Parameter Set Mispointing_x = " << fMispointing_x << endl;
+ //cout << prefix[0] << " From Parameter Set Mispointing_x = " << fMispointing_x << endl;
}
//
@@ -344,18 +349,18 @@ Int_t THcHallCSpectrometer::ReadDatabase( const TDatime& date )
EnforcePruneLimits();
#ifdef WITH_DEBUG
- cout << "\n\n\nhodo planes = " << fNPlanes << endl;
- cout << "sel using scin = " << fSelUsingScin << endl;
- cout << "fPruneXp = " << fPruneXp << endl;
- cout << "fPruneYp = " << fPruneYp << endl;
- cout << "fPruneYtar = " << fPruneYtar << endl;
- cout << "fPruneDelta = " << fPruneDelta << endl;
- cout << "fPruneBeta = " << fPruneBeta << endl;
- cout << "fPruneDf = " << fPruneDf << endl;
- cout << "fPruneChiBeta = " << fPruneChiBeta << endl;
- cout << "fPruneFpTime = " << fPruneFpTime << endl;
- cout << "fPruneNPMT = " << fPruneNPMT << endl;
- cout << "sel using prune = " << fSelUsingPrune << endl;
+ //cout << "\n\n\nhodo planes = " << fNPlanes << endl;
+ //cout << "sel using scin = " << fSelUsingScin << endl;
+ //cout << "fPruneXp = " << fPruneXp << endl;
+ //cout << "fPruneYp = " << fPruneYp << endl;
+ //cout << "fPruneYtar = " << fPruneYtar << endl;
+ //cout << "fPruneDelta = " << fPruneDelta << endl;
+ //cout << "fPruneBeta = " << fPruneBeta << endl;
+ //cout << "fPruneDf = " << fPruneDf << endl;
+ //cout << "fPruneChiBeta = " << fPruneChiBeta << endl;
+ //cout << "fPruneFpTime = " << fPruneFpTime << endl;
+ //cout << "fPruneNPMT = " << fPruneNPMT << endl;
+ //cout << "sel using prune = " << fSelUsingPrune << endl;
#endif
cout << "fPartMass = " << fPartMass << endl;
cout << "fPcentral = " << fPcentral << " " <<fPCentralOffset << endl;
diff --git a/src/THcHallCSpectrometer.h b/src/THcHallCSpectrometer.h
index f92f81b7c14398e56a6da82a9740bd2e0aeab965..8074f9c5c2752d96250fb82f9500bf786748f707 100644
--- a/src/THcHallCSpectrometer.h
+++ b/src/THcHallCSpectrometer.h
@@ -30,10 +30,15 @@
#include <iostream>
#include <fstream>
+#include "spdlog/spdlog.h"
+#include "spdlog/sinks/stdout_color_sinks.h" //support for stdout logging
+#include "spdlog/sinks/basic_file_sink.h" // support for basic file logging
//class THaScintillator;
class THcHallCSpectrometer : public THaSpectrometer {
+private:
+ std::shared_ptr<spdlog::logger> _logger;
public:
THcHallCSpectrometer( const char* name, const char* description );
diff --git a/src/THcHodoscope.cxx b/src/THcHodoscope.cxx
index b9abbbe224268e7e062bdfb4b4b866e0ab44714d..15d70e9109f048708b767f00c652ef453c6b9a14 100644
--- a/src/THcHodoscope.cxx
+++ b/src/THcHodoscope.cxx
@@ -49,7 +49,7 @@ using std::vector;
//_____________________________________________________________________________
THcHodoscope::THcHodoscope( const char* name, const char* description,
THaApparatus* apparatus ) :
- THaNonTrackingDetector(name,description,apparatus)
+ hcana::ConfigLogging<THaNonTrackingDetector>(name,description,apparatus)
{
// Constructor
@@ -62,7 +62,7 @@ THcHodoscope::THcHodoscope( const char* name, const char* description,
//_____________________________________________________________________________
THcHodoscope::THcHodoscope( ) :
- THaNonTrackingDetector()
+ hcana::ConfigLogging<THaNonTrackingDetector>()
{
// Constructor
}
@@ -107,7 +107,8 @@ void THcHodoscope::Setup(const char* name, const char* description)
fADC_RefTimeCut = 0;
gHcParms->LoadParmValues((DBRequest*)&listextra,prefix);
- cout << "Plane Name List : " << planenamelist << endl;
+ _logger->info("Plane Name List : {}" , planenamelist);
+ //cout << "Plane Name List : " << planenamelist << endl;
vector<string> plane_names = vsplit(planenamelist);
// Plane names
@@ -129,7 +130,7 @@ void THcHodoscope::Setup(const char* name, const char* description)
strcat(desc, " Plane ");
strcat(desc, fPlaneNames[i]);
fPlanes[i] = new THcScintillatorPlane(fPlaneNames[i], desc, i+1, this); // Number planes starting from zero!!
- cout << "Created Scintillator Plane " << fPlaneNames[i] << ", " << desc << endl;
+ //cout << "Created Scintillator Plane " << fPlaneNames[i] << ", " << desc << endl;
}
// Save the nominal particle mass
diff --git a/src/THcHodoscope.h b/src/THcHodoscope.h
index 217644c71ccc607f92b21efaba53758d04300f76..10e9861240827b41e5306d1827272dd3b587bf4f 100644
--- a/src/THcHodoscope.h
+++ b/src/THcHodoscope.h
@@ -31,10 +31,11 @@
#include <iostream>
#include <fstream>
+#include "Logger.h"
class THaScCalib;
-class THcHodoscope : public THaNonTrackingDetector, public THcHitList {
+class THcHodoscope : public hcana::ConfigLogging<THaNonTrackingDetector>, public THcHitList {
public:
THcHodoscope( const char* name, const char* description = "",
diff --git a/src/THcScalerEvtHandler.cxx b/src/THcScalerEvtHandler.cxx
index c739f5eff3a2a346c9fbda2dfe1308ae971c90a1..8a741e878b44dbf21d0815565a8b1c8c50b17e1b 100644
--- a/src/THcScalerEvtHandler.cxx
+++ b/src/THcScalerEvtHandler.cxx
@@ -589,8 +589,8 @@ THaAnalysisObject::EStatus THcScalerEvtHandler::Init(const TDatime& date)
fDelayedEvents.clear();
- cout << "Howdy ! We are initializing THcScalerEvtHandler !! name = "
- << fName << endl;
+ //cout << "Howdy ! We are initializing THcScalerEvtHandler !! name = "
+ // << fName << endl;
if(eventtypes.size()==0) {
eventtypes.push_back(0); // Default Event Type
diff --git a/src/THcShowerPlane.cxx b/src/THcShowerPlane.cxx
index f82ae9b7016458440cf8ad96d4b95e184d71384a..d4f723676cf61ec4349034f68f1b84f9015e49ba 100644
--- a/src/THcShowerPlane.cxx
+++ b/src/THcShowerPlane.cxx
@@ -358,9 +358,9 @@ Int_t THcShowerPlane::DefineVariables( EMode mode )
gHcParms->Define(Form("%sstat_hitsum%d", fParent->GetPrefix(), fLayerNum),
Form("Number of hits in calo. layer %d", fLayerNum), fTotStatNumHit);
- cout << "THcShowerPlane::DefineVariables: registered counters "
- << Form("%sstat_trksum%d",fParent->GetPrefix(),fLayerNum) << " and "
- << Form("%sstat_hitsum%d",fParent->GetPrefix(),fLayerNum) << endl;
+ //cout << "THcShowerPlane::DefineVariables: registered counters "
+ // << Form("%sstat_trksum%d",fParent->GetPrefix(),fLayerNum) << " and "
+ // << Form("%sstat_hitsum%d",fParent->GetPrefix(),fLayerNum) << endl;
// getchar();
RVarDef vars[] = {
diff --git a/src/THcTimeSyncEvtHandler.cxx b/src/THcTimeSyncEvtHandler.cxx
index 01757aeecc6141b706953c7cf267030750328223..0f81bbe3acee726378f30a28307d1e25910fb35d 100644
--- a/src/THcTimeSyncEvtHandler.cxx
+++ b/src/THcTimeSyncEvtHandler.cxx
@@ -500,7 +500,7 @@ void THcTimeSyncEvtHandler::AddExpectedOffset(Int_t roc, Int_t offset) {
THaAnalysisObject::EStatus THcTimeSyncEvtHandler::Init(const TDatime& date)
{
- cout << "Howdy ! We are initializing THcTimeSyncEvtHandler !! name = "<<fName<<endl;
+ //cout << "Howdy ! We are initializing THcTimeSyncEvtHandler !! name = "<<fName<<endl;
if(eventtypes.size()==0) {
eventtypes.push_back(1); // If no event types specified,
diff --git a/src/include/spdlog/async.h b/src/include/spdlog/async.h
new file mode 100644
index 0000000000000000000000000000000000000000..f70c4a3e7b285f02dc7151957bf67f96d8c39112
--- /dev/null
+++ b/src/include/spdlog/async.h
@@ -0,0 +1,87 @@
+
+//
+// Copyright(c) 2018 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+//
+// Async logging using global thread pool
+// All loggers created here share same global thread pool.
+// Each log message is pushed to a queue along withe a shared pointer to the
+// logger.
+// If a logger deleted while having pending messages in the queue, it's actual
+// destruction will defer
+// until all its messages are processed by the thread pool.
+// This is because each message in the queue holds a shared_ptr to the
+// originating logger.
+
+#include "spdlog/async_logger.h"
+#include "spdlog/details/registry.h"
+#include "spdlog/details/thread_pool.h"
+
+#include <memory>
+#include <mutex>
+
+namespace spdlog {
+
+namespace details {
+static const size_t default_async_q_size = 8192;
+}
+
+// async logger factory - creates async loggers backed with thread pool.
+// if a global thread pool doesn't already exist, create it with default queue
+// size of 8192 items and single thread.
+template<async_overflow_policy OverflowPolicy = async_overflow_policy::block>
+struct async_factory_impl
+{
+ template<typename Sink, typename... SinkArgs>
+ static std::shared_ptr<async_logger> create(const std::string &logger_name, SinkArgs &&... args)
+ {
+ auto ®istry_inst = details::registry::instance();
+
+ // create global thread pool if not already exists..
+ std::lock_guard<std::recursive_mutex>(registry_inst.tp_mutex());
+ auto tp = registry_inst.get_tp();
+ if (tp == nullptr)
+ {
+ tp = std::make_shared<details::thread_pool>(details::default_async_q_size, 1);
+ registry_inst.set_tp(tp);
+ }
+
+ auto sink = std::make_shared<Sink>(std::forward<SinkArgs>(args)...);
+ auto new_logger = std::make_shared<async_logger>(logger_name, std::move(sink), std::move(tp), OverflowPolicy);
+ registry_inst.register_and_init(new_logger);
+ return new_logger;
+ }
+};
+
+using async_factory = async_factory_impl<async_overflow_policy::block>;
+using async_factory_nonblock = async_factory_impl<async_overflow_policy::overrun_oldest>;
+
+template<typename Sink, typename... SinkArgs>
+inline std::shared_ptr<spdlog::logger> create_async(const std::string &logger_name, SinkArgs &&... sink_args)
+{
+ return async_factory::create<Sink>(logger_name, std::forward<SinkArgs>(sink_args)...);
+}
+
+template<typename Sink, typename... SinkArgs>
+inline std::shared_ptr<spdlog::logger> create_async_nb(const std::string &logger_name, SinkArgs &&... sink_args)
+{
+ return async_factory_nonblock::create<Sink>(logger_name, std::forward<SinkArgs>(sink_args)...);
+}
+
+// set global thread pool.
+inline void init_thread_pool(size_t q_size, size_t thread_count)
+{
+ auto tp = std::make_shared<details::thread_pool>(q_size, thread_count);
+ details::registry::instance().set_tp(std::move(tp));
+}
+
+// get the global thread pool.
+inline std::shared_ptr<spdlog::details::thread_pool> thread_pool()
+{
+ return details::registry::instance().get_tp();
+}
+} // namespace spdlog
diff --git a/src/include/spdlog/async_logger.h b/src/include/spdlog/async_logger.h
new file mode 100644
index 0000000000000000000000000000000000000000..2d58f98bb51ba9307ab23034a7c4b4020b48734e
--- /dev/null
+++ b/src/include/spdlog/async_logger.h
@@ -0,0 +1,71 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+// Very fast asynchronous logger (millions of logs per second on an average
+// desktop)
+// Uses pre allocated lockfree queue for maximum throughput even under large
+// number of threads.
+// Creates a single back thread to pop messages from the queue and log them.
+//
+// Upon each log write the logger:
+// 1. Checks if its log level is enough to log the message
+// 2. Push a new copy of the message to a queue (or block the caller until
+// space is available in the queue)
+// 3. will throw spdlog_ex upon log exceptions
+// Upon destruction, logs all remaining messages in the queue before
+// destructing..
+
+#include "spdlog/common.h"
+#include "spdlog/logger.h"
+
+#include <chrono>
+#include <memory>
+#include <string>
+
+namespace spdlog {
+
+// Async overflow policy - block by default.
+enum class async_overflow_policy
+{
+ block, // Block until message can be enqueued
+ overrun_oldest // Discard oldest message in the queue if full when trying to
+ // add new item.
+};
+
+namespace details {
+class thread_pool;
+}
+
+class async_logger SPDLOG_FINAL : public std::enable_shared_from_this<async_logger>, public logger
+{
+ friend class details::thread_pool;
+
+public:
+ template<typename It>
+ async_logger(std::string logger_name, const It &begin, const It &end, std::weak_ptr<details::thread_pool> tp,
+ async_overflow_policy overflow_policy = async_overflow_policy::block);
+
+ async_logger(std::string logger_name, sinks_init_list sinks, std::weak_ptr<details::thread_pool> tp,
+ async_overflow_policy overflow_policy = async_overflow_policy::block);
+
+ async_logger(std::string logger_name, sink_ptr single_sink, std::weak_ptr<details::thread_pool> tp,
+ async_overflow_policy overflow_policy = async_overflow_policy::block);
+
+protected:
+ void sink_it_(details::log_msg &msg) override;
+ void flush_() override;
+
+ void backend_log_(details::log_msg &incoming_log_msg);
+ void backend_flush_();
+
+private:
+ std::weak_ptr<details::thread_pool> thread_pool_;
+ async_overflow_policy overflow_policy_;
+};
+} // namespace spdlog
+
+#include "details/async_logger_impl.h"
diff --git a/src/include/spdlog/common.h b/src/include/spdlog/common.h
new file mode 100644
index 0000000000000000000000000000000000000000..b8d45175db91e2ca27456419890ed799b9f01a51
--- /dev/null
+++ b/src/include/spdlog/common.h
@@ -0,0 +1,183 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "spdlog/tweakme.h"
+
+#include <atomic>
+#include <chrono>
+#include <functional>
+#include <initializer_list>
+#include <memory>
+#include <stdexcept>
+#include <string>
+#include <unordered_map>
+
+#if defined(SPDLOG_WCHAR_FILENAMES) || defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT)
+#include <codecvt>
+#include <locale>
+#endif
+
+#include "spdlog/details/null_mutex.h"
+
+// visual studio upto 2013 does not support noexcept nor constexpr
+#if defined(_MSC_VER) && (_MSC_VER < 1900)
+#define SPDLOG_NOEXCEPT throw()
+#define SPDLOG_CONSTEXPR
+#else
+#define SPDLOG_NOEXCEPT noexcept
+#define SPDLOG_CONSTEXPR constexpr
+#endif
+
+// final keyword support. On by default. See tweakme.h
+#if defined(SPDLOG_NO_FINAL)
+#define SPDLOG_FINAL
+#else
+#define SPDLOG_FINAL final
+#endif
+
+#if defined(__GNUC__) || defined(__clang__)
+#define SPDLOG_DEPRECATED __attribute__((deprecated))
+#elif defined(_MSC_VER)
+#define SPDLOG_DEPRECATED __declspec(deprecated)
+#else
+#define SPDLOG_DEPRECATED
+#endif
+
+#include "spdlog/fmt/fmt.h"
+
+namespace spdlog {
+
+class formatter;
+
+namespace sinks {
+class sink;
+}
+
+using log_clock = std::chrono::system_clock;
+using sink_ptr = std::shared_ptr<sinks::sink>;
+using sinks_init_list = std::initializer_list<sink_ptr>;
+using log_err_handler = std::function<void(const std::string &err_msg)>;
+
+#if defined(SPDLOG_NO_ATOMIC_LEVELS)
+using level_t = details::null_atomic_int;
+#else
+using level_t = std::atomic<int>;
+#endif
+
+// Log level enum
+namespace level {
+enum level_enum
+{
+ trace = 0,
+ debug = 1,
+ info = 2,
+ warn = 3,
+ err = 4,
+ critical = 5,
+ off = 6
+};
+
+#if !defined(SPDLOG_LEVEL_NAMES)
+#define SPDLOG_LEVEL_NAMES \
+ { \
+ "trace", "debug", "info", "warning", "error", "critical", "off" \
+ }
+#endif
+static const char *level_names[] SPDLOG_LEVEL_NAMES;
+
+static const char *short_level_names[]{"T", "D", "I", "W", "E", "C", "O"};
+
+inline const char *to_c_str(spdlog::level::level_enum l)
+{
+ return level_names[l];
+}
+
+inline const char *to_short_c_str(spdlog::level::level_enum l)
+{
+ return short_level_names[l];
+}
+inline spdlog::level::level_enum from_str(const std::string &name)
+{
+ static std::unordered_map<std::string, level_enum> name_to_level = // map string->level
+ {{level_names[0], level::trace}, // trace
+ {level_names[1], level::debug}, // debug
+ {level_names[2], level::info}, // info
+ {level_names[3], level::warn}, // warn
+ {level_names[4], level::err}, // err
+ {level_names[5], level::critical}, // critical
+ {level_names[6], level::off}}; // off
+
+ auto lvl_it = name_to_level.find(name);
+ return lvl_it != name_to_level.end() ? lvl_it->second : level::off;
+}
+
+using level_hasher = std::hash<int>;
+} // namespace level
+
+//
+// Pattern time - specific time getting to use for pattern_formatter.
+// local time by default
+//
+enum class pattern_time_type
+{
+ local, // log localtime
+ utc // log utc
+};
+
+//
+// Log exception
+//
+class spdlog_ex : public std::runtime_error
+{
+public:
+ explicit spdlog_ex(const std::string &msg)
+ : runtime_error(msg)
+ {
+ }
+ spdlog_ex(std::string msg, int last_errno)
+ : runtime_error(std::move(msg))
+ , last_errno_(last_errno)
+ {
+ }
+ const char *what() const SPDLOG_NOEXCEPT override
+ {
+ if (last_errno_)
+ {
+ fmt::memory_buffer buf;
+ std::string msg(runtime_error::what());
+ fmt::format_system_error(buf, last_errno_, msg);
+ return fmt::to_string(buf).c_str();
+ }
+ else
+ {
+ return runtime_error::what();
+ }
+ }
+
+private:
+ int last_errno_{0};
+};
+
+//
+// wchar support for windows file names (SPDLOG_WCHAR_FILENAMES must be defined)
+//
+#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
+using filename_t = std::wstring;
+#else
+using filename_t = std::string;
+#endif
+
+#define SPDLOG_CATCH_AND_HANDLE \
+ catch (const std::exception &ex) \
+ { \
+ err_handler_(ex.what()); \
+ } \
+ catch (...) \
+ { \
+ err_handler_("Unknown exeption in logger"); \
+ }
+} // namespace spdlog
diff --git a/src/include/spdlog/details/async_logger_impl.h b/src/include/spdlog/details/async_logger_impl.h
new file mode 100644
index 0000000000000000000000000000000000000000..a42ade943add4ee9b6dc841f87db6aa3814facde
--- /dev/null
+++ b/src/include/spdlog/details/async_logger_impl.h
@@ -0,0 +1,100 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+// async logger implementation
+// uses a thread pool to perform the actual logging
+
+#include "spdlog/details/thread_pool.h"
+
+#include <chrono>
+#include <memory>
+#include <string>
+
+template<typename It>
+inline spdlog::async_logger::async_logger(
+ std::string logger_name, const It &begin, const It &end, std::weak_ptr<details::thread_pool> tp, async_overflow_policy overflow_policy)
+ : logger(std::move(logger_name), begin, end)
+ , thread_pool_(tp)
+ , overflow_policy_(overflow_policy)
+{
+}
+
+inline spdlog::async_logger::async_logger(
+ std::string logger_name, sinks_init_list sinks_list, std::weak_ptr<details::thread_pool> tp, async_overflow_policy overflow_policy)
+ : async_logger(std::move(logger_name), sinks_list.begin(), sinks_list.end(), tp, overflow_policy)
+{
+}
+
+inline spdlog::async_logger::async_logger(
+ std::string logger_name, sink_ptr single_sink, std::weak_ptr<details::thread_pool> tp, async_overflow_policy overflow_policy)
+ : async_logger(std::move(logger_name), {single_sink}, tp, overflow_policy)
+{
+}
+
+// send the log message to the thread pool
+inline void spdlog::async_logger::sink_it_(details::log_msg &msg)
+{
+#if defined(SPDLOG_ENABLE_MESSAGE_COUNTER)
+ incr_msg_counter_(msg);
+#endif
+ if (auto pool_ptr = thread_pool_.lock())
+ {
+ pool_ptr->post_log(shared_from_this(), std::move(msg), overflow_policy_);
+ }
+ else
+ {
+ throw spdlog_ex("async log: thread pool doens't exist anymore");
+ }
+}
+
+// send flush request to the thread pool
+inline void spdlog::async_logger::flush_()
+{
+ if (auto pool_ptr = thread_pool_.lock())
+ {
+ pool_ptr->post_flush(shared_from_this(), overflow_policy_);
+ }
+ else
+ {
+ throw spdlog_ex("async flush: thread pool doesn't exist anymore");
+ }
+}
+
+//
+// backend functions - called from the thread pool to do the actual job
+//
+inline void spdlog::async_logger::backend_log_(details::log_msg &incoming_log_msg)
+{
+ try
+ {
+ for (auto &s : sinks_)
+ {
+ if (s->should_log(incoming_log_msg.level))
+ {
+ s->log(incoming_log_msg);
+ }
+ }
+ }
+ SPDLOG_CATCH_AND_HANDLE
+
+ if (should_flush_(incoming_log_msg))
+ {
+ backend_flush_();
+ }
+}
+
+inline void spdlog::async_logger::backend_flush_()
+{
+ try
+ {
+ for (auto &sink : sinks_)
+ {
+ sink->flush();
+ }
+ }
+ SPDLOG_CATCH_AND_HANDLE
+}
diff --git a/src/include/spdlog/details/circular_q.h b/src/include/spdlog/details/circular_q.h
new file mode 100644
index 0000000000000000000000000000000000000000..48f9a8fad531992555e55172f4b7555aabb7c6ee
--- /dev/null
+++ b/src/include/spdlog/details/circular_q.h
@@ -0,0 +1,62 @@
+//
+// Copyright(c) 2018 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+// cirucal q view of std::vector.
+#pragma once
+
+namespace spdlog {
+namespace details {
+template<typename T>
+class circular_q
+{
+public:
+ using item_type = T;
+
+ explicit circular_q(size_t max_items)
+ : max_items_(max_items + 1) // one item is reserved as marker for full q
+ , v_(max_items_)
+ {
+ }
+
+ // push back, overrun (oldest) item if no room left
+ void push_back(T &&item)
+ {
+ v_[tail_] = std::move(item);
+ tail_ = (tail_ + 1) % max_items_;
+
+ if (tail_ == head_) // overrun last item if full
+ {
+ head_ = (head_ + 1) % max_items_;
+ }
+ }
+
+ // Pop item from front.
+ // If there are no elements in the container, the behavior is undefined.
+ void pop_front(T &popped_item)
+ {
+ popped_item = std::move(v_[head_]);
+ head_ = (head_ + 1) % max_items_;
+ }
+
+ bool empty()
+ {
+ return tail_ == head_;
+ }
+
+ bool full()
+ {
+ // head is ahead of the tail by 1
+ return ((tail_ + 1) % max_items_) == head_;
+ }
+
+private:
+ size_t max_items_;
+ typename std::vector<T>::size_type head_ = 0;
+ typename std::vector<T>::size_type tail_ = 0;
+
+ std::vector<T> v_;
+};
+} // namespace details
+} // namespace spdlog
\ No newline at end of file
diff --git a/src/include/spdlog/details/console_globals.h b/src/include/spdlog/details/console_globals.h
new file mode 100644
index 0000000000000000000000000000000000000000..52de06a51b7d8e2c1522fe023b443e1417a326ac
--- /dev/null
+++ b/src/include/spdlog/details/console_globals.h
@@ -0,0 +1,61 @@
+#pragma once
+//
+// Copyright(c) 2018 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#include "spdlog/details/null_mutex.h"
+#include "stdio.h"
+#include <mutex>
+
+namespace spdlog {
+namespace details {
+struct console_stdout
+{
+ static FILE *stream()
+ {
+ return stdout;
+ }
+#ifdef _WIN32
+ static HANDLE handle()
+ {
+ return ::GetStdHandle(STD_OUTPUT_HANDLE);
+ }
+#endif
+};
+
+struct console_stderr
+{
+ static FILE *stream()
+ {
+ return stderr;
+ }
+#ifdef _WIN32
+ static HANDLE handle()
+ {
+ return ::GetStdHandle(STD_ERROR_HANDLE);
+ }
+#endif
+};
+
+struct console_mutex
+{
+ using mutex_t = std::mutex;
+ static mutex_t &mutex()
+ {
+ static mutex_t s_mutex;
+ return s_mutex;
+ }
+};
+
+struct console_nullmutex
+{
+ using mutex_t = null_mutex;
+ static mutex_t &mutex()
+ {
+ static mutex_t s_mutex;
+ return s_mutex;
+ }
+};
+} // namespace details
+} // namespace spdlog
diff --git a/src/include/spdlog/details/file_helper.h b/src/include/spdlog/details/file_helper.h
new file mode 100644
index 0000000000000000000000000000000000000000..ef70d5618bc02bf46f18b6b0c0351f81ea559f37
--- /dev/null
+++ b/src/include/spdlog/details/file_helper.h
@@ -0,0 +1,153 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+// Helper class for file sink
+// When failing to open a file, retry several times(5) with small delay between
+// the tries(10 ms)
+// Throw spdlog_ex exception on errors
+
+#include "../details/log_msg.h"
+#include "../details/os.h"
+
+#include <cerrno>
+#include <chrono>
+#include <cstdio>
+#include <string>
+#include <thread>
+#include <tuple>
+
+namespace spdlog {
+namespace details {
+
+class file_helper
+{
+
+public:
+ const int open_tries = 5;
+ const int open_interval = 10;
+
+ explicit file_helper() = default;
+
+ file_helper(const file_helper &) = delete;
+ file_helper &operator=(const file_helper &) = delete;
+
+ ~file_helper()
+ {
+ close();
+ }
+
+ void open(const filename_t &fname, bool truncate = false)
+ {
+ close();
+ auto *mode = truncate ? SPDLOG_FILENAME_T("wb") : SPDLOG_FILENAME_T("ab");
+ _filename = fname;
+ for (int tries = 0; tries < open_tries; ++tries)
+ {
+ if (!os::fopen_s(&fd_, fname, mode))
+ {
+ return;
+ }
+
+ details::os::sleep_for_millis(open_interval);
+ }
+
+ throw spdlog_ex("Failed opening file " + os::filename_to_str(_filename) + " for writing", errno);
+ }
+
+ void reopen(bool truncate)
+ {
+ if (_filename.empty())
+ {
+ throw spdlog_ex("Failed re opening file - was not opened before");
+ }
+ open(_filename, truncate);
+ }
+
+ void flush()
+ {
+ std::fflush(fd_);
+ }
+
+ void close()
+ {
+ if (fd_ != nullptr)
+ {
+ std::fclose(fd_);
+ fd_ = nullptr;
+ }
+ }
+
+ void write(const fmt::memory_buffer &buf)
+ {
+ size_t msg_size = buf.size();
+ auto data = buf.data();
+ if (std::fwrite(data, 1, msg_size, fd_) != msg_size)
+ {
+ throw spdlog_ex("Failed writing to file " + os::filename_to_str(_filename), errno);
+ }
+ }
+
+ size_t size() const
+ {
+ if (fd_ == nullptr)
+ {
+ throw spdlog_ex("Cannot use size() on closed file " + os::filename_to_str(_filename));
+ }
+ return os::filesize(fd_);
+ }
+
+ const filename_t &filename() const
+ {
+ return _filename;
+ }
+
+ static bool file_exists(const filename_t &fname)
+ {
+ return os::file_exists(fname);
+ }
+
+ //
+ // return file path and its extension:
+ //
+ // "mylog.txt" => ("mylog", ".txt")
+ // "mylog" => ("mylog", "")
+ // "mylog." => ("mylog.", "")
+ // "/dir1/dir2/mylog.txt" => ("/dir1/dir2/mylog", ".txt")
+ //
+ // the starting dot in filenames is ignored (hidden files):
+ //
+ // ".mylog" => (".mylog". "")
+ // "my_folder/.mylog" => ("my_folder/.mylog", "")
+ // "my_folder/.mylog.txt" => ("my_folder/.mylog", ".txt")
+ static std::tuple<filename_t, filename_t> split_by_extenstion(const spdlog::filename_t &fname)
+ {
+ auto ext_index = fname.rfind('.');
+
+ // no valid extension found - return whole path and empty string as
+ // extension
+ if (ext_index == filename_t::npos || ext_index == 0 || ext_index == fname.size() - 1)
+ {
+ return std::make_tuple(fname, spdlog::filename_t());
+ }
+
+ // treat casese like "/etc/rc.d/somelogfile or "/abc/.hiddenfile"
+ auto folder_index = fname.rfind(details::os::folder_sep);
+ if (folder_index != fname.npos && folder_index >= ext_index - 1)
+ {
+ return std::make_tuple(fname, spdlog::filename_t());
+ }
+
+ // finally - return a valid base and extension tuple
+ return std::make_tuple(fname.substr(0, ext_index), fname.substr(ext_index));
+ }
+
+private:
+ FILE *fd_{nullptr};
+ filename_t _filename;
+};
+} // namespace details
+} // namespace spdlog
diff --git a/src/include/spdlog/details/fmt_helper.h b/src/include/spdlog/details/fmt_helper.h
new file mode 100644
index 0000000000000000000000000000000000000000..0f67053926fa551ef48bda8440d5c8288a1e5b90
--- /dev/null
+++ b/src/include/spdlog/details/fmt_helper.h
@@ -0,0 +1,130 @@
+//
+// Created by gabi on 6/15/18.
+//
+
+#pragma once
+
+#include "chrono"
+#include "spdlog/fmt/fmt.h"
+
+// Some fmt helpers to efficiently format and pad ints and strings
+namespace spdlog {
+namespace details {
+namespace fmt_helper {
+
+template<size_t Buffer_Size>
+inline void append_str(const std::string &str, fmt::basic_memory_buffer<char, Buffer_Size> &dest)
+{
+ auto *str_ptr = str.data();
+ dest.append(str_ptr, str_ptr + str.size());
+}
+
+template<size_t Buffer_Size>
+inline void append_c_str(const char *c_str, fmt::basic_memory_buffer<char, Buffer_Size> &dest)
+{
+ char ch;
+ while ((ch = *c_str) != '\0')
+ {
+ dest.push_back(ch);
+ ++c_str;
+ }
+}
+
+template<size_t Buffer_Size1, size_t Buffer_Size2>
+inline void append_buf(const fmt::basic_memory_buffer<char, Buffer_Size1> &buf, fmt::basic_memory_buffer<char, Buffer_Size2> &dest)
+{
+ auto *buf_ptr = buf.data();
+ dest.append(buf_ptr, buf_ptr + buf.size());
+}
+
+template<typename T, size_t Buffer_Size>
+inline void append_int(T n, fmt::basic_memory_buffer<char, Buffer_Size> &dest)
+{
+ fmt::format_int i(n);
+ dest.append(i.data(), i.data() + i.size());
+}
+
+template<size_t Buffer_Size>
+inline void pad2(int n, fmt::basic_memory_buffer<char, Buffer_Size> &dest)
+{
+ if (n > 99)
+ {
+ append_int(n, dest);
+ return;
+ }
+ if (n > 9) // 10-99
+ {
+ dest.push_back('0' + static_cast<char>(n / 10));
+ dest.push_back('0' + static_cast<char>(n % 10));
+ return;
+ }
+ if (n >= 0) // 0-9
+ {
+ dest.push_back('0');
+ dest.push_back('0' + static_cast<char>(n));
+ return;
+ }
+ // negatives (unlikely, but just in case, let fmt deal with it)
+ fmt::format_to(dest, "{:02}", n);
+}
+
+template<size_t Buffer_Size>
+inline void pad3(int n, fmt::basic_memory_buffer<char, Buffer_Size> &dest)
+{
+ if (n > 999)
+ {
+ append_int(n, dest);
+ return;
+ }
+
+ if (n > 99) // 100-999
+ {
+ append_int(n / 100, dest);
+ pad2(n % 100, dest);
+ return;
+ }
+ if (n > 9) // 10-99
+ {
+ dest.push_back('0');
+ dest.push_back('0' + static_cast<char>(n / 10));
+ dest.push_back('0' + static_cast<char>(n % 10));
+ return;
+ }
+ if (n >= 0)
+ {
+ dest.push_back('0');
+ dest.push_back('0');
+ dest.push_back('0' + static_cast<char>(n));
+ return;
+ }
+ // negatives (unlikely, but just in case let fmt deal with it)
+ fmt::format_to(dest, "{:03}", n);
+}
+
+template<size_t Buffer_Size>
+inline void pad6(size_t n, fmt::basic_memory_buffer<char, Buffer_Size> &dest)
+{
+ if (n > 99999)
+ {
+ append_int(n, dest);
+ return;
+ }
+ pad3(static_cast<int>(n / 1000), dest);
+ pad3(static_cast<int>(n % 1000), dest);
+}
+
+// return fraction of a second of the given time_point.
+// e.g.
+// fraction<std::milliseconds>(tp) -> will return the millis part of the second
+template<typename ToDuration>
+inline ToDuration time_fraction(const log_clock::time_point &tp)
+{
+ using namespace std::chrono;
+ auto duration = tp.time_since_epoch();
+ auto secs = duration_cast<seconds>(duration);
+ return duration_cast<ToDuration>(duration) - duration_cast<ToDuration>(secs);
+}
+
+} // namespace fmt_helper
+} // namespace details
+} // namespace spdlog
\ No newline at end of file
diff --git a/src/include/spdlog/details/log_msg.h b/src/include/spdlog/details/log_msg.h
new file mode 100644
index 0000000000000000000000000000000000000000..ce988e4f33fb43f8ea9e08d141760e806ef595eb
--- /dev/null
+++ b/src/include/spdlog/details/log_msg.h
@@ -0,0 +1,47 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "spdlog/common.h"
+#include "spdlog/details/os.h"
+
+#include <string>
+#include <utility>
+
+namespace spdlog {
+namespace details {
+struct log_msg
+{
+ log_msg() = default;
+ log_msg(const std::string *loggers_name, level::level_enum lvl)
+ : logger_name(loggers_name)
+ , level(lvl)
+ {
+#ifndef SPDLOG_NO_DATETIME
+ time = os::now();
+#endif
+
+#ifndef SPDLOG_NO_THREAD_ID
+ thread_id = os::thread_id();
+#endif
+ }
+
+ log_msg(const log_msg &other) = delete;
+ log_msg(log_msg &&other) = delete;
+ log_msg &operator=(log_msg &&other) = delete;
+
+ const std::string *logger_name{nullptr};
+ level::level_enum level;
+ log_clock::time_point time;
+ size_t thread_id;
+ fmt::memory_buffer raw;
+ size_t msg_id{0};
+ // info about wrapping the formatted text with color
+ mutable size_t color_range_start{0};
+ mutable size_t color_range_end{0};
+};
+} // namespace details
+} // namespace spdlog
diff --git a/src/include/spdlog/details/logger_impl.h b/src/include/spdlog/details/logger_impl.h
new file mode 100644
index 0000000000000000000000000000000000000000..0a7c5b6bf1c9759021d1bb51c802def0c03255f9
--- /dev/null
+++ b/src/include/spdlog/details/logger_impl.h
@@ -0,0 +1,345 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include <memory>
+#include <string>
+
+// create logger with given name, sinks and the default pattern formatter
+// all other ctors will call this one
+template<typename It>
+inline spdlog::logger::logger(std::string logger_name, const It &begin, const It &end)
+ : name_(std::move(logger_name))
+ , sinks_(begin, end)
+ , level_(level::info)
+ , flush_level_(level::off)
+ , last_err_time_(0)
+ , msg_counter_(1) // message counter will start from 1. 0-message id will be
+ // reserved for controll messages
+{
+ err_handler_ = [this](const std::string &msg) { this->default_err_handler_(msg); };
+}
+
+// ctor with sinks as init list
+inline spdlog::logger::logger(std::string logger_name, sinks_init_list sinks_list)
+ : logger(std::move(logger_name), sinks_list.begin(), sinks_list.end())
+{
+}
+
+// ctor with single sink
+inline spdlog::logger::logger(std::string logger_name, spdlog::sink_ptr single_sink)
+ : logger(std::move(logger_name), {std::move(single_sink)})
+{
+}
+
+inline spdlog::logger::~logger() = default;
+
+inline void spdlog::logger::set_formatter(std::unique_ptr<spdlog::formatter> f)
+{
+ for (auto &sink : sinks_)
+ {
+ sink->set_formatter(f->clone());
+ }
+}
+
+inline void spdlog::logger::set_pattern(std::string pattern, pattern_time_type time_type)
+{
+ set_formatter(std::unique_ptr<spdlog::formatter>(new pattern_formatter(std::move(pattern), time_type)));
+}
+
+template<typename... Args>
+inline void spdlog::logger::log(level::level_enum lvl, const char *fmt, const Args &... args)
+{
+ if (!should_log(lvl))
+ {
+ return;
+ }
+
+ try
+ {
+ details::log_msg log_msg(&name_, lvl);
+ fmt::format_to(log_msg.raw, fmt, args...);
+ sink_it_(log_msg);
+ }
+ SPDLOG_CATCH_AND_HANDLE
+}
+
+template<typename... Args>
+inline void spdlog::logger::log(level::level_enum lvl, const char *msg)
+{
+ if (!should_log(lvl))
+ {
+ return;
+ }
+ try
+ {
+ details::log_msg log_msg(&name_, lvl);
+ fmt::format_to(log_msg.raw, "{}", msg);
+ sink_it_(log_msg);
+ }
+ SPDLOG_CATCH_AND_HANDLE
+}
+
+template<typename T>
+inline void spdlog::logger::log(level::level_enum lvl, const T &msg)
+{
+ if (!should_log(lvl))
+ {
+ return;
+ }
+ try
+ {
+ details::log_msg log_msg(&name_, lvl);
+ fmt::format_to(log_msg.raw, "{}", msg);
+ sink_it_(log_msg);
+ }
+ SPDLOG_CATCH_AND_HANDLE
+}
+
+template<typename... Args>
+inline void spdlog::logger::trace(const char *fmt, const Args &... args)
+{
+ log(level::trace, fmt, args...);
+}
+
+template<typename... Args>
+inline void spdlog::logger::debug(const char *fmt, const Args &... args)
+{
+ log(level::debug, fmt, args...);
+}
+
+template<typename... Args>
+inline void spdlog::logger::info(const char *fmt, const Args &... args)
+{
+ log(level::info, fmt, args...);
+}
+
+template<typename... Args>
+inline void spdlog::logger::warn(const char *fmt, const Args &... args)
+{
+ log(level::warn, fmt, args...);
+}
+
+template<typename... Args>
+inline void spdlog::logger::error(const char *fmt, const Args &... args)
+{
+ log(level::err, fmt, args...);
+}
+
+template<typename... Args>
+inline void spdlog::logger::critical(const char *fmt, const Args &... args)
+{
+ log(level::critical, fmt, args...);
+}
+
+template<typename T>
+inline void spdlog::logger::trace(const T &msg)
+{
+ log(level::trace, msg);
+}
+
+template<typename T>
+inline void spdlog::logger::debug(const T &msg)
+{
+ log(level::debug, msg);
+}
+
+template<typename T>
+inline void spdlog::logger::info(const T &msg)
+{
+ log(level::info, msg);
+}
+
+template<typename T>
+inline void spdlog::logger::warn(const T &msg)
+{
+ log(level::warn, msg);
+}
+
+template<typename T>
+inline void spdlog::logger::error(const T &msg)
+{
+ log(level::err, msg);
+}
+
+template<typename T>
+inline void spdlog::logger::critical(const T &msg)
+{
+ log(level::critical, msg);
+}
+
+#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
+template<typename... Args>
+inline void spdlog::logger::log(level::level_enum lvl, const wchar_t *fmt, const Args &... args)
+{
+ if (!should_log(lvl))
+ {
+ return;
+ }
+
+ decltype(wstring_converter_)::byte_string utf8_string;
+
+ try
+ {
+ {
+ std::lock_guard<std::mutex> lock(wstring_converter_mutex_);
+ utf8_string = wstring_converter_.to_bytes(fmt);
+ }
+ log(lvl, utf8_string.c_str(), args...);
+ }
+ SPDLOG_CATCH_AND_HANDLE
+}
+
+template<typename... Args>
+inline void spdlog::logger::trace(const wchar_t *fmt, const Args &... args)
+{
+ log(level::trace, fmt, args...);
+}
+
+template<typename... Args>
+inline void spdlog::logger::debug(const wchar_t *fmt, const Args &... args)
+{
+ log(level::debug, fmt, args...);
+}
+
+template<typename... Args>
+inline void spdlog::logger::info(const wchar_t *fmt, const Args &... args)
+{
+ log(level::info, fmt, args...);
+}
+
+template<typename... Args>
+inline void spdlog::logger::warn(const wchar_t *fmt, const Args &... args)
+{
+ log(level::warn, fmt, args...);
+}
+
+template<typename... Args>
+inline void spdlog::logger::error(const wchar_t *fmt, const Args &... args)
+{
+ log(level::err, fmt, args...);
+}
+
+template<typename... Args>
+inline void spdlog::logger::critical(const wchar_t *fmt, const Args &... args)
+{
+ log(level::critical, fmt, args...);
+}
+
+#endif // SPDLOG_WCHAR_TO_UTF8_SUPPORT
+
+//
+// name and level
+//
+inline const std::string &spdlog::logger::name() const
+{
+ return name_;
+}
+
+inline void spdlog::logger::set_level(spdlog::level::level_enum log_level)
+{
+ level_.store(log_level);
+}
+
+inline void spdlog::logger::set_error_handler(spdlog::log_err_handler err_handler)
+{
+ err_handler_ = std::move(err_handler);
+}
+
+inline spdlog::log_err_handler spdlog::logger::error_handler()
+{
+ return err_handler_;
+}
+
+inline void spdlog::logger::flush()
+{
+ try
+ {
+ flush_();
+ }
+ SPDLOG_CATCH_AND_HANDLE
+}
+
+inline void spdlog::logger::flush_on(level::level_enum log_level)
+{
+ flush_level_.store(log_level);
+}
+
+inline bool spdlog::logger::should_flush_(const details::log_msg &msg)
+{
+ auto flush_level = flush_level_.load(std::memory_order_relaxed);
+ return (msg.level >= flush_level) && (msg.level != level::off);
+}
+
+inline spdlog::level::level_enum spdlog::logger::level() const
+{
+ return static_cast<spdlog::level::level_enum>(level_.load(std::memory_order_relaxed));
+}
+
+inline bool spdlog::logger::should_log(spdlog::level::level_enum msg_level) const
+{
+ return msg_level >= level_.load(std::memory_order_relaxed);
+}
+
+//
+// protected virtual called at end of each user log call (if enabled) by the
+// line_logger
+//
+inline void spdlog::logger::sink_it_(details::log_msg &msg)
+{
+#if defined(SPDLOG_ENABLE_MESSAGE_COUNTER)
+ incr_msg_counter_(msg);
+#endif
+ for (auto &sink : sinks_)
+ {
+ if (sink->should_log(msg.level))
+ {
+ sink->log(msg);
+ }
+ }
+
+ if (should_flush_(msg))
+ {
+ flush();
+ }
+}
+
+inline void spdlog::logger::flush_()
+{
+ for (auto &sink : sinks_)
+ {
+ sink->flush();
+ }
+}
+
+inline void spdlog::logger::default_err_handler_(const std::string &msg)
+{
+ auto now = time(nullptr);
+ if (now - last_err_time_ < 60)
+ {
+ return;
+ }
+ last_err_time_ = now;
+ auto tm_time = details::os::localtime(now);
+ char date_buf[100];
+ std::strftime(date_buf, sizeof(date_buf), "%Y-%m-%d %H:%M:%S", &tm_time);
+ fmt::print(stderr, "[*** LOG ERROR ***] [{}] [{}] {}\n", date_buf, name(), msg);
+}
+
+inline void spdlog::logger::incr_msg_counter_(details::log_msg &msg)
+{
+ msg.msg_id = msg_counter_.fetch_add(1, std::memory_order_relaxed);
+}
+
+inline const std::vector<spdlog::sink_ptr> &spdlog::logger::sinks() const
+{
+ return sinks_;
+}
+
+inline std::vector<spdlog::sink_ptr> &spdlog::logger::sinks()
+{
+ return sinks_;
+}
diff --git a/src/include/spdlog/details/mpmc_blocking_q.h b/src/include/spdlog/details/mpmc_blocking_q.h
new file mode 100644
index 0000000000000000000000000000000000000000..d607da2c38170a2238b0a7235d1448ae14ef3d97
--- /dev/null
+++ b/src/include/spdlog/details/mpmc_blocking_q.h
@@ -0,0 +1,115 @@
+#pragma once
+
+//
+// Copyright(c) 2018 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+// multi producer-multi consumer blocking queue.
+// enqueue(..) - will block until room found to put the new message.
+// enqueue_nowait(..) - will return immediately with false if no room left in
+// the queue.
+// dequeue_for(..) - will block until the queue is not empty or timeout have
+// passed.
+
+#include "spdlog/details/circular_q.h"
+
+#include <condition_variable>
+#include <mutex>
+
+namespace spdlog {
+namespace details {
+
+template<typename T>
+class mpmc_blocking_queue
+{
+public:
+ using item_type = T;
+ explicit mpmc_blocking_queue(size_t max_items)
+ : q_(max_items)
+ {
+ }
+
+#ifndef __MINGW32__
+ // try to enqueue and block if no room left
+ void enqueue(T &&item)
+ {
+ {
+ std::unique_lock<std::mutex> lock(queue_mutex_);
+ pop_cv_.wait(lock, [this] { return !this->q_.full(); });
+ q_.push_back(std::move(item));
+ }
+ push_cv_.notify_one();
+ }
+
+ // enqueue immediately. overrun oldest message in the queue if no room left.
+ void enqueue_nowait(T &&item)
+ {
+ {
+ std::unique_lock<std::mutex> lock(queue_mutex_);
+ q_.push_back(std::move(item));
+ }
+ push_cv_.notify_one();
+ }
+
+ // try to dequeue item. if no item found. wait upto timeout and try again
+ // Return true, if succeeded dequeue item, false otherwise
+ bool dequeue_for(T &popped_item, std::chrono::milliseconds wait_duration)
+ {
+ {
+ std::unique_lock<std::mutex> lock(queue_mutex_);
+ if (!push_cv_.wait_for(lock, wait_duration, [this] { return !this->q_.empty(); }))
+ {
+ return false;
+ }
+ q_.pop_front(popped_item);
+ }
+ pop_cv_.notify_one();
+ return true;
+ }
+
+#else
+ // apparently mingw deadlocks if the mutex is released before cv.notify_one(),
+ // so release the mutex at the very end each function.
+
+ // try to enqueue and block if no room left
+ void enqueue(T &&item)
+ {
+ std::unique_lock<std::mutex> lock(queue_mutex_);
+ pop_cv_.wait(lock, [this] { return !this->q_.full(); });
+ q_.push_back(std::move(item));
+ push_cv_.notify_one();
+ }
+
+ // enqueue immediately. overrun oldest message in the queue if no room left.
+ void enqueue_nowait(T &&item)
+ {
+ std::unique_lock<std::mutex> lock(queue_mutex_);
+ q_.push_back(std::move(item));
+ push_cv_.notify_one();
+ }
+
+ // try to dequeue item. if no item found. wait upto timeout and try again
+ // Return true, if succeeded dequeue item, false otherwise
+ bool dequeue_for(T &popped_item, std::chrono::milliseconds wait_duration)
+ {
+ std::unique_lock<std::mutex> lock(queue_mutex_);
+ if (!push_cv_.wait_for(lock, wait_duration, [this] { return !this->q_.empty(); }))
+ {
+ return false;
+ }
+ q_.pop_front(popped_item);
+ pop_cv_.notify_one();
+ return true;
+ }
+
+#endif
+
+private:
+ std::mutex queue_mutex_;
+ std::condition_variable push_cv_;
+ std::condition_variable pop_cv_;
+ spdlog::details::circular_q<T> q_;
+};
+} // namespace details
+} // namespace spdlog
diff --git a/src/include/spdlog/details/null_mutex.h b/src/include/spdlog/details/null_mutex.h
new file mode 100644
index 0000000000000000000000000000000000000000..3f495bd98a36ad48174a0e0e51acf73f670d9952
--- /dev/null
+++ b/src/include/spdlog/details/null_mutex.h
@@ -0,0 +1,45 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include <atomic>
+// null, no cost dummy "mutex" and dummy "atomic" int
+
+namespace spdlog {
+namespace details {
+struct null_mutex
+{
+ void lock() {}
+ void unlock() {}
+ bool try_lock()
+ {
+ return true;
+ }
+};
+
+struct null_atomic_int
+{
+ int value;
+ null_atomic_int() = default;
+
+ explicit null_atomic_int(int val)
+ : value(val)
+ {
+ }
+
+ int load(std::memory_order) const
+ {
+ return value;
+ }
+
+ void store(int val)
+ {
+ value = val;
+ }
+};
+
+} // namespace details
+} // namespace spdlog
diff --git a/src/include/spdlog/details/os.h b/src/include/spdlog/details/os.h
new file mode 100644
index 0000000000000000000000000000000000000000..d7f7430ff075ae16b97da8e3779ace79b00b21d9
--- /dev/null
+++ b/src/include/spdlog/details/os.h
@@ -0,0 +1,432 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+#pragma once
+
+#include "../common.h"
+
+#include <algorithm>
+#include <chrono>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+#include <functional>
+#include <string>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <thread>
+
+#ifdef _WIN32
+
+#ifndef NOMINMAX
+#define NOMINMAX // prevent windows redefining min/max
+#endif
+
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#include <io.h> // _get_osfhandle and _isatty support
+#include <process.h> // _get_pid support
+#include <windows.h>
+
+#ifdef __MINGW32__
+#include <share.h>
+#endif
+
+#else // unix
+
+#include <fcntl.h>
+#include <unistd.h>
+
+#ifdef __linux__
+#include <sys/syscall.h> //Use gettid() syscall under linux to get thread id
+
+#elif __FreeBSD__
+#include <sys/thr.h> //Use thr_self() syscall under FreeBSD to get thread id
+#endif
+
+#endif // unix
+
+#ifndef __has_feature // Clang - feature checking macros.
+#define __has_feature(x) 0 // Compatibility with non-clang compilers.
+#endif
+
+namespace spdlog {
+namespace details {
+namespace os {
+
+inline spdlog::log_clock::time_point now()
+{
+
+#if defined __linux__ && defined SPDLOG_CLOCK_COARSE
+ timespec ts;
+ ::clock_gettime(CLOCK_REALTIME_COARSE, &ts);
+ return std::chrono::time_point<log_clock, typename log_clock::duration>(
+ std::chrono::duration_cast<typename log_clock::duration>(std::chrono::seconds(ts.tv_sec) + std::chrono::nanoseconds(ts.tv_nsec)));
+
+#else
+ return log_clock::now();
+#endif
+}
+inline std::tm localtime(const std::time_t &time_tt)
+{
+
+#ifdef _WIN32
+ std::tm tm;
+ localtime_s(&tm, &time_tt);
+#else
+ std::tm tm;
+ localtime_r(&time_tt, &tm);
+#endif
+ return tm;
+}
+
+inline std::tm localtime()
+{
+ std::time_t now_t = time(nullptr);
+ return localtime(now_t);
+}
+
+inline std::tm gmtime(const std::time_t &time_tt)
+{
+
+#ifdef _WIN32
+ std::tm tm;
+ gmtime_s(&tm, &time_tt);
+#else
+ std::tm tm;
+ gmtime_r(&time_tt, &tm);
+#endif
+ return tm;
+}
+
+inline std::tm gmtime()
+{
+ std::time_t now_t = time(nullptr);
+ return gmtime(now_t);
+}
+inline bool operator==(const std::tm &tm1, const std::tm &tm2)
+{
+ return (tm1.tm_sec == tm2.tm_sec && tm1.tm_min == tm2.tm_min && tm1.tm_hour == tm2.tm_hour && tm1.tm_mday == tm2.tm_mday &&
+ tm1.tm_mon == tm2.tm_mon && tm1.tm_year == tm2.tm_year && tm1.tm_isdst == tm2.tm_isdst);
+}
+
+inline bool operator!=(const std::tm &tm1, const std::tm &tm2)
+{
+ return !(tm1 == tm2);
+}
+
+// eol definition
+#if !defined(SPDLOG_EOL)
+#ifdef _WIN32
+#define SPDLOG_EOL "\r\n"
+#else
+#define SPDLOG_EOL "\n"
+#endif
+#endif
+
+SPDLOG_CONSTEXPR static const char *default_eol = SPDLOG_EOL;
+
+// folder separator
+#ifdef _WIN32
+SPDLOG_CONSTEXPR static const char folder_sep = '\\';
+#else
+SPDLOG_CONSTEXPR static const char folder_sep = '/';
+#endif
+
+inline void prevent_child_fd(FILE *f)
+{
+
+#ifdef _WIN32
+#if !defined(__cplusplus_winrt)
+ auto file_handle = (HANDLE)_get_osfhandle(_fileno(f));
+ if (!::SetHandleInformation(file_handle, HANDLE_FLAG_INHERIT, 0))
+ throw spdlog_ex("SetHandleInformation failed", errno);
+#endif
+#else
+ auto fd = fileno(f);
+ if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
+ {
+ throw spdlog_ex("fcntl with FD_CLOEXEC failed", errno);
+ }
+#endif
+}
+
+// fopen_s on non windows for writing
+inline bool fopen_s(FILE **fp, const filename_t &filename, const filename_t &mode)
+{
+#ifdef _WIN32
+#ifdef SPDLOG_WCHAR_FILENAMES
+ *fp = _wfsopen((filename.c_str()), mode.c_str(), _SH_DENYWR);
+#else
+ *fp = _fsopen((filename.c_str()), mode.c_str(), _SH_DENYWR);
+#endif
+#else // unix
+ *fp = fopen((filename.c_str()), mode.c_str());
+#endif
+
+#ifdef SPDLOG_PREVENT_CHILD_FD
+ if (*fp != nullptr)
+ {
+ prevent_child_fd(*fp);
+ }
+#endif
+ return *fp == nullptr;
+}
+
+inline int remove(const filename_t &filename)
+{
+#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
+ return _wremove(filename.c_str());
+#else
+ return std::remove(filename.c_str());
+#endif
+}
+
+inline int rename(const filename_t &filename1, const filename_t &filename2)
+{
+#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
+ return _wrename(filename1.c_str(), filename2.c_str());
+#else
+ return std::rename(filename1.c_str(), filename2.c_str());
+#endif
+}
+
+// Return if file exists
+inline bool file_exists(const filename_t &filename)
+{
+#ifdef _WIN32
+#ifdef SPDLOG_WCHAR_FILENAMES
+ auto attribs = GetFileAttributesW(filename.c_str());
+#else
+ auto attribs = GetFileAttributesA(filename.c_str());
+#endif
+ return (attribs != INVALID_FILE_ATTRIBUTES && !(attribs & FILE_ATTRIBUTE_DIRECTORY));
+#else // common linux/unix all have the stat system call
+ struct stat buffer;
+ return (stat(filename.c_str(), &buffer) == 0);
+#endif
+}
+
+// Return file size according to open FILE* object
+inline size_t filesize(FILE *f)
+{
+ if (f == nullptr)
+ {
+ throw spdlog_ex("Failed getting file size. fd is null");
+ }
+#if defined(_WIN32) && !defined(__CYGWIN__)
+ int fd = _fileno(f);
+#if _WIN64 // 64 bits
+ struct _stat64 st;
+ if (_fstat64(fd, &st) == 0)
+ {
+ return st.st_size;
+ }
+
+#else // windows 32 bits
+ long ret = _filelength(fd);
+ if (ret >= 0)
+ {
+ return static_cast<size_t>(ret);
+ }
+#endif
+
+#else // unix
+ int fd = fileno(f);
+// 64 bits(but not in osx or cygwin, where fstat64 is deprecated)
+#if !defined(__FreeBSD__) && !defined(__APPLE__) && (defined(__x86_64__) || defined(__ppc64__)) && !defined(__CYGWIN__)
+ struct stat64 st;
+ if (fstat64(fd, &st) == 0)
+ {
+ return static_cast<size_t>(st.st_size);
+ }
+#else // unix 32 bits or cygwin
+ struct stat st;
+
+ if (fstat(fd, &st) == 0)
+ {
+ return static_cast<size_t>(st.st_size);
+ }
+#endif
+#endif
+ throw spdlog_ex("Failed getting file size from fd", errno);
+}
+
+// Return utc offset in minutes or throw spdlog_ex on failure
+inline int utc_minutes_offset(const std::tm &tm = details::os::localtime())
+{
+
+#ifdef _WIN32
+#if _WIN32_WINNT < _WIN32_WINNT_WS08
+ TIME_ZONE_INFORMATION tzinfo;
+ auto rv = GetTimeZoneInformation(&tzinfo);
+#else
+ DYNAMIC_TIME_ZONE_INFORMATION tzinfo;
+ auto rv = GetDynamicTimeZoneInformation(&tzinfo);
+#endif
+ if (rv == TIME_ZONE_ID_INVALID)
+ throw spdlog::spdlog_ex("Failed getting timezone info. ", errno);
+
+ int offset = -tzinfo.Bias;
+ if (tm.tm_isdst)
+ {
+ offset -= tzinfo.DaylightBias;
+ }
+ else
+ {
+ offset -= tzinfo.StandardBias;
+ }
+ return offset;
+#else
+
+#if defined(sun) || defined(__sun) || defined(_AIX)
+ // 'tm_gmtoff' field is BSD extension and it's missing on SunOS/Solaris
+ struct helper
+ {
+ static long int calculate_gmt_offset(const std::tm &localtm = details::os::localtime(), const std::tm &gmtm = details::os::gmtime())
+ {
+ int local_year = localtm.tm_year + (1900 - 1);
+ int gmt_year = gmtm.tm_year + (1900 - 1);
+
+ long int days = (
+ // difference in day of year
+ localtm.tm_yday -
+ gmtm.tm_yday
+
+ // + intervening leap days
+ + ((local_year >> 2) - (gmt_year >> 2)) - (local_year / 100 - gmt_year / 100) +
+ ((local_year / 100 >> 2) - (gmt_year / 100 >> 2))
+
+ // + difference in years * 365 */
+ + (long int)(local_year - gmt_year) * 365);
+
+ long int hours = (24 * days) + (localtm.tm_hour - gmtm.tm_hour);
+ long int mins = (60 * hours) + (localtm.tm_min - gmtm.tm_min);
+ long int secs = (60 * mins) + (localtm.tm_sec - gmtm.tm_sec);
+
+ return secs;
+ }
+ };
+
+ auto offset_seconds = helper::calculate_gmt_offset(tm);
+#else
+ auto offset_seconds = tm.tm_gmtoff;
+#endif
+
+ return static_cast<int>(offset_seconds / 60);
+#endif
+}
+
+// Return current thread id as size_t
+// It exists because the std::this_thread::get_id() is much slower(especially
+// under VS 2013)
+inline size_t _thread_id()
+{
+#ifdef _WIN32
+ return static_cast<size_t>(::GetCurrentThreadId());
+#elif __linux__
+#if defined(__ANDROID__) && defined(__ANDROID_API__) && (__ANDROID_API__ < 21)
+#define SYS_gettid __NR_gettid
+#endif
+ return static_cast<size_t>(syscall(SYS_gettid));
+#elif __FreeBSD__
+ long tid;
+ thr_self(&tid);
+ return static_cast<size_t>(tid);
+#elif __APPLE__
+ uint64_t tid;
+ pthread_threadid_np(nullptr, &tid);
+ return static_cast<size_t>(tid);
+#else // Default to standard C++11 (other Unix)
+ return static_cast<size_t>(std::hash<std::thread::id>()(std::this_thread::get_id()));
+#endif
+}
+
+// Return current thread id as size_t (from thread local storage)
+inline size_t thread_id()
+{
+#if defined(SPDLOG_DISABLE_TID_CACHING) || (defined(_MSC_VER) && (_MSC_VER < 1900)) || defined(__cplusplus_winrt) || \
+ (defined(__clang__) && !__has_feature(cxx_thread_local))
+ return _thread_id();
+#else // cache thread id in tls
+ static thread_local const size_t tid = _thread_id();
+ return tid;
+#endif
+}
+
+// This is avoid msvc issue in sleep_for that happens if the clock changes.
+// See https://github.com/gabime/spdlog/issues/609
+inline void sleep_for_millis(int milliseconds)
+{
+#if defined(_WIN32)
+ ::Sleep(milliseconds);
+#else
+ std::this_thread::sleep_for(std::chrono::milliseconds(milliseconds));
+#endif
+}
+
+// wchar support for windows file names (SPDLOG_WCHAR_FILENAMES must be defined)
+#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
+#define SPDLOG_FILENAME_T(s) L##s
+inline std::string filename_to_str(const filename_t &filename)
+{
+ std::wstring_convert<std::codecvt_utf8<wchar_t>, wchar_t> c;
+ return c.to_bytes(filename);
+}
+#else
+#define SPDLOG_FILENAME_T(s) s
+inline std::string filename_to_str(const filename_t &filename)
+{
+ return filename;
+}
+#endif
+
+inline int pid()
+{
+
+#ifdef _WIN32
+ return static_cast<int>(::GetCurrentProcessId());
+#else
+ return static_cast<int>(::getpid());
+#endif
+}
+
+// Determine if the terminal supports colors
+// Source: https://github.com/agauniyal/rang/
+inline bool is_color_terminal()
+{
+#ifdef _WIN32
+ return true;
+#else
+ static constexpr const char *Terms[] = {
+ "ansi", "color", "console", "cygwin", "gnome", "konsole", "kterm", "linux", "msys", "putty", "rxvt", "screen", "vt100", "xterm"};
+
+ const char *env_p = std::getenv("TERM");
+ if (env_p == nullptr)
+ {
+ return false;
+ }
+
+ static const bool result =
+ std::any_of(std::begin(Terms), std::end(Terms), [&](const char *term) { return std::strstr(env_p, term) != nullptr; });
+ return result;
+#endif
+}
+
+// Detrmine if the terminal attached
+// Source: https://github.com/agauniyal/rang/
+inline bool in_terminal(FILE *file)
+{
+
+#ifdef _WIN32
+ return _isatty(_fileno(file)) != 0;
+#else
+ return isatty(fileno(file)) != 0;
+#endif
+}
+} // namespace os
+} // namespace details
+} // namespace spdlog
diff --git a/src/include/spdlog/details/pattern_formatter.h b/src/include/spdlog/details/pattern_formatter.h
new file mode 100644
index 0000000000000000000000000000000000000000..765f93056fd4b095d09b44edc9b59af06ca2ea57
--- /dev/null
+++ b/src/include/spdlog/details/pattern_formatter.h
@@ -0,0 +1,772 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "spdlog/details/fmt_helper.h"
+#include "spdlog/details/log_msg.h"
+#include "spdlog/details/os.h"
+#include "spdlog/fmt/fmt.h"
+#include "spdlog/formatter.h"
+
+#include <array>
+#include <chrono>
+#include <ctime>
+#include <memory>
+#include <mutex>
+#include <string>
+#include <thread>
+#include <utility>
+#include <vector>
+
+namespace spdlog {
+namespace details {
+
+class flag_formatter
+{
+public:
+ virtual ~flag_formatter() = default;
+ virtual void format(const details::log_msg &msg, const std::tm &tm_time, fmt::memory_buffer &dest) = 0;
+};
+
+///////////////////////////////////////////////////////////////////////
+// name & level pattern appenders
+///////////////////////////////////////////////////////////////////////
+class name_formatter : public flag_formatter
+{
+ void format(const details::log_msg &msg, const std::tm &, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::append_str(*msg.logger_name, dest);
+ }
+};
+
+// log level appender
+class level_formatter : public flag_formatter
+{
+ void format(const details::log_msg &msg, const std::tm &, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::append_c_str(level::to_c_str(msg.level), dest);
+ }
+};
+
+// short log level appender
+class short_level_formatter : public flag_formatter
+{
+ void format(const details::log_msg &msg, const std::tm &, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::append_c_str(level::to_short_c_str(msg.level), dest);
+ }
+};
+
+///////////////////////////////////////////////////////////////////////
+// Date time pattern appenders
+///////////////////////////////////////////////////////////////////////
+
+static const char *ampm(const tm &t)
+{
+ return t.tm_hour >= 12 ? "PM" : "AM";
+}
+
+static unsigned int to12h(const tm &t)
+{
+ return t.tm_hour > 12 ? t.tm_hour - 12 : t.tm_hour;
+}
+
+// Abbreviated weekday name
+static const char *days[]{"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
+class a_formatter : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::append_c_str(days[tm_time.tm_wday], dest);
+ }
+};
+
+// Full weekday name
+static const char *full_days[]{"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
+class A_formatter : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::append_c_str(full_days[tm_time.tm_wday], dest);
+ }
+};
+
+// Abbreviated month
+static const char *months[]{"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sept", "Oct", "Nov", "Dec"};
+class b_formatter : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::append_c_str(months[tm_time.tm_mon], dest);
+ }
+};
+
+// Full month name
+static const char *full_months[]{
+ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"};
+class B_formatter : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::append_c_str(full_months[tm_time.tm_mon], dest);
+ }
+};
+
+// Date and time representation (Thu Aug 23 15:35:46 2014)
+class c_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ // fmt::format_to(dest, "{} {} {} ", days[tm_time.tm_wday],
+ // months[tm_time.tm_mon], tm_time.tm_mday);
+ // date
+ fmt_helper::append_str(days[tm_time.tm_wday], dest);
+ dest.push_back(' ');
+ fmt_helper::append_str(months[tm_time.tm_mon], dest);
+ dest.push_back(' ');
+ fmt_helper::append_int(tm_time.tm_mday, dest);
+ dest.push_back(' ');
+ // time
+
+ fmt_helper::pad2(tm_time.tm_hour, dest);
+ dest.push_back(':');
+ fmt_helper::pad2(tm_time.tm_min, dest);
+ dest.push_back(':');
+ fmt_helper::pad2(tm_time.tm_sec, dest);
+ dest.push_back(' ');
+ fmt_helper::append_int(tm_time.tm_year + 1900, dest);
+ }
+};
+
+// year - 2 digit
+class C_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::pad2(tm_time.tm_year % 100, dest);
+ }
+};
+
+// Short MM/DD/YY date, equivalent to %m/%d/%y 08/23/01
+class D_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::pad2(tm_time.tm_mon + 1, dest);
+ dest.push_back('/');
+ fmt_helper::pad2(tm_time.tm_mday, dest);
+ dest.push_back('/');
+ fmt_helper::pad2(tm_time.tm_year % 100, dest);
+ }
+};
+
+// year - 4 digit
+class Y_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::append_int(tm_time.tm_year + 1900, dest);
+ }
+};
+
+// month 1-12
+class m_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::pad2(tm_time.tm_mon + 1, dest);
+ }
+};
+
+// day of month 1-31
+class d_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::pad2(tm_time.tm_mday, dest);
+ }
+};
+
+// hours in 24 format 0-23
+class H_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::pad2(tm_time.tm_hour, dest);
+ }
+};
+
+// hours in 12 format 1-12
+class I_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::pad2(to12h(tm_time), dest);
+ }
+};
+
+// minutes 0-59
+class M_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::pad2(tm_time.tm_min, dest);
+ }
+};
+
+// seconds 0-59
+class S_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::pad2(tm_time.tm_sec, dest);
+ }
+};
+
+// milliseconds
+class e_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &msg, const std::tm &, fmt::memory_buffer &dest) override
+ {
+ auto millis = fmt_helper::time_fraction<std::chrono::milliseconds>(msg.time);
+ fmt_helper::pad3(static_cast<int>(millis.count()), dest);
+ }
+};
+
+// microseconds
+class f_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &msg, const std::tm &, fmt::memory_buffer &dest) override
+ {
+ auto micros = fmt_helper::time_fraction<std::chrono::microseconds>(msg.time);
+ fmt_helper::pad6(static_cast<int>(micros.count()), dest);
+ }
+};
+
+// nanoseconds
+class F_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &msg, const std::tm &, fmt::memory_buffer &dest) override
+ {
+ auto ns = fmt_helper::time_fraction<std::chrono::nanoseconds>(msg.time);
+ fmt::format_to(dest, "{:09}", ns.count());
+ }
+};
+
+// seconds since epoch
+class E_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &msg, const std::tm &, fmt::memory_buffer &dest) override
+ {
+ auto duration = msg.time.time_since_epoch();
+ auto seconds = std::chrono::duration_cast<std::chrono::seconds>(duration).count();
+ fmt_helper::append_int(seconds, dest);
+ }
+};
+
+// AM/PM
+class p_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::append_c_str(ampm(tm_time), dest);
+ }
+};
+
+// 12 hour clock 02:55:02 pm
+class r_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::pad2(to12h(tm_time), dest);
+ dest.push_back(':');
+ fmt_helper::pad2(tm_time.tm_min, dest);
+ dest.push_back(':');
+ fmt_helper::pad2(tm_time.tm_sec, dest);
+ dest.push_back(' ');
+ fmt_helper::append_c_str(ampm(tm_time), dest);
+ }
+};
+
+// 24-hour HH:MM time, equivalent to %H:%M
+class R_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::pad2(tm_time.tm_hour, dest);
+ dest.push_back(':');
+ fmt_helper::pad2(tm_time.tm_min, dest);
+ }
+};
+
+// ISO 8601 time format (HH:MM:SS), equivalent to %H:%M:%S
+class T_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ // fmt::format_to(dest, "{:02}:{:02}:{:02}", tm_time.tm_hour,
+ // tm_time.tm_min, tm_time.tm_sec);
+ fmt_helper::pad2(tm_time.tm_hour, dest);
+ dest.push_back(':');
+ fmt_helper::pad2(tm_time.tm_min, dest);
+ dest.push_back(':');
+ fmt_helper::pad2(tm_time.tm_sec, dest);
+ }
+};
+
+// ISO 8601 offset from UTC in timezone (+-HH:MM)
+class z_formatter SPDLOG_FINAL : public flag_formatter
+{
+public:
+ const std::chrono::seconds cache_refresh = std::chrono::seconds(5);
+
+ z_formatter() = default;
+ z_formatter(const z_formatter &) = delete;
+ z_formatter &operator=(const z_formatter &) = delete;
+
+ void format(const details::log_msg &msg, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+#ifdef _WIN32
+ int total_minutes = get_cached_offset(msg, tm_time);
+#else
+ // No need to chache under gcc,
+ // it is very fast (already stored in tm.tm_gmtoff)
+ (void)(msg);
+ int total_minutes = os::utc_minutes_offset(tm_time);
+#endif
+ bool is_negative = total_minutes < 0;
+ if (is_negative)
+ {
+ total_minutes = -total_minutes;
+ dest.push_back('-');
+ }
+ else
+ {
+ dest.push_back('+');
+ }
+
+ fmt_helper::pad2(total_minutes / 60, dest); // hours
+ dest.push_back(':');
+ fmt_helper::pad2(total_minutes % 60, dest); // minutes
+ }
+
+private:
+ log_clock::time_point last_update_{std::chrono::seconds(0)};
+#ifdef _WIN32
+ int offset_minutes_{0};
+
+ int get_cached_offset(const log_msg &msg, const std::tm &tm_time)
+ {
+ if (msg.time - last_update_ >= cache_refresh)
+ {
+ offset_minutes_ = os::utc_minutes_offset(tm_time);
+ last_update_ = msg.time;
+ }
+ return offset_minutes_;
+ }
+#endif
+};
+
+// Thread id
+class t_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &msg, const std::tm &, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::pad6(msg.thread_id, dest);
+ }
+};
+
+// Current pid
+class pid_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &, const std::tm &, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::append_int(details::os::pid(), dest);
+ }
+};
+
+// message counter formatter
+class i_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &msg, const std::tm &, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::pad6(msg.msg_id, dest);
+ }
+};
+
+class v_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &msg, const std::tm &, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::append_buf(msg.raw, dest);
+ }
+};
+
+class ch_formatter SPDLOG_FINAL : public flag_formatter
+{
+public:
+ explicit ch_formatter(char ch)
+ : ch_(ch)
+ {
+ }
+ void format(const details::log_msg &, const std::tm &, fmt::memory_buffer &dest) override
+ {
+ dest.push_back(ch_);
+ }
+
+private:
+ char ch_;
+};
+
+// aggregate user chars to display as is
+class aggregate_formatter SPDLOG_FINAL : public flag_formatter
+{
+public:
+ aggregate_formatter() = default;
+
+ void add_ch(char ch)
+ {
+ str_ += ch;
+ }
+ void format(const details::log_msg &, const std::tm &, fmt::memory_buffer &dest) override
+ {
+ fmt_helper::append_str(str_, dest);
+ }
+
+private:
+ std::string str_;
+};
+
+// mark the color range. expect it to be in the form of "%^colored text%$"
+class color_start_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &msg, const std::tm &, fmt::memory_buffer &dest) override
+ {
+ msg.color_range_start = dest.size();
+ }
+};
+class color_stop_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &msg, const std::tm &, fmt::memory_buffer &dest) override
+ {
+ msg.color_range_end = dest.size();
+ }
+};
+
+// Full info formatter
+// pattern: [%Y-%m-%d %H:%M:%S.%e] [%n] [%l] %v
+class full_formatter SPDLOG_FINAL : public flag_formatter
+{
+ void format(const details::log_msg &msg, const std::tm &tm_time, fmt::memory_buffer &dest) override
+ {
+ using namespace std::chrono;
+#ifndef SPDLOG_NO_DATETIME
+
+ // cache the date/time part for the next second.
+ auto duration = msg.time.time_since_epoch();
+ auto secs = duration_cast<seconds>(duration);
+
+ if (cache_timestamp_ != secs || cached_datetime_.size() == 0)
+ {
+ cached_datetime_.resize(0);
+ cached_datetime_.push_back('[');
+ fmt_helper::append_int(tm_time.tm_year + 1900, cached_datetime_);
+ cached_datetime_.push_back('-');
+
+ fmt_helper::pad2(tm_time.tm_mon + 1, cached_datetime_);
+ cached_datetime_.push_back('-');
+
+ fmt_helper::pad2(tm_time.tm_mday, cached_datetime_);
+ cached_datetime_.push_back(' ');
+
+ fmt_helper::pad2(tm_time.tm_hour, cached_datetime_);
+ cached_datetime_.push_back(':');
+
+ fmt_helper::pad2(tm_time.tm_min, cached_datetime_);
+ cached_datetime_.push_back(':');
+
+ fmt_helper::pad2(tm_time.tm_sec, cached_datetime_);
+ cached_datetime_.push_back('.');
+
+ cache_timestamp_ = secs;
+ }
+ fmt_helper::append_buf(cached_datetime_, dest);
+
+ auto millis = fmt_helper::time_fraction<milliseconds>(msg.time);
+ fmt_helper::pad3(static_cast<int>(millis.count()), dest);
+ dest.push_back(']');
+ dest.push_back(' ');
+
+#else // no datetime needed
+ (void)tm_time;
+#endif
+
+#ifndef SPDLOG_NO_NAME
+ dest.push_back('[');
+ fmt_helper::append_str(*msg.logger_name, dest);
+ dest.push_back(']');
+ dest.push_back(' ');
+#endif
+
+ dest.push_back('[');
+ // wrap the level name with color
+ msg.color_range_start = dest.size();
+ fmt_helper::append_c_str(level::to_c_str(msg.level), dest);
+ msg.color_range_end = dest.size();
+ dest.push_back(']');
+ dest.push_back(' ');
+ fmt_helper::append_buf(msg.raw, dest);
+ }
+
+private:
+ std::chrono::seconds cache_timestamp_{0};
+ fmt::basic_memory_buffer<char, 128> cached_datetime_;
+};
+
+} // namespace details
+
+class pattern_formatter SPDLOG_FINAL : public formatter
+{
+public:
+ explicit pattern_formatter(
+ std::string pattern, pattern_time_type time_type = pattern_time_type::local, std::string eol = spdlog::details::os::default_eol)
+ : pattern_(std::move(pattern))
+ , eol_(std::move(eol))
+ , pattern_time_type_(time_type)
+ , last_log_secs_(0)
+ {
+ std::memset(&cached_tm_, 0, sizeof(cached_tm_));
+ compile_pattern_(pattern_);
+ }
+
+ pattern_formatter(const pattern_formatter &other) = delete;
+ pattern_formatter &operator=(const pattern_formatter &other) = delete;
+
+ virtual std::unique_ptr<formatter> clone() const override
+ {
+ return std::unique_ptr<formatter>(new pattern_formatter(pattern_, pattern_time_type_, eol_));
+ }
+
+ void format(const details::log_msg &msg, fmt::memory_buffer &dest) override
+ {
+#ifndef SPDLOG_NO_DATETIME
+ auto secs = std::chrono::duration_cast<std::chrono::seconds>(msg.time.time_since_epoch());
+ if (secs != last_log_secs_)
+ {
+ cached_tm_ = get_time_(msg);
+ last_log_secs_ = secs;
+ }
+#endif
+ for (auto &f : formatters_)
+ {
+ f->format(msg, cached_tm_, dest);
+ }
+ // write eol
+ details::fmt_helper::append_str(eol_, dest);
+ }
+
+private:
+ std::string pattern_;
+ std::string eol_;
+ pattern_time_type pattern_time_type_;
+ std::tm cached_tm_;
+ std::chrono::seconds last_log_secs_;
+
+ std::vector<std::unique_ptr<details::flag_formatter>> formatters_;
+
+ std::tm get_time_(const details::log_msg &msg)
+ {
+ if (pattern_time_type_ == pattern_time_type::local)
+ {
+ return details::os::localtime(log_clock::to_time_t(msg.time));
+ }
+ return details::os::gmtime(log_clock::to_time_t(msg.time));
+ }
+
+ void handle_flag_(char flag)
+ {
+ switch (flag)
+ {
+ // logger name
+ case 'n':
+ formatters_.emplace_back(new details::name_formatter());
+ break;
+
+ case 'l':
+ formatters_.emplace_back(new details::level_formatter());
+ break;
+
+ case 'L':
+ formatters_.emplace_back(new details::short_level_formatter());
+ break;
+
+ case ('t'):
+ formatters_.emplace_back(new details::t_formatter());
+ break;
+
+ case ('v'):
+ formatters_.emplace_back(new details::v_formatter());
+ break;
+
+ case ('a'):
+ formatters_.emplace_back(new details::a_formatter());
+ break;
+
+ case ('A'):
+ formatters_.emplace_back(new details::A_formatter());
+ break;
+
+ case ('b'):
+ case ('h'):
+ formatters_.emplace_back(new details::b_formatter());
+ break;
+
+ case ('B'):
+ formatters_.emplace_back(new details::B_formatter());
+ break;
+ case ('c'):
+ formatters_.emplace_back(new details::c_formatter());
+ break;
+
+ case ('C'):
+ formatters_.emplace_back(new details::C_formatter());
+ break;
+
+ case ('Y'):
+ formatters_.emplace_back(new details::Y_formatter());
+ break;
+
+ case ('D'):
+ case ('x'):
+ formatters_.emplace_back(new details::D_formatter());
+ break;
+
+ case ('m'):
+ formatters_.emplace_back(new details::m_formatter());
+ break;
+
+ case ('d'):
+ formatters_.emplace_back(new details::d_formatter());
+ break;
+
+ case ('H'):
+ formatters_.emplace_back(new details::H_formatter());
+ break;
+
+ case ('I'):
+ formatters_.emplace_back(new details::I_formatter());
+ break;
+
+ case ('M'):
+ formatters_.emplace_back(new details::M_formatter());
+ break;
+
+ case ('S'):
+ formatters_.emplace_back(new details::S_formatter());
+ break;
+
+ case ('e'):
+ formatters_.emplace_back(new details::e_formatter());
+ break;
+
+ case ('f'):
+ formatters_.emplace_back(new details::f_formatter());
+ break;
+ case ('F'):
+ formatters_.emplace_back(new details::F_formatter());
+ break;
+
+ case ('E'):
+ formatters_.emplace_back(new details::E_formatter());
+ break;
+
+ case ('p'):
+ formatters_.emplace_back(new details::p_formatter());
+ break;
+
+ case ('r'):
+ formatters_.emplace_back(new details::r_formatter());
+ break;
+
+ case ('R'):
+ formatters_.emplace_back(new details::R_formatter());
+ break;
+
+ case ('T'):
+ case ('X'):
+ formatters_.emplace_back(new details::T_formatter());
+ break;
+
+ case ('z'):
+ formatters_.emplace_back(new details::z_formatter());
+ break;
+
+ case ('+'):
+ formatters_.emplace_back(new details::full_formatter());
+ break;
+
+ case ('P'):
+ formatters_.emplace_back(new details::pid_formatter());
+ break;
+
+ case ('i'):
+ formatters_.emplace_back(new details::i_formatter());
+ break;
+
+ case ('^'):
+ formatters_.emplace_back(new details::color_start_formatter());
+ break;
+
+ case ('$'):
+ formatters_.emplace_back(new details::color_stop_formatter());
+ break;
+
+ default: // Unknown flag appears as is
+ formatters_.emplace_back(new details::ch_formatter('%'));
+ formatters_.emplace_back(new details::ch_formatter(flag));
+ break;
+ }
+ }
+
+ void compile_pattern_(const std::string &pattern)
+ {
+ auto end = pattern.end();
+ std::unique_ptr<details::aggregate_formatter> user_chars;
+ formatters_.clear();
+ for (auto it = pattern.begin(); it != end; ++it)
+ {
+ if (*it == '%')
+ {
+ if (user_chars) // append user chars found so far
+ {
+ formatters_.push_back(std::move(user_chars));
+ }
+ // if(
+ if (++it != end)
+ {
+ handle_flag_(*it);
+ }
+ else
+ {
+ break;
+ }
+ }
+ else // chars not following the % sign should be displayed as is
+ {
+ if (!user_chars)
+ {
+ user_chars = std::unique_ptr<details::aggregate_formatter>(new details::aggregate_formatter());
+ }
+ user_chars->add_ch(*it);
+ }
+ }
+ if (user_chars) // append raw chars found so far
+ {
+ formatters_.push_back(std::move(user_chars));
+ }
+ }
+};
+} // namespace spdlog
diff --git a/src/include/spdlog/details/periodic_worker.h b/src/include/spdlog/details/periodic_worker.h
new file mode 100644
index 0000000000000000000000000000000000000000..acc13117cbd540dd345ca4984a55dd0da5c1d512
--- /dev/null
+++ b/src/include/spdlog/details/periodic_worker.h
@@ -0,0 +1,71 @@
+
+//
+// Copyright(c) 2018 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+// periodic worker thread - periodically executes the given callback function.
+//
+// RAII over the owned thread:
+// creates the thread on construction.
+// stops and joins the thread on destruction.
+
+#include <chrono>
+#include <condition_variable>
+#include <functional>
+#include <mutex>
+#include <thread>
+namespace spdlog {
+namespace details {
+
+class periodic_worker
+{
+public:
+ periodic_worker(std::function<void()> callback_fun, std::chrono::seconds interval)
+ {
+ active_ = (interval > std::chrono::seconds::zero());
+ if (!active_)
+ {
+ return;
+ }
+
+ worker_thread_ = std::thread([this, callback_fun, interval]() {
+ for (;;)
+ {
+ std::unique_lock<std::mutex> lock(this->mutex_);
+ if (this->cv_.wait_for(lock, interval, [this] { return !this->active_; }))
+ {
+ return; // active_ == false, so exit this thread
+ }
+ callback_fun();
+ }
+ });
+ }
+
+ periodic_worker(const periodic_worker &) = delete;
+ periodic_worker &operator=(const periodic_worker &) = delete;
+
+ // stop the worker thread and join it
+ ~periodic_worker()
+ {
+ if (worker_thread_.joinable())
+ {
+ {
+ std::lock_guard<std::mutex> lock(mutex_);
+ active_ = false;
+ }
+ cv_.notify_one();
+ worker_thread_.join();
+ }
+ }
+
+private:
+ bool active_;
+ std::thread worker_thread_;
+ std::mutex mutex_;
+ std::condition_variable cv_;
+};
+} // namespace details
+} // namespace spdlog
diff --git a/src/include/spdlog/details/registry.h b/src/include/spdlog/details/registry.h
new file mode 100644
index 0000000000000000000000000000000000000000..b3db19a2f01f4283a0a3c4d8166d9df6a6efc9dc
--- /dev/null
+++ b/src/include/spdlog/details/registry.h
@@ -0,0 +1,218 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+// Loggers registy of unique name->logger pointer
+// An attempt to create a logger with an already existing name will be ignored
+// If user requests a non existing logger, nullptr will be returned
+// This class is thread safe
+
+#include "spdlog/common.h"
+#include "spdlog/details/periodic_worker.h"
+#include "spdlog/logger.h"
+
+#include <chrono>
+#include <functional>
+#include <memory>
+#include <string>
+#include <unordered_map>
+
+namespace spdlog {
+namespace details {
+class thread_pool;
+
+class registry
+{
+public:
+ registry(const registry &) = delete;
+ registry &operator=(const registry &) = delete;
+
+ void register_logger(std::shared_ptr<logger> new_logger)
+ {
+ std::lock_guard<std::mutex> lock(logger_map_mutex_);
+ auto logger_name = new_logger->name();
+ throw_if_exists_(logger_name);
+ loggers_[logger_name] = new_logger;
+ }
+
+ void register_and_init(std::shared_ptr<logger> new_logger)
+ {
+ std::lock_guard<std::mutex> lock(logger_map_mutex_);
+ auto logger_name = new_logger->name();
+ throw_if_exists_(logger_name);
+
+ // set the global formatter pattern
+ new_logger->set_formatter(formatter_->clone());
+
+ if (err_handler_)
+ {
+ new_logger->set_error_handler(err_handler_);
+ }
+
+ new_logger->set_level(level_);
+ new_logger->flush_on(flush_level_);
+
+ // add to registry
+ loggers_[logger_name] = new_logger;
+ }
+
+ std::shared_ptr<logger> get(const std::string &logger_name)
+ {
+ std::lock_guard<std::mutex> lock(logger_map_mutex_);
+ auto found = loggers_.find(logger_name);
+ return found == loggers_.end() ? nullptr : found->second;
+ }
+
+ void set_tp(std::shared_ptr<thread_pool> tp)
+ {
+ std::lock_guard<std::recursive_mutex> lock(tp_mutex_);
+ tp_ = std::move(tp);
+ }
+
+ std::shared_ptr<thread_pool> get_tp()
+ {
+ std::lock_guard<std::recursive_mutex> lock(tp_mutex_);
+ return tp_;
+ }
+
+ // Set global formatter. Each sink in each logger will get a clone of this object
+ void set_formatter(std::unique_ptr<formatter> formatter)
+ {
+ std::lock_guard<std::mutex> lock(logger_map_mutex_);
+ formatter_ = std::move(formatter);
+ for (auto &l : loggers_)
+ {
+ l.second->set_formatter(formatter_->clone());
+ }
+ }
+
+ void set_level(level::level_enum log_level)
+ {
+ std::lock_guard<std::mutex> lock(logger_map_mutex_);
+ for (auto &l : loggers_)
+ {
+ l.second->set_level(log_level);
+ }
+ level_ = log_level;
+ }
+
+ void flush_on(level::level_enum log_level)
+ {
+ std::lock_guard<std::mutex> lock(logger_map_mutex_);
+ for (auto &l : loggers_)
+ {
+ l.second->flush_on(log_level);
+ }
+ flush_level_ = log_level;
+ }
+
+ void flush_every(std::chrono::seconds interval)
+ {
+ std::lock_guard<std::mutex> lock(flusher_mutex_);
+ std::function<void()> clbk(std::bind(®istry::flush_all, this));
+ periodic_flusher_.reset(new periodic_worker(clbk, interval));
+ }
+
+ void set_error_handler(log_err_handler handler)
+ {
+ std::lock_guard<std::mutex> lock(logger_map_mutex_);
+ for (auto &l : loggers_)
+ {
+ l.second->set_error_handler(handler);
+ }
+ err_handler_ = handler;
+ }
+
+ void apply_all(std::function<void(std::shared_ptr<logger>)> fun)
+ {
+ std::lock_guard<std::mutex> lock(logger_map_mutex_);
+ for (auto &l : loggers_)
+ {
+ fun(l.second);
+ }
+ }
+
+ void flush_all()
+ {
+ std::lock_guard<std::mutex> lock(logger_map_mutex_);
+ for (auto &l : loggers_)
+ {
+ l.second->flush();
+ }
+ }
+
+ void drop(const std::string &logger_name)
+ {
+ std::lock_guard<std::mutex> lock(logger_map_mutex_);
+ loggers_.erase(logger_name);
+ }
+
+ void drop_all()
+ {
+ std::lock_guard<std::mutex> lock(logger_map_mutex_);
+ loggers_.clear();
+ }
+
+ // clean all reasources and threads started by the registry
+ void shutdown()
+ {
+ {
+ std::lock_guard<std::mutex> lock(flusher_mutex_);
+ periodic_flusher_.reset();
+ }
+
+ drop_all();
+
+ {
+ std::lock_guard<std::recursive_mutex> lock(tp_mutex_);
+ tp_.reset();
+ }
+ }
+
+ std::recursive_mutex &tp_mutex()
+ {
+ return tp_mutex_;
+ }
+
+ static registry &instance()
+ {
+ static registry s_instance;
+ return s_instance;
+ }
+
+private:
+ registry()
+ : formatter_(new pattern_formatter("%+"))
+ {
+ }
+
+ ~registry()
+ {
+ /*std::lock_guard<std::mutex> lock(flusher_mutex_);
+ periodic_flusher_.reset();*/
+ }
+
+ void throw_if_exists_(const std::string &logger_name)
+ {
+ if (loggers_.find(logger_name) != loggers_.end())
+ {
+ throw spdlog_ex("logger with name '" + logger_name + "' already exists");
+ }
+ }
+
+ std::mutex logger_map_mutex_, flusher_mutex_;
+ std::recursive_mutex tp_mutex_;
+ std::unordered_map<std::string, std::shared_ptr<logger>> loggers_;
+ std::unique_ptr<formatter> formatter_;
+ level::level_enum level_ = level::info;
+ level::level_enum flush_level_ = level::off;
+ log_err_handler err_handler_;
+ std::shared_ptr<thread_pool> tp_;
+ std::unique_ptr<periodic_worker> periodic_flusher_;
+};
+
+} // namespace details
+} // namespace spdlog
diff --git a/src/include/spdlog/details/thread_pool.h b/src/include/spdlog/details/thread_pool.h
new file mode 100644
index 0000000000000000000000000000000000000000..2620a19e1fa30f0ab8f3914b5e67ca94d71d6569
--- /dev/null
+++ b/src/include/spdlog/details/thread_pool.h
@@ -0,0 +1,220 @@
+#pragma once
+
+#include "spdlog/details/log_msg.h"
+#include "spdlog/details/mpmc_blocking_q.h"
+#include "spdlog/details/os.h"
+
+#include <chrono>
+#include <memory>
+#include <thread>
+#include <vector>
+
+namespace spdlog {
+namespace details {
+
+using async_logger_ptr = std::shared_ptr<spdlog::async_logger>;
+
+enum class async_msg_type
+{
+ log,
+ flush,
+ terminate
+};
+
+// Async msg to move to/from the queue
+// Movable only. should never be copied
+struct async_msg
+{
+ async_msg_type msg_type;
+ level::level_enum level;
+ log_clock::time_point time;
+ size_t thread_id;
+ fmt::basic_memory_buffer<char, 176> raw;
+
+ size_t msg_id;
+ async_logger_ptr worker_ptr;
+
+ async_msg() = default;
+ ~async_msg() = default;
+
+ // should only be moved in or out of the queue..
+ async_msg(const async_msg &) = delete;
+
+// support for vs2013 move
+#if defined(_MSC_VER) && _MSC_VER <= 1800
+ async_msg(async_msg &&other) SPDLOG_NOEXCEPT : msg_type(other.msg_type),
+ level(other.level),
+ time(other.time),
+ thread_id(other.thread_id),
+ raw(move(other.raw)),
+ msg_id(other.msg_id),
+ worker_ptr(std::move(other.worker_ptr))
+ {
+ }
+
+ async_msg &operator=(async_msg &&other) SPDLOG_NOEXCEPT
+ {
+ msg_type = other.msg_type;
+ level = other.level;
+ time = other.time;
+ thread_id = other.thread_id;
+ raw = std::move(other.raw);
+ msg_id = other.msg_id;
+ worker_ptr = std::move(other.worker_ptr);
+ return *this;
+ }
+#else // (_MSC_VER) && _MSC_VER <= 1800
+ async_msg(async_msg &&other) = default;
+ async_msg &operator=(async_msg &&other) = default;
+#endif
+
+ // construct from log_msg with given type
+ async_msg(async_logger_ptr &&worker, async_msg_type the_type, details::log_msg &&m)
+ : msg_type(the_type)
+ , level(m.level)
+ , time(m.time)
+ , thread_id(m.thread_id)
+ , msg_id(m.msg_id)
+ , worker_ptr(std::forward<async_logger_ptr>(worker))
+ {
+ fmt_helper::append_buf(m.raw, raw);
+ }
+
+ async_msg(async_logger_ptr &&worker, async_msg_type the_type)
+ : async_msg(std::forward<async_logger_ptr>(worker), the_type, details::log_msg())
+ {
+ }
+
+ explicit async_msg(async_msg_type the_type)
+ : async_msg(nullptr, the_type, details::log_msg())
+ {
+ }
+
+ // copy into log_msg
+ void to_log_msg(log_msg &msg)
+ {
+ msg.logger_name = &worker_ptr->name();
+ msg.level = level;
+ msg.time = time;
+ msg.thread_id = thread_id;
+ fmt_helper::append_buf(raw, msg.raw);
+ msg.msg_id = msg_id;
+ msg.color_range_start = 0;
+ msg.color_range_end = 0;
+ }
+};
+
+class thread_pool
+{
+public:
+ using item_type = async_msg;
+ using q_type = details::mpmc_blocking_queue<item_type>;
+
+ thread_pool(size_t q_max_items, size_t threads_n)
+ : q_(q_max_items)
+ {
+ // std::cout << "thread_pool() q_size_bytes: " << q_size_bytes <<
+ // "\tthreads_n: " << threads_n << std::endl;
+ if (threads_n == 0 || threads_n > 1000)
+ {
+ throw spdlog_ex("spdlog::thread_pool(): invalid threads_n param (valid "
+ "range is 1-1000)");
+ }
+ for (size_t i = 0; i < threads_n; i++)
+ {
+ threads_.emplace_back(std::bind(&thread_pool::worker_loop_, this));
+ }
+ }
+
+ // message all threads to terminate gracefully join them
+ ~thread_pool()
+ {
+ try
+ {
+ for (size_t i = 0; i < threads_.size(); i++)
+ {
+ post_async_msg_(async_msg(async_msg_type::terminate), async_overflow_policy::block);
+ }
+
+ for (auto &t : threads_)
+ {
+ t.join();
+ }
+ }
+ catch (...)
+ {
+ }
+ }
+
+ void post_log(async_logger_ptr &&worker_ptr, details::log_msg &&msg, async_overflow_policy overflow_policy)
+ {
+ async_msg async_m(std::forward<async_logger_ptr>(worker_ptr), async_msg_type::log, std::forward<log_msg>(msg));
+ post_async_msg_(std::move(async_m), overflow_policy);
+ }
+
+ void post_flush(async_logger_ptr &&worker_ptr, async_overflow_policy overflow_policy)
+ {
+ post_async_msg_(async_msg(std::move(worker_ptr), async_msg_type::flush), overflow_policy);
+ }
+
+private:
+ q_type q_;
+
+ std::vector<std::thread> threads_;
+
+ void post_async_msg_(async_msg &&new_msg, async_overflow_policy overflow_policy)
+ {
+ if (overflow_policy == async_overflow_policy::block)
+ {
+ q_.enqueue(std::move(new_msg));
+ }
+ else
+ {
+ q_.enqueue_nowait(std::move(new_msg));
+ }
+ }
+
+ void worker_loop_()
+ {
+ while (process_next_msg_()) {};
+ }
+
+ // process next message in the queue
+ // return true if this thread should still be active (while no terminate msg
+ // was received)
+ bool process_next_msg_()
+ {
+ async_msg incoming_async_msg;
+ bool dequeued = q_.dequeue_for(incoming_async_msg, std::chrono::seconds(10));
+ if (!dequeued)
+ {
+ return true;
+ }
+
+ switch (incoming_async_msg.msg_type)
+ {
+ case async_msg_type::flush:
+ {
+ incoming_async_msg.worker_ptr->backend_flush_();
+ return true;
+ }
+
+ case async_msg_type::terminate:
+ {
+ return false;
+ }
+
+ default:
+ {
+ log_msg msg;
+ incoming_async_msg.to_log_msg(msg);
+ incoming_async_msg.worker_ptr->backend_log_(msg);
+ return true;
+ }
+ }
+ return true; // should not be reached
+ }
+};
+
+} // namespace details
+} // namespace spdlog
\ No newline at end of file
diff --git a/src/include/spdlog/fmt/bundled/LICENSE.rst b/src/include/spdlog/fmt/bundled/LICENSE.rst
new file mode 100644
index 0000000000000000000000000000000000000000..eb6be6503e93cc384f912841c7c7cbc65e5aa709
--- /dev/null
+++ b/src/include/spdlog/fmt/bundled/LICENSE.rst
@@ -0,0 +1,23 @@
+Copyright (c) 2012 - 2016, Victor Zverovich
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/src/include/spdlog/fmt/bundled/colors.h b/src/include/spdlog/fmt/bundled/colors.h
new file mode 100644
index 0000000000000000000000000000000000000000..003a6679ee7d34cf7d9d64cb68f0da093d8b6a1d
--- /dev/null
+++ b/src/include/spdlog/fmt/bundled/colors.h
@@ -0,0 +1,257 @@
+// Formatting library for C++ - the core API
+//
+// Copyright (c) 2012 - present, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+//
+// Copyright (c) 2018 - present, Remotion (Igor Schulz)
+// All Rights Reserved
+// {fmt} support for rgb color output.
+
+#ifndef FMT_COLORS_H_
+#define FMT_COLORS_H_
+
+#include "format.h"
+
+FMT_BEGIN_NAMESPACE
+
+// rgb is a struct for red, green and blue colors.
+// We use rgb as name because some editors will show it as color direct in the
+// editor.
+struct rgb
+{
+ FMT_CONSTEXPR_DECL rgb()
+ : r(0)
+ , g(0)
+ , b(0)
+ {
+ }
+ FMT_CONSTEXPR_DECL rgb(uint8_t r_, uint8_t g_, uint8_t b_)
+ : r(r_)
+ , g(g_)
+ , b(b_)
+ {
+ }
+ FMT_CONSTEXPR_DECL rgb(uint32_t hex)
+ : r((hex >> 16) & 0xFF)
+ , g((hex >> 8) & 0xFF)
+ , b((hex)&0xFF)
+ {
+ }
+ uint8_t r;
+ uint8_t g;
+ uint8_t b;
+};
+
+namespace internal {
+
+FMT_CONSTEXPR inline void to_esc(uint8_t c, char out[], int offset)
+{
+ out[offset + 0] = static_cast<char>('0' + c / 100);
+ out[offset + 1] = static_cast<char>('0' + c / 10 % 10);
+ out[offset + 2] = static_cast<char>('0' + c % 10);
+}
+
+} // namespace internal
+
+FMT_FUNC void vprint_rgb(rgb fd, string_view format, format_args args)
+{
+ char escape_fd[] = "\x1b[38;2;000;000;000m";
+ static FMT_CONSTEXPR_DECL const char RESET_COLOR[] = "\x1b[0m";
+ internal::to_esc(fd.r, escape_fd, 7);
+ internal::to_esc(fd.g, escape_fd, 11);
+ internal::to_esc(fd.b, escape_fd, 15);
+
+ std::fputs(escape_fd, stdout);
+ vprint(format, args);
+ std::fputs(RESET_COLOR, stdout);
+}
+
+FMT_FUNC void vprint_rgb(rgb fd, rgb bg, string_view format, format_args args)
+{
+ char escape_fd[] = "\x1b[38;2;000;000;000m"; // foreground color
+ char escape_bg[] = "\x1b[48;2;000;000;000m"; // background color
+ static FMT_CONSTEXPR_DECL const char RESET_COLOR[] = "\x1b[0m";
+ internal::to_esc(fd.r, escape_fd, 7);
+ internal::to_esc(fd.g, escape_fd, 11);
+ internal::to_esc(fd.b, escape_fd, 15);
+
+ internal::to_esc(bg.r, escape_bg, 7);
+ internal::to_esc(bg.g, escape_bg, 11);
+ internal::to_esc(bg.b, escape_bg, 15);
+
+ std::fputs(escape_fd, stdout);
+ std::fputs(escape_bg, stdout);
+ vprint(format, args);
+ std::fputs(RESET_COLOR, stdout);
+}
+
+template<typename... Args>
+inline void print_rgb(rgb fd, string_view format_str, const Args &... args)
+{
+ vprint_rgb(fd, format_str, make_format_args(args...));
+}
+
+// rgb foreground color
+template<typename... Args>
+inline void print(rgb fd, string_view format_str, const Args &... args)
+{
+ vprint_rgb(fd, format_str, make_format_args(args...));
+}
+
+// rgb foreground color and background color
+template<typename... Args>
+inline void print(rgb fd, rgb bg, string_view format_str, const Args &... args)
+{
+ vprint_rgb(fd, bg, format_str, make_format_args(args...));
+}
+
+enum class color : uint32_t
+{
+ alice_blue = 0xF0F8FF, // rgb(240,248,255)
+ antique_white = 0xFAEBD7, // rgb(250,235,215)
+ aqua = 0x00FFFF, // rgb(0,255,255)
+ aquamarine = 0x7FFFD4, // rgb(127,255,212)
+ azure = 0xF0FFFF, // rgb(240,255,255)
+ beige = 0xF5F5DC, // rgb(245,245,220)
+ bisque = 0xFFE4C4, // rgb(255,228,196)
+ black = 0x000000, // rgb(0,0,0)
+ blanched_almond = 0xFFEBCD, // rgb(255,235,205)
+ blue = 0x0000FF, // rgb(0,0,255)
+ blue_violet = 0x8A2BE2, // rgb(138,43,226)
+ brown = 0xA52A2A, // rgb(165,42,42)
+ burly_wood = 0xDEB887, // rgb(222,184,135)
+ cadet_blue = 0x5F9EA0, // rgb(95,158,160)
+ chartreuse = 0x7FFF00, // rgb(127,255,0)
+ chocolate = 0xD2691E, // rgb(210,105,30)
+ coral = 0xFF7F50, // rgb(255,127,80)
+ cornflower_blue = 0x6495ED, // rgb(100,149,237)
+ cornsilk = 0xFFF8DC, // rgb(255,248,220)
+ crimson = 0xDC143C, // rgb(220,20,60)
+ cyan = 0x00FFFF, // rgb(0,255,255)
+ dark_blue = 0x00008B, // rgb(0,0,139)
+ dark_cyan = 0x008B8B, // rgb(0,139,139)
+ dark_golden_rod = 0xB8860B, // rgb(184,134,11)
+ dark_gray = 0xA9A9A9, // rgb(169,169,169)
+ dark_green = 0x006400, // rgb(0,100,0)
+ dark_khaki = 0xBDB76B, // rgb(189,183,107)
+ dark_magenta = 0x8B008B, // rgb(139,0,139)
+ dark_olive_green = 0x556B2F, // rgb(85,107,47)
+ dark_orange = 0xFF8C00, // rgb(255,140,0)
+ dark_orchid = 0x9932CC, // rgb(153,50,204)
+ dark_red = 0x8B0000, // rgb(139,0,0)
+ dark_salmon = 0xE9967A, // rgb(233,150,122)
+ dark_sea_green = 0x8FBC8F, // rgb(143,188,143)
+ dark_slate_blue = 0x483D8B, // rgb(72,61,139)
+ dark_slate_gray = 0x2F4F4F, // rgb(47,79,79)
+ dark_turquoise = 0x00CED1, // rgb(0,206,209)
+ dark_violet = 0x9400D3, // rgb(148,0,211)
+ deep_pink = 0xFF1493, // rgb(255,20,147)
+ deep_sky_blue = 0x00BFFF, // rgb(0,191,255)
+ dim_gray = 0x696969, // rgb(105,105,105)
+ dodger_blue = 0x1E90FF, // rgb(30,144,255)
+ fire_brick = 0xB22222, // rgb(178,34,34)
+ floral_white = 0xFFFAF0, // rgb(255,250,240)
+ forest_green = 0x228B22, // rgb(34,139,34)
+ fuchsia = 0xFF00FF, // rgb(255,0,255)
+ gainsboro = 0xDCDCDC, // rgb(220,220,220)
+ ghost_white = 0xF8F8FF, // rgb(248,248,255)
+ gold = 0xFFD700, // rgb(255,215,0)
+ golden_rod = 0xDAA520, // rgb(218,165,32)
+ gray = 0x808080, // rgb(128,128,128)
+ green = 0x008000, // rgb(0,128,0)
+ green_yellow = 0xADFF2F, // rgb(173,255,47)
+ honey_dew = 0xF0FFF0, // rgb(240,255,240)
+ hot_pink = 0xFF69B4, // rgb(255,105,180)
+ indian_red = 0xCD5C5C, // rgb(205,92,92)
+ indigo = 0x4B0082, // rgb(75,0,130)
+ ivory = 0xFFFFF0, // rgb(255,255,240)
+ khaki = 0xF0E68C, // rgb(240,230,140)
+ lavender = 0xE6E6FA, // rgb(230,230,250)
+ lavender_blush = 0xFFF0F5, // rgb(255,240,245)
+ lawn_green = 0x7CFC00, // rgb(124,252,0)
+ lemon_chiffon = 0xFFFACD, // rgb(255,250,205)
+ light_blue = 0xADD8E6, // rgb(173,216,230)
+ light_coral = 0xF08080, // rgb(240,128,128)
+ light_cyan = 0xE0FFFF, // rgb(224,255,255)
+ light_golden_rod_yellow = 0xFAFAD2, // rgb(250,250,210)
+ light_gray = 0xD3D3D3, // rgb(211,211,211)
+ light_green = 0x90EE90, // rgb(144,238,144)
+ light_pink = 0xFFB6C1, // rgb(255,182,193)
+ light_salmon = 0xFFA07A, // rgb(255,160,122)
+ light_sea_green = 0x20B2AA, // rgb(32,178,170)
+ light_sky_blue = 0x87CEFA, // rgb(135,206,250)
+ light_slate_gray = 0x778899, // rgb(119,136,153)
+ light_steel_blue = 0xB0C4DE, // rgb(176,196,222)
+ light_yellow = 0xFFFFE0, // rgb(255,255,224)
+ lime = 0x00FF00, // rgb(0,255,0)
+ lime_green = 0x32CD32, // rgb(50,205,50)
+ linen = 0xFAF0E6, // rgb(250,240,230)
+ magenta = 0xFF00FF, // rgb(255,0,255)
+ maroon = 0x800000, // rgb(128,0,0)
+ medium_aqua_marine = 0x66CDAA, // rgb(102,205,170)
+ medium_blue = 0x0000CD, // rgb(0,0,205)
+ medium_orchid = 0xBA55D3, // rgb(186,85,211)
+ medium_purple = 0x9370DB, // rgb(147,112,219)
+ medium_sea_green = 0x3CB371, // rgb(60,179,113)
+ medium_slate_blue = 0x7B68EE, // rgb(123,104,238)
+ medium_spring_green = 0x00FA9A, // rgb(0,250,154)
+ medium_turquoise = 0x48D1CC, // rgb(72,209,204)
+ medium_violet_red = 0xC71585, // rgb(199,21,133)
+ midnight_blue = 0x191970, // rgb(25,25,112)
+ mint_cream = 0xF5FFFA, // rgb(245,255,250)
+ misty_rose = 0xFFE4E1, // rgb(255,228,225)
+ moccasin = 0xFFE4B5, // rgb(255,228,181)
+ navajo_white = 0xFFDEAD, // rgb(255,222,173)
+ navy = 0x000080, // rgb(0,0,128)
+ old_lace = 0xFDF5E6, // rgb(253,245,230)
+ olive = 0x808000, // rgb(128,128,0)
+ olive_drab = 0x6B8E23, // rgb(107,142,35)
+ orange = 0xFFA500, // rgb(255,165,0)
+ orange_red = 0xFF4500, // rgb(255,69,0)
+ orchid = 0xDA70D6, // rgb(218,112,214)
+ pale_golden_rod = 0xEEE8AA, // rgb(238,232,170)
+ pale_green = 0x98FB98, // rgb(152,251,152)
+ pale_turquoise = 0xAFEEEE, // rgb(175,238,238)
+ pale_violet_red = 0xDB7093, // rgb(219,112,147)
+ papaya_whip = 0xFFEFD5, // rgb(255,239,213)
+ peach_puff = 0xFFDAB9, // rgb(255,218,185)
+ peru = 0xCD853F, // rgb(205,133,63)
+ pink = 0xFFC0CB, // rgb(255,192,203)
+ plum = 0xDDA0DD, // rgb(221,160,221)
+ powder_blue = 0xB0E0E6, // rgb(176,224,230)
+ purple = 0x800080, // rgb(128,0,128)
+ rebecca_purple = 0x663399, // rgb(102,51,153)
+ red = 0xFF0000, // rgb(255,0,0)
+ rosy_brown = 0xBC8F8F, // rgb(188,143,143)
+ royal_blue = 0x4169E1, // rgb(65,105,225)
+ saddle_brown = 0x8B4513, // rgb(139,69,19)
+ salmon = 0xFA8072, // rgb(250,128,114)
+ sandy_brown = 0xF4A460, // rgb(244,164,96)
+ sea_green = 0x2E8B57, // rgb(46,139,87)
+ sea_shell = 0xFFF5EE, // rgb(255,245,238)
+ sienna = 0xA0522D, // rgb(160,82,45)
+ silver = 0xC0C0C0, // rgb(192,192,192)
+ sky_blue = 0x87CEEB, // rgb(135,206,235)
+ slate_blue = 0x6A5ACD, // rgb(106,90,205)
+ slate_gray = 0x708090, // rgb(112,128,144)
+ snow = 0xFFFAFA, // rgb(255,250,250)
+ spring_green = 0x00FF7F, // rgb(0,255,127)
+ steel_blue = 0x4682B4, // rgb(70,130,180)
+ tan = 0xD2B48C, // rgb(210,180,140)
+ teal = 0x008080, // rgb(0,128,128)
+ thistle = 0xD8BFD8, // rgb(216,191,216)
+ tomato = 0xFF6347, // rgb(255,99,71)
+ turquoise = 0x40E0D0, // rgb(64,224,208)
+ violet = 0xEE82EE, // rgb(238,130,238)
+ wheat = 0xF5DEB3, // rgb(245,222,179)
+ white = 0xFFFFFF, // rgb(255,255,255)
+ white_smoke = 0xF5F5F5, // rgb(245,245,245)
+ yellow = 0xFFFF00, // rgb(255,255,0)
+ yellow_green = 0x9ACD32, // rgb(154,205,50)
+}; // enum class colors
+
+FMT_END_NAMESPACE
+
+#endif // FMT_COLORS_H_
diff --git a/src/include/spdlog/fmt/bundled/core.h b/src/include/spdlog/fmt/bundled/core.h
new file mode 100644
index 0000000000000000000000000000000000000000..19273a67a0d7893ab15490f33a6f289dbb0c1b72
--- /dev/null
+++ b/src/include/spdlog/fmt/bundled/core.h
@@ -0,0 +1,1578 @@
+// Formatting library for C++ - the core API
+//
+// Copyright (c) 2012 - present, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#ifndef FMT_CORE_H_
+#define FMT_CORE_H_
+
+#include <cassert>
+#include <cstdio>
+#include <cstring>
+#include <iterator>
+#include <string>
+#include <type_traits>
+
+// The fmt library version in the form major * 10000 + minor * 100 + patch.
+#define FMT_VERSION 50100
+
+#ifdef __has_feature
+#define FMT_HAS_FEATURE(x) __has_feature(x)
+#else
+#define FMT_HAS_FEATURE(x) 0
+#endif
+
+#ifdef __has_include
+#define FMT_HAS_INCLUDE(x) __has_include(x)
+#else
+#define FMT_HAS_INCLUDE(x) 0
+#endif
+
+#ifdef __has_cpp_attribute
+#define FMT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x)
+#else
+#define FMT_HAS_CPP_ATTRIBUTE(x) 0
+#endif
+
+#if defined(__GNUC__) && !defined(__clang__)
+#define FMT_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
+#else
+#define FMT_GCC_VERSION 0
+#endif
+
+#if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__)
+#define FMT_HAS_GXX_CXX11 FMT_GCC_VERSION
+#else
+#define FMT_HAS_GXX_CXX11 0
+#endif
+
+#ifdef _MSC_VER
+#define FMT_MSC_VER _MSC_VER
+#else
+#define FMT_MSC_VER 0
+#endif
+
+// Check if relaxed c++14 constexpr is supported.
+// GCC doesn't allow throw in constexpr until version 6 (bug 67371).
+#ifndef FMT_USE_CONSTEXPR
+#define FMT_USE_CONSTEXPR \
+ (FMT_HAS_FEATURE(cxx_relaxed_constexpr) || FMT_MSC_VER >= 1910 || (FMT_GCC_VERSION >= 600 && __cplusplus >= 201402L))
+#endif
+#if FMT_USE_CONSTEXPR
+#define FMT_CONSTEXPR constexpr
+#define FMT_CONSTEXPR_DECL constexpr
+#else
+#define FMT_CONSTEXPR inline
+#define FMT_CONSTEXPR_DECL
+#endif
+
+#ifndef FMT_OVERRIDE
+#if FMT_HAS_FEATURE(cxx_override) || (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1900
+#define FMT_OVERRIDE override
+#else
+#define FMT_OVERRIDE
+#endif
+#endif
+
+#if FMT_HAS_FEATURE(cxx_explicit_conversions) || FMT_MSC_VER >= 1800
+#define FMT_EXPLICIT explicit
+#else
+#define FMT_EXPLICIT
+#endif
+
+#ifndef FMT_NULL
+#if FMT_HAS_FEATURE(cxx_nullptr) || (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1600
+#define FMT_NULL nullptr
+#define FMT_USE_NULLPTR 1
+#else
+#define FMT_NULL NULL
+#endif
+#endif
+
+#ifndef FMT_USE_NULLPTR
+#define FMT_USE_NULLPTR 0
+#endif
+
+#if FMT_HAS_CPP_ATTRIBUTE(noreturn)
+#define FMT_NORETURN [[noreturn]]
+#else
+#define FMT_NORETURN
+#endif
+
+// Check if exceptions are disabled.
+#if defined(__GNUC__) && !defined(__EXCEPTIONS)
+#define FMT_EXCEPTIONS 0
+#elif FMT_MSC_VER && !_HAS_EXCEPTIONS
+#define FMT_EXCEPTIONS 0
+#endif
+#ifndef FMT_EXCEPTIONS
+#define FMT_EXCEPTIONS 1
+#endif
+
+// Define FMT_USE_NOEXCEPT to make fmt use noexcept (C++11 feature).
+#ifndef FMT_USE_NOEXCEPT
+#define FMT_USE_NOEXCEPT 0
+#endif
+
+#if FMT_USE_NOEXCEPT || FMT_HAS_FEATURE(cxx_noexcept) || (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1900
+#define FMT_DETECTED_NOEXCEPT noexcept
+#else
+#define FMT_DETECTED_NOEXCEPT throw()
+#endif
+
+#ifndef FMT_NOEXCEPT
+#if FMT_EXCEPTIONS
+#define FMT_NOEXCEPT FMT_DETECTED_NOEXCEPT
+#else
+#define FMT_NOEXCEPT
+#endif
+#endif
+
+// This is needed because GCC still uses throw() in its headers when exceptions
+// are disabled.
+#if FMT_GCC_VERSION
+#define FMT_DTOR_NOEXCEPT FMT_DETECTED_NOEXCEPT
+#else
+#define FMT_DTOR_NOEXCEPT FMT_NOEXCEPT
+#endif
+
+#ifndef FMT_BEGIN_NAMESPACE
+#if FMT_HAS_FEATURE(cxx_inline_namespaces) || FMT_GCC_VERSION >= 404 || FMT_MSC_VER >= 1900
+#define FMT_INLINE_NAMESPACE inline namespace
+#define FMT_END_NAMESPACE \
+ } \
+ }
+#else
+#define FMT_INLINE_NAMESPACE namespace
+#define FMT_END_NAMESPACE \
+ } \
+ using namespace v5; \
+ }
+#endif
+#define FMT_BEGIN_NAMESPACE \
+ namespace fmt { \
+ FMT_INLINE_NAMESPACE v5 \
+ {
+#endif
+
+#if !defined(FMT_HEADER_ONLY) && defined(_WIN32)
+#ifdef FMT_EXPORT
+#define FMT_API __declspec(dllexport)
+#elif defined(FMT_SHARED)
+#define FMT_API __declspec(dllimport)
+#endif
+#endif
+#ifndef FMT_API
+#define FMT_API
+#endif
+
+#ifndef FMT_ASSERT
+#define FMT_ASSERT(condition, message) assert((condition) && message)
+#endif
+
+#define FMT_DELETED = delete
+
+// A macro to disallow the copy construction and assignment.
+#define FMT_DISALLOW_COPY_AND_ASSIGN(Type) \
+ Type(const Type &) FMT_DELETED; \
+ void operator=(const Type &) FMT_DELETED
+
+// libc++ supports string_view in pre-c++17.
+#if (FMT_HAS_INCLUDE(<string_view>) && (__cplusplus > 201402L || defined(_LIBCPP_VERSION))) || \
+ (defined(_MSVC_LANG) && _MSVC_LANG > 201402L && _MSC_VER >= 1910)
+#include <string_view>
+#define FMT_USE_STD_STRING_VIEW
+#elif (FMT_HAS_INCLUDE(<experimental / string_view>) && __cplusplus >= 201402L)
+#include <experimental/string_view>
+#define FMT_USE_EXPERIMENTAL_STRING_VIEW
+#endif
+
+// std::result_of is defined in <functional> in gcc 4.4.
+#if FMT_GCC_VERSION && FMT_GCC_VERSION <= 404
+#include <functional>
+#endif
+
+FMT_BEGIN_NAMESPACE
+
+namespace internal {
+
+// An implementation of declval for pre-C++11 compilers such as gcc 4.
+template<typename T>
+typename std::add_rvalue_reference<T>::type declval() FMT_NOEXCEPT;
+
+// Casts nonnegative integer to unsigned.
+template<typename Int>
+FMT_CONSTEXPR typename std::make_unsigned<Int>::type to_unsigned(Int value)
+{
+ FMT_ASSERT(value >= 0, "negative value");
+ return static_cast<typename std::make_unsigned<Int>::type>(value);
+}
+
+} // namespace internal
+
+/**
+ An implementation of ``std::basic_string_view`` for pre-C++17. It provides a
+ subset of the API. ``fmt::basic_string_view`` is used for format strings even
+ if ``std::string_view`` is available to prevent issues when a library is
+ compiled with a different ``-std`` option than the client code (which is not
+ recommended).
+ */
+template<typename Char>
+class basic_string_view
+{
+private:
+ const Char *data_;
+ size_t size_;
+
+public:
+ typedef Char char_type;
+ typedef const Char *iterator;
+
+// Standard basic_string_view type.
+#if defined(FMT_USE_STD_STRING_VIEW)
+ typedef std::basic_string_view<Char> type;
+#elif defined(FMT_USE_EXPERIMENTAL_STRING_VIEW)
+ typedef std::experimental::basic_string_view<Char> type;
+#else
+ struct type
+ {
+ const char *data() const
+ {
+ return FMT_NULL;
+ }
+ size_t size() const
+ {
+ return 0;
+ }
+ };
+#endif
+
+ FMT_CONSTEXPR basic_string_view() FMT_NOEXCEPT : data_(FMT_NULL), size_(0) {}
+
+ /** Constructs a string reference object from a C string and a size. */
+ FMT_CONSTEXPR basic_string_view(const Char *s, size_t count) FMT_NOEXCEPT : data_(s), size_(count) {}
+
+ /**
+ \rst
+ Constructs a string reference object from a C string computing
+ the size with ``std::char_traits<Char>::length``.
+ \endrst
+ */
+ basic_string_view(const Char *s)
+ : data_(s)
+ , size_(std::char_traits<Char>::length(s))
+ {
+ }
+
+ /** Constructs a string reference from a ``std::basic_string`` object. */
+ template<typename Alloc>
+ FMT_CONSTEXPR basic_string_view(const std::basic_string<Char, Alloc> &s) FMT_NOEXCEPT : data_(s.c_str()), size_(s.size())
+ {
+ }
+
+ FMT_CONSTEXPR basic_string_view(type s) FMT_NOEXCEPT : data_(s.data()), size_(s.size()) {}
+
+ /** Returns a pointer to the string data. */
+ const Char *data() const
+ {
+ return data_;
+ }
+
+ /** Returns the string size. */
+ FMT_CONSTEXPR size_t size() const
+ {
+ return size_;
+ }
+
+ FMT_CONSTEXPR iterator begin() const
+ {
+ return data_;
+ }
+ FMT_CONSTEXPR iterator end() const
+ {
+ return data_ + size_;
+ }
+
+ FMT_CONSTEXPR void remove_prefix(size_t n)
+ {
+ data_ += n;
+ size_ -= n;
+ }
+
+ // Lexicographically compare this string reference to other.
+ int compare(basic_string_view other) const
+ {
+ size_t str_size = size_ < other.size_ ? size_ : other.size_;
+ int result = std::char_traits<Char>::compare(data_, other.data_, str_size);
+ if (result == 0)
+ result = size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1);
+ return result;
+ }
+
+ friend bool operator==(basic_string_view lhs, basic_string_view rhs)
+ {
+ return lhs.compare(rhs) == 0;
+ }
+ friend bool operator!=(basic_string_view lhs, basic_string_view rhs)
+ {
+ return lhs.compare(rhs) != 0;
+ }
+ friend bool operator<(basic_string_view lhs, basic_string_view rhs)
+ {
+ return lhs.compare(rhs) < 0;
+ }
+ friend bool operator<=(basic_string_view lhs, basic_string_view rhs)
+ {
+ return lhs.compare(rhs) <= 0;
+ }
+ friend bool operator>(basic_string_view lhs, basic_string_view rhs)
+ {
+ return lhs.compare(rhs) > 0;
+ }
+ friend bool operator>=(basic_string_view lhs, basic_string_view rhs)
+ {
+ return lhs.compare(rhs) >= 0;
+ }
+};
+
+typedef basic_string_view<char> string_view;
+typedef basic_string_view<wchar_t> wstring_view;
+
+template<typename Context>
+class basic_format_arg;
+
+template<typename Context>
+class basic_format_args;
+
+// A formatter for objects of type T.
+template<typename T, typename Char = char, typename Enable = void>
+struct formatter;
+
+namespace internal {
+
+/** A contiguous memory buffer with an optional growing ability. */
+template<typename T>
+class basic_buffer
+{
+private:
+ FMT_DISALLOW_COPY_AND_ASSIGN(basic_buffer);
+
+ T *ptr_;
+ std::size_t size_;
+ std::size_t capacity_;
+
+protected:
+ basic_buffer(T *p = FMT_NULL, std::size_t sz = 0, std::size_t cap = 0) FMT_NOEXCEPT : ptr_(p), size_(sz), capacity_(cap) {}
+
+ /** Sets the buffer data and capacity. */
+ void set(T *buf_data, std::size_t buf_capacity) FMT_NOEXCEPT
+ {
+ ptr_ = buf_data;
+ capacity_ = buf_capacity;
+ }
+
+ /** Increases the buffer capacity to hold at least *capacity* elements. */
+ virtual void grow(std::size_t capacity) = 0;
+
+public:
+ typedef T value_type;
+ typedef const T &const_reference;
+
+ virtual ~basic_buffer() {}
+
+ T *begin() FMT_NOEXCEPT
+ {
+ return ptr_;
+ }
+ T *end() FMT_NOEXCEPT
+ {
+ return ptr_ + size_;
+ }
+
+ /** Returns the size of this buffer. */
+ std::size_t size() const FMT_NOEXCEPT
+ {
+ return size_;
+ }
+
+ /** Returns the capacity of this buffer. */
+ std::size_t capacity() const FMT_NOEXCEPT
+ {
+ return capacity_;
+ }
+
+ /** Returns a pointer to the buffer data. */
+ T *data() FMT_NOEXCEPT
+ {
+ return ptr_;
+ }
+
+ /** Returns a pointer to the buffer data. */
+ const T *data() const FMT_NOEXCEPT
+ {
+ return ptr_;
+ }
+
+ /**
+ Resizes the buffer. If T is a POD type new elements may not be initialized.
+ */
+ void resize(std::size_t new_size)
+ {
+ reserve(new_size);
+ size_ = new_size;
+ }
+
+ /** Reserves space to store at least *capacity* elements. */
+ void reserve(std::size_t new_capacity)
+ {
+ if (new_capacity > capacity_)
+ grow(new_capacity);
+ }
+
+ void push_back(const T &value)
+ {
+ reserve(size_ + 1);
+ ptr_[size_++] = value;
+ }
+
+ /** Appends data to the end of the buffer. */
+ template<typename U>
+ void append(const U *begin, const U *end);
+
+ T &operator[](std::size_t index)
+ {
+ return ptr_[index];
+ }
+ const T &operator[](std::size_t index) const
+ {
+ return ptr_[index];
+ }
+};
+
+typedef basic_buffer<char> buffer;
+typedef basic_buffer<wchar_t> wbuffer;
+
+// A container-backed buffer.
+template<typename Container>
+class container_buffer : public basic_buffer<typename Container::value_type>
+{
+private:
+ Container &container_;
+
+protected:
+ void grow(std::size_t capacity) FMT_OVERRIDE
+ {
+ container_.resize(capacity);
+ this->set(&container_[0], capacity);
+ }
+
+public:
+ explicit container_buffer(Container &c)
+ : basic_buffer<typename Container::value_type>(&c[0], c.size(), c.size())
+ , container_(c)
+ {
+ }
+};
+
+struct error_handler
+{
+ FMT_CONSTEXPR error_handler() {}
+ FMT_CONSTEXPR error_handler(const error_handler &) {}
+
+ // This function is intentionally not constexpr to give a compile-time error.
+ FMT_API void on_error(const char *message);
+};
+
+// Formatting of wide characters and strings into a narrow output is disallowed:
+// fmt::format("{}", L"test"); // error
+// To fix this, use a wide format string:
+// fmt::format(L"{}", L"test");
+template<typename Char>
+inline void require_wchar()
+{
+ static_assert(std::is_same<wchar_t, Char>::value, "formatting of wide characters into a narrow output is disallowed");
+}
+
+template<typename Char>
+struct named_arg_base;
+
+template<typename T, typename Char>
+struct named_arg;
+
+template<typename T>
+struct is_named_arg : std::false_type
+{
+};
+
+template<typename T, typename Char>
+struct is_named_arg<named_arg<T, Char>> : std::true_type
+{
+};
+
+enum type
+{
+ none_type,
+ named_arg_type,
+ // Integer types should go first,
+ int_type,
+ uint_type,
+ long_long_type,
+ ulong_long_type,
+ bool_type,
+ char_type,
+ last_integer_type = char_type,
+ // followed by floating-point types.
+ double_type,
+ long_double_type,
+ last_numeric_type = long_double_type,
+ cstring_type,
+ string_type,
+ pointer_type,
+ custom_type
+};
+
+FMT_CONSTEXPR bool is_integral(type t)
+{
+ FMT_ASSERT(t != internal::named_arg_type, "invalid argument type");
+ return t > internal::none_type && t <= internal::last_integer_type;
+}
+
+FMT_CONSTEXPR bool is_arithmetic(type t)
+{
+ FMT_ASSERT(t != internal::named_arg_type, "invalid argument type");
+ return t > internal::none_type && t <= internal::last_numeric_type;
+}
+
+template<typename T, typename Char, bool ENABLE = true>
+struct convert_to_int
+{
+ enum
+ {
+ value = !std::is_arithmetic<T>::value && std::is_convertible<T, int>::value
+ };
+};
+
+template<typename Char>
+struct string_value
+{
+ const Char *value;
+ std::size_t size;
+};
+
+template<typename Context>
+struct custom_value
+{
+ const void *value;
+ void (*format)(const void *arg, Context &ctx);
+};
+
+// A formatting argument value.
+template<typename Context>
+class value
+{
+public:
+ typedef typename Context::char_type char_type;
+
+ union
+ {
+ int int_value;
+ unsigned uint_value;
+ long long long_long_value;
+ unsigned long long ulong_long_value;
+ double double_value;
+ long double long_double_value;
+ const void *pointer;
+ string_value<char_type> string;
+ string_value<signed char> sstring;
+ string_value<unsigned char> ustring;
+ custom_value<Context> custom;
+ };
+
+ FMT_CONSTEXPR value(int val = 0)
+ : int_value(val)
+ {
+ }
+ value(unsigned val)
+ {
+ uint_value = val;
+ }
+ value(long long val)
+ {
+ long_long_value = val;
+ }
+ value(unsigned long long val)
+ {
+ ulong_long_value = val;
+ }
+ value(double val)
+ {
+ double_value = val;
+ }
+ value(long double val)
+ {
+ long_double_value = val;
+ }
+ value(const char_type *val)
+ {
+ string.value = val;
+ }
+ value(const signed char *val)
+ {
+ static_assert(std::is_same<char, char_type>::value, "incompatible string types");
+ sstring.value = val;
+ }
+ value(const unsigned char *val)
+ {
+ static_assert(std::is_same<char, char_type>::value, "incompatible string types");
+ ustring.value = val;
+ }
+ value(basic_string_view<char_type> val)
+ {
+ string.value = val.data();
+ string.size = val.size();
+ }
+ value(const void *val)
+ {
+ pointer = val;
+ }
+
+ template<typename T>
+ explicit value(const T &val)
+ {
+ custom.value = &val;
+ custom.format = &format_custom_arg<T>;
+ }
+
+ const named_arg_base<char_type> &as_named_arg()
+ {
+ return *static_cast<const named_arg_base<char_type> *>(pointer);
+ }
+
+private:
+ // Formats an argument of a custom type, such as a user-defined class.
+ template<typename T>
+ static void format_custom_arg(const void *arg, Context &ctx)
+ {
+ // Get the formatter type through the context to allow different contexts
+ // have different extension points, e.g. `formatter<T>` for `format` and
+ // `printf_formatter<T>` for `printf`.
+ typename Context::template formatter_type<T>::type f;
+ auto &&parse_ctx = ctx.parse_context();
+ parse_ctx.advance_to(f.parse(parse_ctx));
+ ctx.advance_to(f.format(*static_cast<const T *>(arg), ctx));
+ }
+};
+
+template<typename Context, type TYPE>
+struct typed_value : value<Context>
+{
+ static const type type_tag = TYPE;
+
+ template<typename T>
+ FMT_CONSTEXPR typed_value(const T &val)
+ : value<Context>(val)
+ {
+ }
+};
+
+template<typename Context, typename T>
+FMT_CONSTEXPR basic_format_arg<Context> make_arg(const T &value);
+
+#define FMT_MAKE_VALUE(TAG, ArgType, ValueType) \
+ template<typename C> \
+ FMT_CONSTEXPR typed_value<C, TAG> make_value(ArgType val) \
+ { \
+ return static_cast<ValueType>(val); \
+ }
+
+#define FMT_MAKE_VALUE_SAME(TAG, Type) \
+ template<typename C> \
+ FMT_CONSTEXPR typed_value<C, TAG> make_value(Type val) \
+ { \
+ return val; \
+ }
+
+FMT_MAKE_VALUE(bool_type, bool, int)
+FMT_MAKE_VALUE(int_type, short, int)
+FMT_MAKE_VALUE(uint_type, unsigned short, unsigned)
+FMT_MAKE_VALUE_SAME(int_type, int)
+FMT_MAKE_VALUE_SAME(uint_type, unsigned)
+
+// To minimize the number of types we need to deal with, long is translated
+// either to int or to long long depending on its size.
+typedef std::conditional<sizeof(long) == sizeof(int), int, long long>::type long_type;
+FMT_MAKE_VALUE((sizeof(long) == sizeof(int) ? int_type : long_long_type), long, long_type)
+typedef std::conditional<sizeof(unsigned long) == sizeof(unsigned), unsigned, unsigned long long>::type ulong_type;
+FMT_MAKE_VALUE((sizeof(unsigned long) == sizeof(unsigned) ? uint_type : ulong_long_type), unsigned long, ulong_type)
+
+FMT_MAKE_VALUE_SAME(long_long_type, long long)
+FMT_MAKE_VALUE_SAME(ulong_long_type, unsigned long long)
+FMT_MAKE_VALUE(int_type, signed char, int)
+FMT_MAKE_VALUE(uint_type, unsigned char, unsigned)
+FMT_MAKE_VALUE(char_type, char, int)
+
+#if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED)
+template<typename C>
+inline typed_value<C, char_type> make_value(wchar_t val)
+{
+ require_wchar<typename C::char_type>();
+ return static_cast<int>(val);
+}
+#endif
+
+FMT_MAKE_VALUE(double_type, float, double)
+FMT_MAKE_VALUE_SAME(double_type, double)
+FMT_MAKE_VALUE_SAME(long_double_type, long double)
+
+// Formatting of wide strings into a narrow buffer and multibyte strings
+// into a wide buffer is disallowed (https://github.com/fmtlib/fmt/pull/606).
+FMT_MAKE_VALUE(cstring_type, typename C::char_type *, const typename C::char_type *)
+FMT_MAKE_VALUE(cstring_type, const typename C::char_type *, const typename C::char_type *)
+
+FMT_MAKE_VALUE(cstring_type, signed char *, const signed char *)
+FMT_MAKE_VALUE_SAME(cstring_type, const signed char *)
+FMT_MAKE_VALUE(cstring_type, unsigned char *, const unsigned char *)
+FMT_MAKE_VALUE_SAME(cstring_type, const unsigned char *)
+FMT_MAKE_VALUE_SAME(string_type, basic_string_view<typename C::char_type>)
+FMT_MAKE_VALUE(string_type, typename basic_string_view<typename C::char_type>::type, basic_string_view<typename C::char_type>)
+FMT_MAKE_VALUE(string_type, const std::basic_string<typename C::char_type> &, basic_string_view<typename C::char_type>)
+FMT_MAKE_VALUE(pointer_type, void *, const void *)
+FMT_MAKE_VALUE_SAME(pointer_type, const void *)
+
+#if FMT_USE_NULLPTR
+FMT_MAKE_VALUE(pointer_type, std::nullptr_t, const void *)
+#endif
+
+// Formatting of arbitrary pointers is disallowed. If you want to output a
+// pointer cast it to "void *" or "const void *". In particular, this forbids
+// formatting of "[const] volatile char *" which is printed as bool by
+// iostreams.
+template<typename C, typename T>
+typename std::enable_if<!std::is_same<T, typename C::char_type>::value>::type make_value(const T *)
+{
+ static_assert(!sizeof(T), "formatting of non-void pointers is disallowed");
+}
+
+template<typename C, typename T>
+inline typename std::enable_if<std::is_enum<T>::value && convert_to_int<T, typename C::char_type>::value, typed_value<C, int_type>>::type
+make_value(const T &val)
+{
+ return static_cast<int>(val);
+}
+
+template<typename C, typename T, typename Char = typename C::char_type>
+inline typename std::enable_if<!convert_to_int<T, Char>::value && !std::is_convertible<T, basic_string_view<Char>>::value,
+ // Implicit conversion to std::string is not handled here because it's
+ // unsafe: https://github.com/fmtlib/fmt/issues/729
+ typed_value<C, custom_type>>::type
+make_value(const T &val)
+{
+ return val;
+}
+
+template<typename C, typename T>
+typed_value<C, named_arg_type> make_value(const named_arg<T, typename C::char_type> &val)
+{
+ basic_format_arg<C> arg = make_arg<C>(val.value);
+ std::memcpy(val.data, &arg, sizeof(arg));
+ return static_cast<const void *>(&val);
+}
+
+// Maximum number of arguments with packed types.
+enum
+{
+ max_packed_args = 15
+};
+
+template<typename Context>
+class arg_map;
+
+template<typename>
+struct result_of;
+
+template<typename F, typename... Args>
+struct result_of<F(Args...)>
+{
+ // A workaround for gcc 4.4 that doesn't allow F to be a reference.
+ typedef typename std::result_of<typename std::remove_reference<F>::type(Args...)>::type type;
+};
+} // namespace internal
+
+// A formatting argument. It is a trivially copyable/constructible type to
+// allow storage in basic_memory_buffer.
+template<typename Context>
+class basic_format_arg
+{
+private:
+ internal::value<Context> value_;
+ internal::type type_;
+
+ template<typename ContextType, typename T>
+ friend FMT_CONSTEXPR basic_format_arg<ContextType> internal::make_arg(const T &value);
+
+ template<typename Visitor, typename Ctx>
+ friend FMT_CONSTEXPR typename internal::result_of<Visitor(int)>::type visit(Visitor &&vis, basic_format_arg<Ctx> arg);
+
+ friend class basic_format_args<Context>;
+ friend class internal::arg_map<Context>;
+
+ typedef typename Context::char_type char_type;
+
+public:
+ class handle
+ {
+ public:
+ explicit handle(internal::custom_value<Context> custom)
+ : custom_(custom)
+ {
+ }
+
+ void format(Context &ctx) const
+ {
+ custom_.format(custom_.value, ctx);
+ }
+
+ private:
+ internal::custom_value<Context> custom_;
+ };
+
+ FMT_CONSTEXPR basic_format_arg()
+ : type_(internal::none_type)
+ {
+ }
+
+ FMT_EXPLICIT operator bool() const FMT_NOEXCEPT
+ {
+ return type_ != internal::none_type;
+ }
+
+ internal::type type() const
+ {
+ return type_;
+ }
+
+ bool is_integral() const
+ {
+ return internal::is_integral(type_);
+ }
+ bool is_arithmetic() const
+ {
+ return internal::is_arithmetic(type_);
+ }
+};
+
+// Parsing context consisting of a format string range being parsed and an
+// argument counter for automatic indexing.
+template<typename Char, typename ErrorHandler = internal::error_handler>
+class basic_parse_context : private ErrorHandler
+{
+private:
+ basic_string_view<Char> format_str_;
+ int next_arg_id_;
+
+public:
+ typedef Char char_type;
+ typedef typename basic_string_view<Char>::iterator iterator;
+
+ explicit FMT_CONSTEXPR basic_parse_context(basic_string_view<Char> format_str, ErrorHandler eh = ErrorHandler())
+ : ErrorHandler(eh)
+ , format_str_(format_str)
+ , next_arg_id_(0)
+ {
+ }
+
+ // Returns an iterator to the beginning of the format string range being
+ // parsed.
+ FMT_CONSTEXPR iterator begin() const FMT_NOEXCEPT
+ {
+ return format_str_.begin();
+ }
+
+ // Returns an iterator past the end of the format string range being parsed.
+ FMT_CONSTEXPR iterator end() const FMT_NOEXCEPT
+ {
+ return format_str_.end();
+ }
+
+ // Advances the begin iterator to ``it``.
+ FMT_CONSTEXPR void advance_to(iterator it)
+ {
+ format_str_.remove_prefix(internal::to_unsigned(it - begin()));
+ }
+
+ // Returns the next argument index.
+ FMT_CONSTEXPR unsigned next_arg_id();
+
+ FMT_CONSTEXPR bool check_arg_id(unsigned)
+ {
+ if (next_arg_id_ > 0)
+ {
+ on_error("cannot switch from automatic to manual argument indexing");
+ return false;
+ }
+ next_arg_id_ = -1;
+ return true;
+ }
+ void check_arg_id(basic_string_view<Char>) {}
+
+ FMT_CONSTEXPR void on_error(const char *message)
+ {
+ ErrorHandler::on_error(message);
+ }
+
+ FMT_CONSTEXPR ErrorHandler error_handler() const
+ {
+ return *this;
+ }
+};
+
+typedef basic_parse_context<char> parse_context;
+typedef basic_parse_context<wchar_t> wparse_context;
+
+namespace internal {
+// A map from argument names to their values for named arguments.
+template<typename Context>
+class arg_map
+{
+private:
+ FMT_DISALLOW_COPY_AND_ASSIGN(arg_map);
+
+ typedef typename Context::char_type char_type;
+
+ struct entry
+ {
+ basic_string_view<char_type> name;
+ basic_format_arg<Context> arg;
+ };
+
+ entry *map_;
+ unsigned size_;
+
+ void push_back(value<Context> val)
+ {
+ const internal::named_arg_base<char_type> &named = val.as_named_arg();
+ map_[size_] = entry{named.name, named.template deserialize<Context>()};
+ ++size_;
+ }
+
+public:
+ arg_map()
+ : map_(FMT_NULL)
+ , size_(0)
+ {
+ }
+ void init(const basic_format_args<Context> &args);
+ ~arg_map()
+ {
+ delete[] map_;
+ }
+
+ basic_format_arg<Context> find(basic_string_view<char_type> name) const
+ {
+ // The list is unsorted, so just return the first matching name.
+ for (entry *it = map_, *end = map_ + size_; it != end; ++it)
+ {
+ if (it->name == name)
+ return it->arg;
+ }
+ return basic_format_arg<Context>();
+ }
+};
+
+template<typename OutputIt, typename Context, typename Char>
+class context_base
+{
+public:
+ typedef OutputIt iterator;
+
+private:
+ basic_parse_context<Char> parse_context_;
+ iterator out_;
+ basic_format_args<Context> args_;
+
+protected:
+ typedef Char char_type;
+ typedef basic_format_arg<Context> format_arg;
+
+ context_base(OutputIt out, basic_string_view<char_type> format_str, basic_format_args<Context> ctx_args)
+ : parse_context_(format_str)
+ , out_(out)
+ , args_(ctx_args)
+ {
+ }
+
+ // Returns the argument with specified index.
+ format_arg do_get_arg(unsigned arg_id)
+ {
+ format_arg arg = args_.get(arg_id);
+ if (!arg)
+ parse_context_.on_error("argument index out of range");
+ return arg;
+ }
+
+ // Checks if manual indexing is used and returns the argument with
+ // specified index.
+ format_arg get_arg(unsigned arg_id)
+ {
+ return this->parse_context().check_arg_id(arg_id) ? this->do_get_arg(arg_id) : format_arg();
+ }
+
+public:
+ basic_parse_context<char_type> &parse_context()
+ {
+ return parse_context_;
+ }
+
+ internal::error_handler error_handler()
+ {
+ return parse_context_.error_handler();
+ }
+
+ void on_error(const char *message)
+ {
+ parse_context_.on_error(message);
+ }
+
+ // Returns an iterator to the beginning of the output range.
+ iterator out()
+ {
+ return out_;
+ }
+ iterator begin()
+ {
+ return out_;
+ } // deprecated
+
+ // Advances the begin iterator to ``it``.
+ void advance_to(iterator it)
+ {
+ out_ = it;
+ }
+
+ basic_format_args<Context> args() const
+ {
+ return args_;
+ }
+};
+
+// Extracts a reference to the container from back_insert_iterator.
+template<typename Container>
+inline Container &get_container(std::back_insert_iterator<Container> it)
+{
+ typedef std::back_insert_iterator<Container> bi_iterator;
+ struct accessor : bi_iterator
+ {
+ accessor(bi_iterator iter)
+ : bi_iterator(iter)
+ {
+ }
+ using bi_iterator::container;
+ };
+ return *accessor(it).container;
+}
+} // namespace internal
+
+// Formatting context.
+template<typename OutputIt, typename Char>
+class basic_format_context : public internal::context_base<OutputIt, basic_format_context<OutputIt, Char>, Char>
+{
+public:
+ /** The character type for the output. */
+ typedef Char char_type;
+
+ // using formatter_type = formatter<T, char_type>;
+ template<typename T>
+ struct formatter_type
+ {
+ typedef formatter<T, char_type> type;
+ };
+
+private:
+ internal::arg_map<basic_format_context> map_;
+
+ FMT_DISALLOW_COPY_AND_ASSIGN(basic_format_context);
+
+ typedef internal::context_base<OutputIt, basic_format_context, Char> base;
+ typedef typename base::format_arg format_arg;
+ using base::get_arg;
+
+public:
+ using typename base::iterator;
+
+ /**
+ Constructs a ``basic_format_context`` object. References to the arguments are
+ stored in the object so make sure they have appropriate lifetimes.
+ */
+ basic_format_context(OutputIt out, basic_string_view<char_type> format_str, basic_format_args<basic_format_context> ctx_args)
+ : base(out, format_str, ctx_args)
+ {
+ }
+
+ format_arg next_arg()
+ {
+ return this->do_get_arg(this->parse_context().next_arg_id());
+ }
+ format_arg get_arg(unsigned arg_id)
+ {
+ return this->do_get_arg(arg_id);
+ }
+
+ // Checks if manual indexing is used and returns the argument with the
+ // specified name.
+ format_arg get_arg(basic_string_view<char_type> name);
+};
+
+template<typename Char>
+struct buffer_context
+{
+ typedef basic_format_context<std::back_insert_iterator<internal::basic_buffer<Char>>, Char> type;
+};
+typedef buffer_context<char>::type format_context;
+typedef buffer_context<wchar_t>::type wformat_context;
+
+namespace internal {
+template<typename Context, typename T>
+struct get_type
+{
+ typedef decltype(make_value<Context>(declval<typename std::decay<T>::type &>())) value_type;
+ static const type value = value_type::type_tag;
+};
+
+template<typename Context>
+FMT_CONSTEXPR unsigned long long get_types()
+{
+ return 0;
+}
+
+template<typename Context, typename Arg, typename... Args>
+FMT_CONSTEXPR unsigned long long get_types()
+{
+ return get_type<Context, Arg>::value | (get_types<Context, Args...>() << 4);
+}
+
+template<typename Context, typename T>
+FMT_CONSTEXPR basic_format_arg<Context> make_arg(const T &value)
+{
+ basic_format_arg<Context> arg;
+ arg.type_ = get_type<Context, T>::value;
+ arg.value_ = make_value<Context>(value);
+ return arg;
+}
+
+template<bool IS_PACKED, typename Context, typename T>
+inline typename std::enable_if<IS_PACKED, value<Context>>::type make_arg(const T &value)
+{
+ return make_value<Context>(value);
+}
+
+template<bool IS_PACKED, typename Context, typename T>
+inline typename std::enable_if<!IS_PACKED, basic_format_arg<Context>>::type make_arg(const T &value)
+{
+ return make_arg<Context>(value);
+}
+} // namespace internal
+
+/**
+ \rst
+ An array of references to arguments. It can be implicitly converted into
+ `~fmt::basic_format_args` for passing into type-erased formatting functions
+ such as `~fmt::vformat`.
+ \endrst
+ */
+template<typename Context, typename... Args>
+class format_arg_store
+{
+private:
+ static const size_t NUM_ARGS = sizeof...(Args);
+
+ // Packed is a macro on MinGW so use IS_PACKED instead.
+ static const bool IS_PACKED = NUM_ARGS < internal::max_packed_args;
+
+ typedef typename std::conditional<IS_PACKED, internal::value<Context>, basic_format_arg<Context>>::type value_type;
+
+ // If the arguments are not packed, add one more element to mark the end.
+ static const size_t DATA_SIZE = NUM_ARGS + (IS_PACKED && NUM_ARGS != 0 ? 0 : 1);
+ value_type data_[DATA_SIZE];
+
+ friend class basic_format_args<Context>;
+
+ static FMT_CONSTEXPR long long get_types()
+ {
+ return IS_PACKED ? static_cast<long long>(internal::get_types<Context, Args...>()) : -static_cast<long long>(NUM_ARGS);
+ }
+
+public:
+#if FMT_USE_CONSTEXPR
+ static constexpr long long TYPES = get_types();
+#else
+ static const long long TYPES;
+#endif
+
+#if (FMT_GCC_VERSION && FMT_GCC_VERSION <= 405) || (FMT_MSC_VER && FMT_MSC_VER <= 1800)
+ // Workaround array initialization issues in gcc <= 4.5 and MSVC <= 2013.
+ format_arg_store(const Args &... args)
+ {
+ value_type init[DATA_SIZE] = {internal::make_arg<IS_PACKED, Context>(args)...};
+ std::memcpy(data_, init, sizeof(init));
+ }
+#else
+ format_arg_store(const Args &... args)
+ : data_{internal::make_arg<IS_PACKED, Context>(args)...}
+ {
+ }
+#endif
+};
+
+#if !FMT_USE_CONSTEXPR
+template<typename Context, typename... Args>
+const long long format_arg_store<Context, Args...>::TYPES = get_types();
+#endif
+
+/**
+ \rst
+ Constructs an `~fmt::format_arg_store` object that contains references to
+ arguments and can be implicitly converted to `~fmt::format_args`. `Context`
+ can
+ be omitted in which case it defaults to `~fmt::context`.
+ \endrst
+ */
+template<typename Context, typename... Args>
+inline format_arg_store<Context, Args...> make_format_args(const Args &... args)
+{
+ return format_arg_store<Context, Args...>(args...);
+}
+
+template<typename... Args>
+inline format_arg_store<format_context, Args...> make_format_args(const Args &... args)
+{
+ return format_arg_store<format_context, Args...>(args...);
+}
+
+/** Formatting arguments. */
+template<typename Context>
+class basic_format_args
+{
+public:
+ typedef unsigned size_type;
+ typedef basic_format_arg<Context> format_arg;
+
+private:
+ // To reduce compiled code size per formatting function call, types of first
+ // max_packed_args arguments are passed in the types_ field.
+ unsigned long long types_;
+ union
+ {
+ // If the number of arguments is less than max_packed_args, the argument
+ // values are stored in values_, otherwise they are stored in args_.
+ // This is done to reduce compiled code size as storing larger objects
+ // may require more code (at least on x86-64) even if the same amount of
+ // data is actually copied to stack. It saves ~10% on the bloat test.
+ const internal::value<Context> *values_;
+ const format_arg *args_;
+ };
+
+ typename internal::type type(unsigned index) const
+ {
+ unsigned shift = index * 4;
+ unsigned long long mask = 0xf;
+ return static_cast<typename internal::type>((types_ & (mask << shift)) >> shift);
+ }
+
+ friend class internal::arg_map<Context>;
+
+ void set_data(const internal::value<Context> *values)
+ {
+ values_ = values;
+ }
+ void set_data(const format_arg *args)
+ {
+ args_ = args;
+ }
+
+ format_arg do_get(size_type index) const
+ {
+ long long signed_types = static_cast<long long>(types_);
+ if (signed_types < 0)
+ {
+ unsigned long long num_args = static_cast<unsigned long long>(-signed_types);
+ return index < num_args ? args_[index] : format_arg();
+ }
+ format_arg arg;
+ if (index > internal::max_packed_args)
+ return arg;
+ arg.type_ = type(index);
+ if (arg.type_ == internal::none_type)
+ return arg;
+ internal::value<Context> &val = arg.value_;
+ val = values_[index];
+ return arg;
+ }
+
+public:
+ basic_format_args()
+ : types_(0)
+ {
+ }
+
+ /**
+ \rst
+ Constructs a `basic_format_args` object from `~fmt::format_arg_store`.
+ \endrst
+ */
+ template<typename... Args>
+ basic_format_args(const format_arg_store<Context, Args...> &store)
+ : types_(static_cast<unsigned long long>(store.TYPES))
+ {
+ set_data(store.data_);
+ }
+
+ /** Returns the argument at specified index. */
+ format_arg get(size_type index) const
+ {
+ format_arg arg = do_get(index);
+ return arg.type_ == internal::named_arg_type ? arg.value_.as_named_arg().template deserialize<Context>() : arg;
+ }
+
+ unsigned max_size() const
+ {
+ long long signed_types = static_cast<long long>(types_);
+ return static_cast<unsigned>(signed_types < 0 ? -signed_types : static_cast<long long>(internal::max_packed_args));
+ }
+};
+
+/** An alias to ``basic_format_args<context>``. */
+// It is a separate type rather than a typedef to make symbols readable.
+struct format_args : basic_format_args<format_context>
+{
+ template<typename... Args>
+ format_args(Args &&... arg)
+ : basic_format_args<format_context>(std::forward<Args>(arg)...)
+ {
+ }
+};
+struct wformat_args : basic_format_args<wformat_context>
+{
+ template<typename... Args>
+ wformat_args(Args &&... arg)
+ : basic_format_args<wformat_context>(std::forward<Args>(arg)...)
+ {
+ }
+};
+
+namespace internal {
+template<typename Char>
+struct named_arg_base
+{
+ basic_string_view<Char> name;
+
+ // Serialized value<context>.
+ mutable char data[sizeof(basic_format_arg<format_context>)];
+
+ named_arg_base(basic_string_view<Char> nm)
+ : name(nm)
+ {
+ }
+
+ template<typename Context>
+ basic_format_arg<Context> deserialize() const
+ {
+ basic_format_arg<Context> arg;
+ std::memcpy(&arg, data, sizeof(basic_format_arg<Context>));
+ return arg;
+ }
+};
+
+template<typename T, typename Char>
+struct named_arg : named_arg_base<Char>
+{
+ const T &value;
+
+ named_arg(basic_string_view<Char> name, const T &val)
+ : named_arg_base<Char>(name)
+ , value(val)
+ {
+ }
+};
+} // namespace internal
+
+/**
+ \rst
+ Returns a named argument to be used in a formatting function.
+
+ **Example**::
+
+ fmt::print("Elapsed time: {s:.2f} seconds", fmt::arg("s", 1.23));
+ \endrst
+ */
+template<typename T>
+inline internal::named_arg<T, char> arg(string_view name, const T &arg)
+{
+ return internal::named_arg<T, char>(name, arg);
+}
+
+template<typename T>
+inline internal::named_arg<T, wchar_t> arg(wstring_view name, const T &arg)
+{
+ return internal::named_arg<T, wchar_t>(name, arg);
+}
+
+// This function template is deleted intentionally to disable nested named
+// arguments as in ``format("{}", arg("a", arg("b", 42)))``.
+template<typename S, typename T, typename Char>
+void arg(S, internal::named_arg<T, Char>) FMT_DELETED;
+
+#ifndef FMT_EXTENDED_COLORS
+// color and (v)print_colored are deprecated.
+enum color
+{
+ black,
+ red,
+ green,
+ yellow,
+ blue,
+ magenta,
+ cyan,
+ white
+};
+FMT_API void vprint_colored(color c, string_view format, format_args args);
+FMT_API void vprint_colored(color c, wstring_view format, wformat_args args);
+template<typename... Args>
+inline void print_colored(color c, string_view format_str, const Args &... args)
+{
+ vprint_colored(c, format_str, make_format_args(args...));
+}
+template<typename... Args>
+inline void print_colored(color c, wstring_view format_str, const Args &... args)
+{
+ vprint_colored(c, format_str, make_format_args<wformat_context>(args...));
+}
+#endif
+
+format_context::iterator vformat_to(internal::buffer &buf, string_view format_str, format_args args);
+wformat_context::iterator vformat_to(internal::wbuffer &buf, wstring_view format_str, wformat_args args);
+
+template<typename Container>
+struct is_contiguous : std::false_type
+{
+};
+
+template<typename Char>
+struct is_contiguous<std::basic_string<Char>> : std::true_type
+{
+};
+
+template<typename Char>
+struct is_contiguous<internal::basic_buffer<Char>> : std::true_type
+{
+};
+
+/** Formats a string and writes the output to ``out``. */
+template<typename Container>
+typename std::enable_if<is_contiguous<Container>::value, std::back_insert_iterator<Container>>::type vformat_to(
+ std::back_insert_iterator<Container> out, string_view format_str, format_args args)
+{
+ auto &container = internal::get_container(out);
+ internal::container_buffer<Container> buf(container);
+ vformat_to(buf, format_str, args);
+ return std::back_inserter(container);
+}
+
+template<typename Container>
+typename std::enable_if<is_contiguous<Container>::value, std::back_insert_iterator<Container>>::type vformat_to(
+ std::back_insert_iterator<Container> out, wstring_view format_str, wformat_args args)
+{
+ auto &container = internal::get_container(out);
+ internal::container_buffer<Container> buf(container);
+ vformat_to(buf, format_str, args);
+ return std::back_inserter(container);
+}
+
+std::string vformat(string_view format_str, format_args args);
+std::wstring vformat(wstring_view format_str, wformat_args args);
+
+/**
+ \rst
+ Formats arguments and returns the result as a string.
+
+ **Example**::
+
+ #include <fmt/core.h>
+ std::string message = fmt::format("The answer is {}", 42);
+ \endrst
+*/
+template<typename... Args>
+inline std::string format(string_view format_str, const Args &... args)
+{
+ // This should be just
+ // return vformat(format_str, make_format_args(args...));
+ // but gcc has trouble optimizing the latter, so break it down.
+ format_arg_store<format_context, Args...> as{args...};
+ return vformat(format_str, as);
+}
+template<typename... Args>
+inline std::wstring format(wstring_view format_str, const Args &... args)
+{
+ format_arg_store<wformat_context, Args...> as{args...};
+ return vformat(format_str, as);
+}
+
+FMT_API void vprint(std::FILE *f, string_view format_str, format_args args);
+FMT_API void vprint(std::FILE *f, wstring_view format_str, wformat_args args);
+
+/**
+ \rst
+ Prints formatted data to the file *f*.
+
+ **Example**::
+
+ fmt::print(stderr, "Don't {}!", "panic");
+ \endrst
+ */
+template<typename... Args>
+inline void print(std::FILE *f, string_view format_str, const Args &... args)
+{
+ format_arg_store<format_context, Args...> as(args...);
+ vprint(f, format_str, as);
+}
+/**
+ Prints formatted data to the file *f* which should be in wide-oriented mode
+ set
+ via ``fwide(f, 1)`` or ``_setmode(_fileno(f), _O_U8TEXT)`` on Windows.
+ */
+template<typename... Args>
+inline void print(std::FILE *f, wstring_view format_str, const Args &... args)
+{
+ format_arg_store<wformat_context, Args...> as(args...);
+ vprint(f, format_str, as);
+}
+
+FMT_API void vprint(string_view format_str, format_args args);
+FMT_API void vprint(wstring_view format_str, wformat_args args);
+
+/**
+ \rst
+ Prints formatted data to ``stdout``.
+
+ **Example**::
+
+ fmt::print("Elapsed time: {0:.2f} seconds", 1.23);
+ \endrst
+ */
+template<typename... Args>
+inline void print(string_view format_str, const Args &... args)
+{
+ format_arg_store<format_context, Args...> as{args...};
+ vprint(format_str, as);
+}
+
+template<typename... Args>
+inline void print(wstring_view format_str, const Args &... args)
+{
+ format_arg_store<wformat_context, Args...> as(args...);
+ vprint(format_str, as);
+}
+FMT_END_NAMESPACE
+
+#endif // FMT_CORE_H_
diff --git a/src/include/spdlog/fmt/bundled/format-inl.h b/src/include/spdlog/fmt/bundled/format-inl.h
new file mode 100644
index 0000000000000000000000000000000000000000..1aba8c6e4a23ea7c68093b0f897966c86d0930eb
--- /dev/null
+++ b/src/include/spdlog/fmt/bundled/format-inl.h
@@ -0,0 +1,578 @@
+// Formatting library for C++
+//
+// Copyright (c) 2012 - 2016, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#ifndef FMT_FORMAT_INL_H_
+#define FMT_FORMAT_INL_H_
+
+#include "format.h"
+
+#include <string.h>
+
+#include <cctype>
+#include <cerrno>
+#include <climits>
+#include <cmath>
+#include <cstdarg>
+#include <cstddef> // for std::ptrdiff_t
+#include <locale>
+
+#if defined(_WIN32) && defined(__MINGW32__)
+#include <cstring>
+#endif
+
+#if FMT_USE_WINDOWS_H
+#if !defined(FMT_HEADER_ONLY) && !defined(WIN32_LEAN_AND_MEAN)
+#define WIN32_LEAN_AND_MEAN
+#endif
+#if defined(NOMINMAX) || defined(FMT_WIN_MINMAX)
+#include <windows.h>
+#else
+#define NOMINMAX
+#include <windows.h>
+#undef NOMINMAX
+#endif
+#endif
+
+#if FMT_EXCEPTIONS
+#define FMT_TRY try
+#define FMT_CATCH(x) catch (x)
+#else
+#define FMT_TRY if (true)
+#define FMT_CATCH(x) if (false)
+#endif
+
+#ifdef _MSC_VER
+#pragma warning(push)
+#pragma warning(disable : 4127) // conditional expression is constant
+#pragma warning(disable : 4702) // unreachable code
+// Disable deprecation warning for strerror. The latter is not called but
+// MSVC fails to detect it.
+#pragma warning(disable : 4996)
+#endif
+
+// Dummy implementations of strerror_r and strerror_s called if corresponding
+// system functions are not available.
+inline fmt::internal::null<> strerror_r(int, char *, ...)
+{
+ return fmt::internal::null<>();
+}
+inline fmt::internal::null<> strerror_s(char *, std::size_t, ...)
+{
+ return fmt::internal::null<>();
+}
+
+FMT_BEGIN_NAMESPACE
+
+namespace {
+
+#ifndef _MSC_VER
+#define FMT_SNPRINTF snprintf
+#else // _MSC_VER
+inline int fmt_snprintf(char *buffer, size_t size, const char *format, ...)
+{
+ va_list args;
+ va_start(args, format);
+ int result = vsnprintf_s(buffer, size, _TRUNCATE, format, args);
+ va_end(args);
+ return result;
+}
+#define FMT_SNPRINTF fmt_snprintf
+#endif // _MSC_VER
+
+#if defined(_WIN32) && defined(__MINGW32__) && !defined(__NO_ISOCEXT)
+#define FMT_SWPRINTF snwprintf
+#else
+#define FMT_SWPRINTF swprintf
+#endif // defined(_WIN32) && defined(__MINGW32__) && !defined(__NO_ISOCEXT)
+
+typedef void (*FormatFunc)(internal::buffer &, int, string_view);
+
+// Portable thread-safe version of strerror.
+// Sets buffer to point to a string describing the error code.
+// This can be either a pointer to a string stored in buffer,
+// or a pointer to some static immutable string.
+// Returns one of the following values:
+// 0 - success
+// ERANGE - buffer is not large enough to store the error message
+// other - failure
+// Buffer should be at least of size 1.
+int safe_strerror(int error_code, char *&buffer, std::size_t buffer_size) FMT_NOEXCEPT
+{
+ FMT_ASSERT(buffer != FMT_NULL && buffer_size != 0, "invalid buffer");
+
+ class dispatcher
+ {
+ private:
+ int error_code_;
+ char *&buffer_;
+ std::size_t buffer_size_;
+
+ // A noop assignment operator to avoid bogus warnings.
+ void operator=(const dispatcher &) {}
+
+ // Handle the result of XSI-compliant version of strerror_r.
+ int handle(int result)
+ {
+ // glibc versions before 2.13 return result in errno.
+ return result == -1 ? errno : result;
+ }
+
+ // Handle the result of GNU-specific version of strerror_r.
+ int handle(char *message)
+ {
+ // If the buffer is full then the message is probably truncated.
+ if (message == buffer_ && strlen(buffer_) == buffer_size_ - 1)
+ return ERANGE;
+ buffer_ = message;
+ return 0;
+ }
+
+ // Handle the case when strerror_r is not available.
+ int handle(internal::null<>)
+ {
+ return fallback(strerror_s(buffer_, buffer_size_, error_code_));
+ }
+
+ // Fallback to strerror_s when strerror_r is not available.
+ int fallback(int result)
+ {
+ // If the buffer is full then the message is probably truncated.
+ return result == 0 && strlen(buffer_) == buffer_size_ - 1 ? ERANGE : result;
+ }
+
+ // Fallback to strerror if strerror_r and strerror_s are not available.
+ int fallback(internal::null<>)
+ {
+ errno = 0;
+ buffer_ = strerror(error_code_);
+ return errno;
+ }
+
+ public:
+ dispatcher(int err_code, char *&buf, std::size_t buf_size)
+ : error_code_(err_code)
+ , buffer_(buf)
+ , buffer_size_(buf_size)
+ {
+ }
+
+ int run()
+ {
+ return handle(strerror_r(error_code_, buffer_, buffer_size_));
+ }
+ };
+ return dispatcher(error_code, buffer, buffer_size).run();
+}
+
+void format_error_code(internal::buffer &out, int error_code, string_view message) FMT_NOEXCEPT
+{
+ // Report error code making sure that the output fits into
+ // inline_buffer_size to avoid dynamic memory allocation and potential
+ // bad_alloc.
+ out.resize(0);
+ static const char SEP[] = ": ";
+ static const char ERROR_STR[] = "error ";
+ // Subtract 2 to account for terminating null characters in SEP and ERROR_STR.
+ std::size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2;
+ typedef internal::int_traits<int>::main_type main_type;
+ main_type abs_value = static_cast<main_type>(error_code);
+ if (internal::is_negative(error_code))
+ {
+ abs_value = 0 - abs_value;
+ ++error_code_size;
+ }
+ error_code_size += internal::count_digits(abs_value);
+ writer w(out);
+ if (message.size() <= inline_buffer_size - error_code_size)
+ {
+ w.write(message);
+ w.write(SEP);
+ }
+ w.write(ERROR_STR);
+ w.write(error_code);
+ assert(out.size() <= inline_buffer_size);
+}
+
+void report_error(FormatFunc func, int error_code, string_view message) FMT_NOEXCEPT
+{
+ memory_buffer full_message;
+ func(full_message, error_code, message);
+ // Use Writer::data instead of Writer::c_str to avoid potential memory
+ // allocation.
+ std::fwrite(full_message.data(), full_message.size(), 1, stderr);
+ std::fputc('\n', stderr);
+}
+} // namespace
+
+class locale
+{
+private:
+ std::locale locale_;
+
+public:
+ explicit locale(std::locale loc = std::locale())
+ : locale_(loc)
+ {
+ }
+ std::locale get()
+ {
+ return locale_;
+ }
+};
+
+template<typename Char>
+FMT_FUNC Char internal::thousands_sep(locale_provider *lp)
+{
+ std::locale loc = lp ? lp->locale().get() : std::locale();
+ return std::use_facet<std::numpunct<Char>>(loc).thousands_sep();
+}
+
+FMT_FUNC void system_error::init(int err_code, string_view format_str, format_args args)
+{
+ error_code_ = err_code;
+ memory_buffer buffer;
+ format_system_error(buffer, err_code, vformat(format_str, args));
+ std::runtime_error &base = *this;
+ base = std::runtime_error(to_string(buffer));
+}
+
+namespace internal {
+template<typename T>
+int char_traits<char>::format_float(char *buffer, std::size_t size, const char *format, int precision, T value)
+{
+ return precision < 0 ? FMT_SNPRINTF(buffer, size, format, value) : FMT_SNPRINTF(buffer, size, format, precision, value);
+}
+
+template<typename T>
+int char_traits<wchar_t>::format_float(wchar_t *buffer, std::size_t size, const wchar_t *format, int precision, T value)
+{
+ return precision < 0 ? FMT_SWPRINTF(buffer, size, format, value) : FMT_SWPRINTF(buffer, size, format, precision, value);
+}
+
+template<typename T>
+const char basic_data<T>::DIGITS[] = "0001020304050607080910111213141516171819"
+ "2021222324252627282930313233343536373839"
+ "4041424344454647484950515253545556575859"
+ "6061626364656667686970717273747576777879"
+ "8081828384858687888990919293949596979899";
+
+#define FMT_POWERS_OF_10(factor) \
+ factor * 10, factor * 100, factor * 1000, factor * 10000, factor * 100000, factor * 1000000, factor * 10000000, factor * 100000000, \
+ factor * 1000000000
+
+template<typename T>
+const uint32_t basic_data<T>::POWERS_OF_10_32[] = {0, FMT_POWERS_OF_10(1)};
+
+template<typename T>
+const uint64_t basic_data<T>::POWERS_OF_10_64[] = {0, FMT_POWERS_OF_10(1), FMT_POWERS_OF_10(1000000000ull), 10000000000000000000ull};
+
+// Normalized 64-bit significands of pow(10, k), for k = -348, -340, ..., 340.
+// These are generated by support/compute-powers.py.
+template<typename T>
+const uint64_t basic_data<T>::POW10_SIGNIFICANDS[] = {0xfa8fd5a0081c0288, 0xbaaee17fa23ebf76, 0x8b16fb203055ac76, 0xcf42894a5dce35ea,
+ 0x9a6bb0aa55653b2d, 0xe61acf033d1a45df, 0xab70fe17c79ac6ca, 0xff77b1fcbebcdc4f, 0xbe5691ef416bd60c, 0x8dd01fad907ffc3c,
+ 0xd3515c2831559a83, 0x9d71ac8fada6c9b5, 0xea9c227723ee8bcb, 0xaecc49914078536d, 0x823c12795db6ce57, 0xc21094364dfb5637,
+ 0x9096ea6f3848984f, 0xd77485cb25823ac7, 0xa086cfcd97bf97f4, 0xef340a98172aace5, 0xb23867fb2a35b28e, 0x84c8d4dfd2c63f3b,
+ 0xc5dd44271ad3cdba, 0x936b9fcebb25c996, 0xdbac6c247d62a584, 0xa3ab66580d5fdaf6, 0xf3e2f893dec3f126, 0xb5b5ada8aaff80b8,
+ 0x87625f056c7c4a8b, 0xc9bcff6034c13053, 0x964e858c91ba2655, 0xdff9772470297ebd, 0xa6dfbd9fb8e5b88f, 0xf8a95fcf88747d94,
+ 0xb94470938fa89bcf, 0x8a08f0f8bf0f156b, 0xcdb02555653131b6, 0x993fe2c6d07b7fac, 0xe45c10c42a2b3b06, 0xaa242499697392d3,
+ 0xfd87b5f28300ca0e, 0xbce5086492111aeb, 0x8cbccc096f5088cc, 0xd1b71758e219652c, 0x9c40000000000000, 0xe8d4a51000000000,
+ 0xad78ebc5ac620000, 0x813f3978f8940984, 0xc097ce7bc90715b3, 0x8f7e32ce7bea5c70, 0xd5d238a4abe98068, 0x9f4f2726179a2245,
+ 0xed63a231d4c4fb27, 0xb0de65388cc8ada8, 0x83c7088e1aab65db, 0xc45d1df942711d9a, 0x924d692ca61be758, 0xda01ee641a708dea,
+ 0xa26da3999aef774a, 0xf209787bb47d6b85, 0xb454e4a179dd1877, 0x865b86925b9bc5c2, 0xc83553c5c8965d3d, 0x952ab45cfa97a0b3,
+ 0xde469fbd99a05fe3, 0xa59bc234db398c25, 0xf6c69a72a3989f5c, 0xb7dcbf5354e9bece, 0x88fcf317f22241e2, 0xcc20ce9bd35c78a5,
+ 0x98165af37b2153df, 0xe2a0b5dc971f303a, 0xa8d9d1535ce3b396, 0xfb9b7cd9a4a7443c, 0xbb764c4ca7a44410, 0x8bab8eefb6409c1a,
+ 0xd01fef10a657842c, 0x9b10a4e5e9913129, 0xe7109bfba19c0c9d, 0xac2820d9623bf429, 0x80444b5e7aa7cf85, 0xbf21e44003acdd2d,
+ 0x8e679c2f5e44ff8f, 0xd433179d9c8cb841, 0x9e19db92b4e31ba9, 0xeb96bf6ebadf77d9, 0xaf87023b9bf0ee6b};
+
+// Binary exponents of pow(10, k), for k = -348, -340, ..., 340, corresponding
+// to significands above.
+template<typename T>
+const int16_t basic_data<T>::POW10_EXPONENTS[] = {-1220, -1193, -1166, -1140, -1113, -1087, -1060, -1034, -1007, -980, -954, -927, -901,
+ -874, -847, -821, -794, -768, -741, -715, -688, -661, -635, -608, -582, -555, -529, -502, -475, -449, -422, -396, -369, -343, -316,
+ -289, -263, -236, -210, -183, -157, -130, -103, -77, -50, -24, 3, 30, 56, 83, 109, 136, 162, 189, 216, 242, 269, 295, 322, 348, 375,
+ 402, 428, 455, 481, 508, 534, 561, 588, 614, 641, 667, 694, 720, 747, 774, 800, 827, 853, 880, 907, 933, 960, 986, 1013, 1039, 1066};
+
+template<typename T>
+const char basic_data<T>::RESET_COLOR[] = "\x1b[0m";
+template<typename T>
+const wchar_t basic_data<T>::WRESET_COLOR[] = L"\x1b[0m";
+
+FMT_FUNC fp operator*(fp x, fp y)
+{
+ // Multiply 32-bit parts of significands.
+ uint64_t mask = (1ULL << 32) - 1;
+ uint64_t a = x.f >> 32, b = x.f & mask;
+ uint64_t c = y.f >> 32, d = y.f & mask;
+ uint64_t ac = a * c, bc = b * c, ad = a * d, bd = b * d;
+ // Compute mid 64-bit of result and round.
+ uint64_t mid = (bd >> 32) + (ad & mask) + (bc & mask) + (1U << 31);
+ return fp(ac + (ad >> 32) + (bc >> 32) + (mid >> 32), x.e + y.e + 64);
+}
+
+FMT_FUNC fp get_cached_power(int min_exponent, int &pow10_exponent)
+{
+ const double one_over_log2_10 = 0.30102999566398114; // 1 / log2(10)
+ int index = static_cast<int>(std::ceil((min_exponent + fp::significand_size - 1) * one_over_log2_10));
+ // Decimal exponent of the first (smallest) cached power of 10.
+ const int first_dec_exp = -348;
+ // Difference between two consecutive decimal exponents in cached powers of
+ // 10.
+ const int dec_exp_step = 8;
+ index = (index - first_dec_exp - 1) / dec_exp_step + 1;
+ pow10_exponent = first_dec_exp + index * dec_exp_step;
+ return fp(data::POW10_SIGNIFICANDS[index], data::POW10_EXPONENTS[index]);
+}
+} // namespace internal
+
+#if FMT_USE_WINDOWS_H
+
+FMT_FUNC internal::utf8_to_utf16::utf8_to_utf16(string_view s)
+{
+ static const char ERROR_MSG[] = "cannot convert string from UTF-8 to UTF-16";
+ if (s.size() > INT_MAX)
+ FMT_THROW(windows_error(ERROR_INVALID_PARAMETER, ERROR_MSG));
+ int s_size = static_cast<int>(s.size());
+ if (s_size == 0)
+ {
+ // MultiByteToWideChar does not support zero length, handle separately.
+ buffer_.resize(1);
+ buffer_[0] = 0;
+ return;
+ }
+
+ int length = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, FMT_NULL, 0);
+ if (length == 0)
+ FMT_THROW(windows_error(GetLastError(), ERROR_MSG));
+ buffer_.resize(length + 1);
+ length = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, &buffer_[0], length);
+ if (length == 0)
+ FMT_THROW(windows_error(GetLastError(), ERROR_MSG));
+ buffer_[length] = 0;
+}
+
+FMT_FUNC internal::utf16_to_utf8::utf16_to_utf8(wstring_view s)
+{
+ if (int error_code = convert(s))
+ {
+ FMT_THROW(windows_error(error_code, "cannot convert string from UTF-16 to UTF-8"));
+ }
+}
+
+FMT_FUNC int internal::utf16_to_utf8::convert(wstring_view s)
+{
+ if (s.size() > INT_MAX)
+ return ERROR_INVALID_PARAMETER;
+ int s_size = static_cast<int>(s.size());
+ if (s_size == 0)
+ {
+ // WideCharToMultiByte does not support zero length, handle separately.
+ buffer_.resize(1);
+ buffer_[0] = 0;
+ return 0;
+ }
+
+ int length = WideCharToMultiByte(CP_UTF8, 0, s.data(), s_size, FMT_NULL, 0, FMT_NULL, FMT_NULL);
+ if (length == 0)
+ return GetLastError();
+ buffer_.resize(length + 1);
+ length = WideCharToMultiByte(CP_UTF8, 0, s.data(), s_size, &buffer_[0], length, FMT_NULL, FMT_NULL);
+ if (length == 0)
+ return GetLastError();
+ buffer_[length] = 0;
+ return 0;
+}
+
+FMT_FUNC void windows_error::init(int err_code, string_view format_str, format_args args)
+{
+ error_code_ = err_code;
+ memory_buffer buffer;
+ internal::format_windows_error(buffer, err_code, vformat(format_str, args));
+ std::runtime_error &base = *this;
+ base = std::runtime_error(to_string(buffer));
+}
+
+FMT_FUNC void internal::format_windows_error(internal::buffer &out, int error_code, string_view message) FMT_NOEXCEPT
+{
+ FMT_TRY
+ {
+ wmemory_buffer buf;
+ buf.resize(inline_buffer_size);
+ for (;;)
+ {
+ wchar_t *system_message = &buf[0];
+ int result = FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, FMT_NULL, error_code,
+ MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), system_message, static_cast<uint32_t>(buf.size()), FMT_NULL);
+ if (result != 0)
+ {
+ utf16_to_utf8 utf8_message;
+ if (utf8_message.convert(system_message) == ERROR_SUCCESS)
+ {
+ writer w(out);
+ w.write(message);
+ w.write(": ");
+ w.write(utf8_message);
+ return;
+ }
+ break;
+ }
+ if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
+ break; // Can't get error message, report error code instead.
+ buf.resize(buf.size() * 2);
+ }
+ }
+ FMT_CATCH(...) {}
+ format_error_code(out, error_code, message);
+}
+
+#endif // FMT_USE_WINDOWS_H
+
+FMT_FUNC void format_system_error(internal::buffer &out, int error_code, string_view message) FMT_NOEXCEPT
+{
+ FMT_TRY
+ {
+ memory_buffer buf;
+ buf.resize(inline_buffer_size);
+ for (;;)
+ {
+ char *system_message = &buf[0];
+ int result = safe_strerror(error_code, system_message, buf.size());
+ if (result == 0)
+ {
+ writer w(out);
+ w.write(message);
+ w.write(": ");
+ w.write(system_message);
+ return;
+ }
+ if (result != ERANGE)
+ break; // Can't get error message, report error code instead.
+ buf.resize(buf.size() * 2);
+ }
+ }
+ FMT_CATCH(...) {}
+ format_error_code(out, error_code, message);
+}
+
+template<typename Char>
+void basic_fixed_buffer<Char>::grow(std::size_t)
+{
+ FMT_THROW(std::runtime_error("buffer overflow"));
+}
+
+FMT_FUNC void internal::error_handler::on_error(const char *message)
+{
+ FMT_THROW(format_error(message));
+}
+
+FMT_FUNC void report_system_error(int error_code, fmt::string_view message) FMT_NOEXCEPT
+{
+ report_error(format_system_error, error_code, message);
+}
+
+#if FMT_USE_WINDOWS_H
+FMT_FUNC void report_windows_error(int error_code, fmt::string_view message) FMT_NOEXCEPT
+{
+ report_error(internal::format_windows_error, error_code, message);
+}
+#endif
+
+FMT_FUNC void vprint(std::FILE *f, string_view format_str, format_args args)
+{
+ memory_buffer buffer;
+ vformat_to(buffer, format_str, args);
+ std::fwrite(buffer.data(), 1, buffer.size(), f);
+}
+
+FMT_FUNC void vprint(std::FILE *f, wstring_view format_str, wformat_args args)
+{
+ wmemory_buffer buffer;
+ vformat_to(buffer, format_str, args);
+ std::fwrite(buffer.data(), sizeof(wchar_t), buffer.size(), f);
+}
+
+FMT_FUNC void vprint(string_view format_str, format_args args)
+{
+ vprint(stdout, format_str, args);
+}
+
+FMT_FUNC void vprint(wstring_view format_str, wformat_args args)
+{
+ vprint(stdout, format_str, args);
+}
+
+#ifndef FMT_EXTENDED_COLORS
+FMT_FUNC void vprint_colored(color c, string_view format, format_args args)
+{
+ char escape[] = "\x1b[30m";
+ escape[3] = static_cast<char>('0' + c);
+ std::fputs(escape, stdout);
+ vprint(format, args);
+ std::fputs(internal::data::RESET_COLOR, stdout);
+}
+
+FMT_FUNC void vprint_colored(color c, wstring_view format, wformat_args args)
+{
+ wchar_t escape[] = L"\x1b[30m";
+ escape[3] = static_cast<wchar_t>('0' + c);
+ std::fputws(escape, stdout);
+ vprint(format, args);
+ std::fputws(internal::data::WRESET_COLOR, stdout);
+}
+#else
+namespace internal {
+FMT_CONSTEXPR void to_esc(uint8_t c, char out[], int offset)
+{
+ out[offset + 0] = static_cast<char>('0' + c / 100);
+ out[offset + 1] = static_cast<char>('0' + c / 10 % 10);
+ out[offset + 2] = static_cast<char>('0' + c % 10);
+}
+} // namespace internal
+
+FMT_FUNC void vprint_rgb(rgb fd, string_view format, format_args args)
+{
+ char escape_fd[] = "\x1b[38;2;000;000;000m";
+ internal::to_esc(fd.r, escape_fd, 7);
+ internal::to_esc(fd.g, escape_fd, 11);
+ internal::to_esc(fd.b, escape_fd, 15);
+
+ std::fputs(escape_fd, stdout);
+ vprint(format, args);
+ std::fputs(internal::data::RESET_COLOR, stdout);
+}
+
+FMT_FUNC void vprint_rgb(rgb fd, rgb bg, string_view format, format_args args)
+{
+ char escape_fd[] = "\x1b[38;2;000;000;000m"; // foreground color
+ char escape_bg[] = "\x1b[48;2;000;000;000m"; // background color
+ internal::to_esc(fd.r, escape_fd, 7);
+ internal::to_esc(fd.g, escape_fd, 11);
+ internal::to_esc(fd.b, escape_fd, 15);
+
+ internal::to_esc(bg.r, escape_bg, 7);
+ internal::to_esc(bg.g, escape_bg, 11);
+ internal::to_esc(bg.b, escape_bg, 15);
+
+ std::fputs(escape_fd, stdout);
+ std::fputs(escape_bg, stdout);
+ vprint(format, args);
+ std::fputs(internal::data::RESET_COLOR, stdout);
+}
+#endif
+
+FMT_FUNC locale locale_provider::locale()
+{
+ return fmt::locale();
+}
+
+FMT_END_NAMESPACE
+
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+
+#endif // FMT_FORMAT_INL_H_
diff --git a/src/include/spdlog/fmt/bundled/format.h b/src/include/spdlog/fmt/bundled/format.h
new file mode 100644
index 0000000000000000000000000000000000000000..60001f36326200e8bcaa27990d51453572ad1c72
--- /dev/null
+++ b/src/include/spdlog/fmt/bundled/format.h
@@ -0,0 +1,4716 @@
+/*
+ Formatting library for C++
+
+ Copyright (c) 2012 - present, Victor Zverovich
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FMT_FORMAT_H_
+#define FMT_FORMAT_H_
+
+#include <algorithm>
+#include <cassert>
+#include <cmath>
+#include <cstring>
+#include <limits>
+#include <memory>
+#include <stdexcept>
+#include <stdint.h>
+
+#ifdef __clang__
+#define FMT_CLANG_VERSION (__clang_major__ * 100 + __clang_minor__)
+#else
+#define FMT_CLANG_VERSION 0
+#endif
+
+#ifdef __INTEL_COMPILER
+#define FMT_ICC_VERSION __INTEL_COMPILER
+#elif defined(__ICL)
+#define FMT_ICC_VERSION __ICL
+#else
+#define FMT_ICC_VERSION 0
+#endif
+
+#include "core.h"
+
+#if FMT_GCC_VERSION >= 406 || FMT_CLANG_VERSION
+#pragma GCC diagnostic push
+
+// Disable the warning about declaration shadowing because it affects too
+// many valid cases.
+#pragma GCC diagnostic ignored "-Wshadow"
+
+// Disable the warning about implicit conversions that may change the sign of
+// an integer; silencing it otherwise would require many explicit casts.
+#pragma GCC diagnostic ignored "-Wsign-conversion"
+#endif
+
+#ifdef _SECURE_SCL
+#define FMT_SECURE_SCL _SECURE_SCL
+#else
+#define FMT_SECURE_SCL 0
+#endif
+
+#if FMT_SECURE_SCL
+#include <iterator>
+#endif
+
+#ifdef __has_builtin
+#define FMT_HAS_BUILTIN(x) __has_builtin(x)
+#else
+#define FMT_HAS_BUILTIN(x) 0
+#endif
+
+#ifdef __GNUC_LIBSTD__
+#define FMT_GNUC_LIBSTD_VERSION (__GNUC_LIBSTD__ * 100 + __GNUC_LIBSTD_MINOR__)
+#endif
+
+#ifndef FMT_THROW
+#if FMT_EXCEPTIONS
+#if FMT_MSC_VER
+FMT_BEGIN_NAMESPACE
+namespace internal {
+template<typename Exception>
+inline void do_throw(const Exception &x)
+{
+ // Silence unreachable code warnings in MSVC because these are nearly
+ // impossible to fix in a generic code.
+ volatile bool b = true;
+ if (b)
+ throw x;
+}
+} // namespace internal
+FMT_END_NAMESPACE
+#define FMT_THROW(x) fmt::internal::do_throw(x)
+#else
+#define FMT_THROW(x) throw x
+#endif
+#else
+#define FMT_THROW(x) \
+ do \
+ { \
+ static_cast<void>(sizeof(x)); \
+ assert(false); \
+ } while (false);
+#endif
+#endif
+
+#ifndef FMT_USE_USER_DEFINED_LITERALS
+// For Intel's compiler both it and the system gcc/msc must support UDLs.
+#if (FMT_HAS_FEATURE(cxx_user_literals) || FMT_GCC_VERSION >= 407 || FMT_MSC_VER >= 1900) && (!FMT_ICC_VERSION || FMT_ICC_VERSION >= 1500)
+#define FMT_USE_USER_DEFINED_LITERALS 1
+#else
+#define FMT_USE_USER_DEFINED_LITERALS 0
+#endif
+#endif
+
+#if FMT_USE_USER_DEFINED_LITERALS && !defined(FMT_ICC_VERSION) && \
+ ((FMT_GCC_VERSION >= 600 && __cplusplus >= 201402L) || (defined(FMT_CLANG_VERSION) && FMT_CLANG_VERSION >= 304))
+#define FMT_UDL_TEMPLATE 1
+#else
+#define FMT_UDL_TEMPLATE 0
+#endif
+
+#ifndef FMT_USE_EXTERN_TEMPLATES
+#ifndef FMT_HEADER_ONLY
+#define FMT_USE_EXTERN_TEMPLATES ((FMT_CLANG_VERSION >= 209 && __cplusplus >= 201103L) || (FMT_GCC_VERSION >= 303 && FMT_HAS_GXX_CXX11))
+#else
+#define FMT_USE_EXTERN_TEMPLATES 0
+#endif
+#endif
+
+#if FMT_HAS_GXX_CXX11 || FMT_HAS_FEATURE(cxx_trailing_return) || FMT_MSC_VER >= 1600
+#define FMT_USE_TRAILING_RETURN 1
+#else
+#define FMT_USE_TRAILING_RETURN 0
+#endif
+
+#if FMT_HAS_GXX_CXX11 || FMT_HAS_FEATURE(cxx_rvalue_references) || FMT_MSC_VER >= 1600
+#define FMT_USE_RVALUE_REFERENCES 1
+#else
+#define FMT_USE_RVALUE_REFERENCES 0
+#endif
+
+#ifndef FMT_USE_GRISU
+#define FMT_USE_GRISU 0
+#endif
+
+// __builtin_clz is broken in clang with Microsoft CodeGen:
+// https://github.com/fmtlib/fmt/issues/519
+#ifndef _MSC_VER
+#if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clz)
+#define FMT_BUILTIN_CLZ(n) __builtin_clz(n)
+#endif
+
+#if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clzll)
+#define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n)
+#endif
+#endif
+
+// A workaround for gcc 4.4 that doesn't support union members with ctors.
+#if (FMT_GCC_VERSION && FMT_GCC_VERSION <= 404) || (FMT_MSC_VER && FMT_MSC_VER <= 1800)
+#define FMT_UNION struct
+#else
+#define FMT_UNION union
+#endif
+
+// Some compilers masquerade as both MSVC and GCC-likes or otherwise support
+// __builtin_clz and __builtin_clzll, so only define FMT_BUILTIN_CLZ using the
+// MSVC intrinsics if the clz and clzll builtins are not available.
+#if FMT_MSC_VER && !defined(FMT_BUILTIN_CLZLL) && !defined(_MANAGED)
+#include <intrin.h> // _BitScanReverse, _BitScanReverse64
+
+FMT_BEGIN_NAMESPACE
+namespace internal {
+// Avoid Clang with Microsoft CodeGen's -Wunknown-pragmas warning.
+#ifndef __clang__
+#pragma intrinsic(_BitScanReverse)
+#endif
+inline uint32_t clz(uint32_t x)
+{
+ unsigned long r = 0;
+ _BitScanReverse(&r, x);
+
+ assert(x != 0);
+// Static analysis complains about using uninitialized data
+// "r", but the only way that can happen is if "x" is 0,
+// which the callers guarantee to not happen.
+#pragma warning(suppress : 6102)
+ return 31 - r;
+}
+#define FMT_BUILTIN_CLZ(n) fmt::internal::clz(n)
+
+#if defined(_WIN64) && !defined(__clang__)
+#pragma intrinsic(_BitScanReverse64)
+#endif
+
+inline uint32_t clzll(uint64_t x)
+{
+ unsigned long r = 0;
+#ifdef _WIN64
+ _BitScanReverse64(&r, x);
+#else
+ // Scan the high 32 bits.
+ if (_BitScanReverse(&r, static_cast<uint32_t>(x >> 32)))
+ return 63 - (r + 32);
+
+ // Scan the low 32 bits.
+ _BitScanReverse(&r, static_cast<uint32_t>(x));
+#endif
+
+ assert(x != 0);
+// Static analysis complains about using uninitialized data
+// "r", but the only way that can happen is if "x" is 0,
+// which the callers guarantee to not happen.
+#pragma warning(suppress : 6102)
+ return 63 - r;
+}
+#define FMT_BUILTIN_CLZLL(n) fmt::internal::clzll(n)
+} // namespace internal
+FMT_END_NAMESPACE
+#endif
+
+FMT_BEGIN_NAMESPACE
+namespace internal {
+
+// An equivalent of `*reinterpret_cast<Dest*>(&source)` that doesn't produce
+// undefined behavior (e.g. due to type aliasing).
+// Example: uint64_t d = bit_cast<uint64_t>(2.718);
+template<typename Dest, typename Source>
+inline Dest bit_cast(const Source &source)
+{
+ static_assert(sizeof(Dest) == sizeof(Source), "size mismatch");
+ Dest dest;
+ std::memcpy(&dest, &source, sizeof(dest));
+ return dest;
+}
+
+// An implementation of begin and end for pre-C++11 compilers such as gcc 4.
+template<typename C>
+FMT_CONSTEXPR auto begin(const C &c) -> decltype(c.begin())
+{
+ return c.begin();
+}
+template<typename T, std::size_t N>
+FMT_CONSTEXPR T *begin(T (&array)[N]) FMT_NOEXCEPT
+{
+ return array;
+}
+template<typename C>
+FMT_CONSTEXPR auto end(const C &c) -> decltype(c.end())
+{
+ return c.end();
+}
+template<typename T, std::size_t N>
+FMT_CONSTEXPR T *end(T (&array)[N]) FMT_NOEXCEPT
+{
+ return array + N;
+}
+
+// For std::result_of in gcc 4.4.
+template<typename Result>
+struct function
+{
+ template<typename T>
+ struct result
+ {
+ typedef Result type;
+ };
+};
+
+struct dummy_int
+{
+ int data[2];
+ operator int() const
+ {
+ return 0;
+ }
+};
+typedef std::numeric_limits<internal::dummy_int> fputil;
+
+// Dummy implementations of system functions such as signbit and ecvt called
+// if the latter are not available.
+inline dummy_int signbit(...)
+{
+ return dummy_int();
+}
+inline dummy_int _ecvt_s(...)
+{
+ return dummy_int();
+}
+inline dummy_int isinf(...)
+{
+ return dummy_int();
+}
+inline dummy_int _finite(...)
+{
+ return dummy_int();
+}
+inline dummy_int isnan(...)
+{
+ return dummy_int();
+}
+inline dummy_int _isnan(...)
+{
+ return dummy_int();
+}
+
+// A handmade floating-point number f * pow(2, e).
+class fp
+{
+private:
+ typedef uint64_t significand_type;
+
+ // All sizes are in bits.
+ static FMT_CONSTEXPR_DECL const int char_size = std::numeric_limits<unsigned char>::digits;
+ // Subtract 1 to account for an implicit most significant bit in the
+ // normalized form.
+ static FMT_CONSTEXPR_DECL const int double_significand_size = std::numeric_limits<double>::digits - 1;
+ static FMT_CONSTEXPR_DECL const uint64_t implicit_bit = 1ull << double_significand_size;
+
+public:
+ significand_type f;
+ int e;
+
+ static FMT_CONSTEXPR_DECL const int significand_size = sizeof(significand_type) * char_size;
+
+ fp(uint64_t f, int e)
+ : f(f)
+ , e(e)
+ {
+ }
+
+ // Constructs fp from an IEEE754 double. It is a template to prevent compile
+ // errors on platforms where double is not IEEE754.
+ template<typename Double>
+ explicit fp(Double d)
+ {
+ // Assume double is in the format [sign][exponent][significand].
+ typedef std::numeric_limits<Double> limits;
+ const int double_size = sizeof(Double) * char_size;
+ const int exponent_size = double_size - double_significand_size - 1; // -1 for sign
+ const uint64_t significand_mask = implicit_bit - 1;
+ const uint64_t exponent_mask = (~0ull >> 1) & ~significand_mask;
+ const int exponent_bias = (1 << exponent_size) - limits::max_exponent - 1;
+ auto u = bit_cast<uint64_t>(d);
+ auto biased_e = (u & exponent_mask) >> double_significand_size;
+ f = u & significand_mask;
+ if (biased_e != 0)
+ f += implicit_bit;
+ else
+ biased_e = 1; // Subnormals use biased exponent 1 (min exponent).
+ e = static_cast<int>(biased_e - exponent_bias - double_significand_size);
+ }
+
+ // Normalizes the value converted from double and multiplied by (1 << SHIFT).
+ template<int SHIFT = 0>
+ void normalize()
+ {
+ // Handle subnormals.
+ auto shifted_implicit_bit = implicit_bit << SHIFT;
+ while ((f & shifted_implicit_bit) == 0)
+ {
+ f <<= 1;
+ --e;
+ }
+ // Subtract 1 to account for hidden bit.
+ auto offset = significand_size - double_significand_size - SHIFT - 1;
+ f <<= offset;
+ e -= offset;
+ }
+};
+
+// Returns an fp number representing x - y. Result may not be normalized.
+inline fp operator-(fp x, fp y)
+{
+ FMT_ASSERT(x.f >= y.f && x.e == y.e, "invalid operands");
+ return fp(x.f - y.f, x.e);
+}
+
+// Computes an fp number r with r.f = x.f * y.f / pow(2, 64) rounded to nearest
+// with half-up tie breaking, r.e = x.e + y.e + 64. Result may not be
+// normalized.
+fp operator*(fp x, fp y);
+
+// Returns cached power (of 10) c_k = c_k.f * pow(2, c_k.e) such that its
+// (binary) exponent satisfies min_exponent <= c_k.e <= min_exponent + 3.
+fp get_cached_power(int min_exponent, int &pow10_exponent);
+
+template<typename Allocator>
+typename Allocator::value_type *allocate(Allocator &alloc, std::size_t n)
+{
+#if __cplusplus >= 201103L || FMT_MSC_VER >= 1700
+ return std::allocator_traits<Allocator>::allocate(alloc, n);
+#else
+ return alloc.allocate(n);
+#endif
+}
+
+// A helper function to suppress bogus "conditional expression is constant"
+// warnings.
+template<typename T>
+inline T const_check(T value)
+{
+ return value;
+}
+} // namespace internal
+FMT_END_NAMESPACE
+
+namespace std {
+// Standard permits specialization of std::numeric_limits. This specialization
+// is used to resolve ambiguity between isinf and std::isinf in glibc:
+// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48891
+// and the same for isnan and signbit.
+template<>
+class numeric_limits<fmt::internal::dummy_int> : public std::numeric_limits<int>
+{
+public:
+ // Portable version of isinf.
+ template<typename T>
+ static bool isinfinity(T x)
+ {
+ using namespace fmt::internal;
+ // The resolution "priority" is:
+ // isinf macro > std::isinf > ::isinf > fmt::internal::isinf
+ if (const_check(sizeof(isinf(x)) != sizeof(dummy_int)))
+ return isinf(x) != 0;
+ return !_finite(static_cast<double>(x));
+ }
+
+ // Portable version of isnan.
+ template<typename T>
+ static bool isnotanumber(T x)
+ {
+ using namespace fmt::internal;
+ if (const_check(sizeof(isnan(x)) != sizeof(fmt::internal::dummy_int)))
+ return isnan(x) != 0;
+ return _isnan(static_cast<double>(x)) != 0;
+ }
+
+ // Portable version of signbit.
+ static bool isnegative(double x)
+ {
+ using namespace fmt::internal;
+ if (const_check(sizeof(signbit(x)) != sizeof(fmt::internal::dummy_int)))
+ return signbit(x) != 0;
+ if (x < 0)
+ return true;
+ if (!isnotanumber(x))
+ return false;
+ int dec = 0, sign = 0;
+ char buffer[2]; // The buffer size must be >= 2 or _ecvt_s will fail.
+ _ecvt_s(buffer, sizeof(buffer), x, 0, &dec, &sign);
+ return sign != 0;
+ }
+};
+} // namespace std
+
+FMT_BEGIN_NAMESPACE
+template<typename Range>
+class basic_writer;
+
+template<typename OutputIt, typename T = typename OutputIt::value_type>
+class output_range
+{
+private:
+ OutputIt it_;
+
+ // Unused yet.
+ typedef void sentinel;
+ sentinel end() const;
+
+public:
+ typedef OutputIt iterator;
+ typedef T value_type;
+
+ explicit output_range(OutputIt it)
+ : it_(it)
+ {
+ }
+ OutputIt begin() const
+ {
+ return it_;
+ }
+};
+
+// A range where begin() returns back_insert_iterator.
+template<typename Container>
+class back_insert_range : public output_range<std::back_insert_iterator<Container>>
+{
+ typedef output_range<std::back_insert_iterator<Container>> base;
+
+public:
+ typedef typename Container::value_type value_type;
+
+ back_insert_range(Container &c)
+ : base(std::back_inserter(c))
+ {
+ }
+ back_insert_range(typename base::iterator it)
+ : base(it)
+ {
+ }
+};
+
+typedef basic_writer<back_insert_range<internal::buffer>> writer;
+typedef basic_writer<back_insert_range<internal::wbuffer>> wwriter;
+
+/** A formatting error such as invalid format string. */
+class format_error : public std::runtime_error
+{
+public:
+ explicit format_error(const char *message)
+ : std::runtime_error(message)
+ {
+ }
+
+ explicit format_error(const std::string &message)
+ : std::runtime_error(message)
+ {
+ }
+};
+
+namespace internal {
+
+#if FMT_SECURE_SCL
+template<typename T>
+struct checked
+{
+ typedef stdext::checked_array_iterator<T *> type;
+};
+
+// Make a checked iterator to avoid warnings on MSVC.
+template<typename T>
+inline stdext::checked_array_iterator<T *> make_checked(T *p, std::size_t size)
+{
+ return {p, size};
+}
+#else
+template<typename T>
+struct checked
+{
+ typedef T *type;
+};
+template<typename T>
+inline T *make_checked(T *p, std::size_t)
+{
+ return p;
+}
+#endif
+
+template<typename T>
+template<typename U>
+void basic_buffer<T>::append(const U *begin, const U *end)
+{
+ std::size_t new_size = size_ + internal::to_unsigned(end - begin);
+ reserve(new_size);
+ std::uninitialized_copy(begin, end, internal::make_checked(ptr_, capacity_) + size_);
+ size_ = new_size;
+}
+} // namespace internal
+
+// A wrapper around std::locale used to reduce compile times since <locale>
+// is very heavy.
+class locale;
+
+class locale_provider
+{
+public:
+ virtual ~locale_provider() {}
+ virtual fmt::locale locale();
+};
+
+// The number of characters to store in the basic_memory_buffer object itself
+// to avoid dynamic memory allocation.
+enum
+{
+ inline_buffer_size = 500
+};
+
+/**
+ \rst
+ A dynamically growing memory buffer for trivially copyable/constructible types
+ with the first ``SIZE`` elements stored in the object itself.
+
+ You can use one of the following typedefs for common character types:
+
+ +----------------+------------------------------+
+ | Type | Definition |
+ +================+==============================+
+ | memory_buffer | basic_memory_buffer<char> |
+ +----------------+------------------------------+
+ | wmemory_buffer | basic_memory_buffer<wchar_t> |
+ +----------------+------------------------------+
+
+ **Example**::
+
+ fmt::memory_buffer out;
+ format_to(out, "The answer is {}.", 42);
+
+ This will write the following output to the ``out`` object:
+
+ .. code-block:: none
+
+ The answer is 42.
+
+ The output can be converted to an ``std::string`` with ``to_string(out)``.
+ \endrst
+ */
+template<typename T, std::size_t SIZE = inline_buffer_size, typename Allocator = std::allocator<T>>
+class basic_memory_buffer : private Allocator, public internal::basic_buffer<T>
+{
+private:
+ T store_[SIZE];
+
+ // Deallocate memory allocated by the buffer.
+ void deallocate()
+ {
+ T *data = this->data();
+ if (data != store_)
+ Allocator::deallocate(data, this->capacity());
+ }
+
+protected:
+ void grow(std::size_t size) FMT_OVERRIDE;
+
+public:
+ explicit basic_memory_buffer(const Allocator &alloc = Allocator())
+ : Allocator(alloc)
+ {
+ this->set(store_, SIZE);
+ }
+ ~basic_memory_buffer()
+ {
+ deallocate();
+ }
+
+private:
+ // Move data from other to this buffer.
+ void move(basic_memory_buffer &other)
+ {
+ Allocator &this_alloc = *this, &other_alloc = other;
+ this_alloc = std::move(other_alloc);
+ T *data = other.data();
+ std::size_t size = other.size(), capacity = other.capacity();
+ if (data == other.store_)
+ {
+ this->set(store_, capacity);
+ std::uninitialized_copy(other.store_, other.store_ + size, internal::make_checked(store_, capacity));
+ }
+ else
+ {
+ this->set(data, capacity);
+ // Set pointer to the inline array so that delete is not called
+ // when deallocating.
+ other.set(other.store_, 0);
+ }
+ this->resize(size);
+ }
+
+public:
+ /**
+ \rst
+ Constructs a :class:`fmt::basic_memory_buffer` object moving the content
+ of the other object to it.
+ \endrst
+ */
+ basic_memory_buffer(basic_memory_buffer &&other)
+ {
+ move(other);
+ }
+
+ /**
+ \rst
+ Moves the content of the other ``basic_memory_buffer`` object to this one.
+ \endrst
+ */
+ basic_memory_buffer &operator=(basic_memory_buffer &&other)
+ {
+ assert(this != &other);
+ deallocate();
+ move(other);
+ return *this;
+ }
+
+ // Returns a copy of the allocator associated with this buffer.
+ Allocator get_allocator() const
+ {
+ return *this;
+ }
+};
+
+template<typename T, std::size_t SIZE, typename Allocator>
+void basic_memory_buffer<T, SIZE, Allocator>::grow(std::size_t size)
+{
+ std::size_t old_capacity = this->capacity();
+ std::size_t new_capacity = old_capacity + old_capacity / 2;
+ if (size > new_capacity)
+ new_capacity = size;
+ T *old_data = this->data();
+ T *new_data = internal::allocate<Allocator>(*this, new_capacity);
+ // The following code doesn't throw, so the raw pointer above doesn't leak.
+ std::uninitialized_copy(old_data, old_data + this->size(), internal::make_checked(new_data, new_capacity));
+ this->set(new_data, new_capacity);
+ // deallocate must not throw according to the standard, but even if it does,
+ // the buffer already uses the new storage and will deallocate it in
+ // destructor.
+ if (old_data != store_)
+ Allocator::deallocate(old_data, old_capacity);
+}
+
+typedef basic_memory_buffer<char> memory_buffer;
+typedef basic_memory_buffer<wchar_t> wmemory_buffer;
+
+/**
+ \rst
+ A fixed-size memory buffer. For a dynamically growing buffer use
+ :class:`fmt::basic_memory_buffer`.
+
+ Trying to increase the buffer size past the initial capacity will throw
+ ``std::runtime_error``.
+ \endrst
+ */
+template<typename Char>
+class basic_fixed_buffer : public internal::basic_buffer<Char>
+{
+public:
+ /**
+ \rst
+ Constructs a :class:`fmt::basic_fixed_buffer` object for *array* of the
+ given size.
+ \endrst
+ */
+ basic_fixed_buffer(Char *array, std::size_t size)
+ {
+ this->set(array, size);
+ }
+
+ /**
+ \rst
+ Constructs a :class:`fmt::basic_fixed_buffer` object for *array* of the
+ size known at compile time.
+ \endrst
+ */
+ template<std::size_t SIZE>
+ explicit basic_fixed_buffer(Char (&array)[SIZE])
+ {
+ this->set(array, SIZE);
+ }
+
+protected:
+ FMT_API void grow(std::size_t size) FMT_OVERRIDE;
+};
+
+namespace internal {
+
+template<typename Char>
+struct char_traits;
+
+template<>
+struct char_traits<char>
+{
+ // Formats a floating-point number.
+ template<typename T>
+ FMT_API static int format_float(char *buffer, std::size_t size, const char *format, int precision, T value);
+};
+
+template<>
+struct char_traits<wchar_t>
+{
+ template<typename T>
+ FMT_API static int format_float(wchar_t *buffer, std::size_t size, const wchar_t *format, int precision, T value);
+};
+
+#if FMT_USE_EXTERN_TEMPLATES
+extern template int char_traits<char>::format_float<double>(
+ char *buffer, std::size_t size, const char *format, int precision, double value);
+extern template int char_traits<char>::format_float<long double>(
+ char *buffer, std::size_t size, const char *format, int precision, long double value);
+
+extern template int char_traits<wchar_t>::format_float<double>(
+ wchar_t *buffer, std::size_t size, const wchar_t *format, int precision, double value);
+extern template int char_traits<wchar_t>::format_float<long double>(
+ wchar_t *buffer, std::size_t size, const wchar_t *format, int precision, long double value);
+#endif
+
+template<typename Container>
+inline typename std::enable_if<is_contiguous<Container>::value, typename checked<typename Container::value_type>::type>::type reserve(
+ std::back_insert_iterator<Container> &it, std::size_t n)
+{
+ Container &c = internal::get_container(it);
+ std::size_t size = c.size();
+ c.resize(size + n);
+ return make_checked(&c[size], n);
+}
+
+template<typename Iterator>
+inline Iterator &reserve(Iterator &it, std::size_t)
+{
+ return it;
+}
+
+template<typename Char>
+class null_terminating_iterator;
+
+template<typename Char>
+FMT_CONSTEXPR_DECL const Char *pointer_from(null_terminating_iterator<Char> it);
+
+// An iterator that produces a null terminator on *end. This simplifies parsing
+// and allows comparing the performance of processing a null-terminated string
+// vs string_view.
+template<typename Char>
+class null_terminating_iterator
+{
+public:
+ typedef std::ptrdiff_t difference_type;
+ typedef Char value_type;
+ typedef const Char *pointer;
+ typedef const Char &reference;
+ typedef std::random_access_iterator_tag iterator_category;
+
+ null_terminating_iterator()
+ : ptr_(0)
+ , end_(0)
+ {
+ }
+
+ FMT_CONSTEXPR null_terminating_iterator(const Char *ptr, const Char *end)
+ : ptr_(ptr)
+ , end_(end)
+ {
+ }
+
+ template<typename Range>
+ FMT_CONSTEXPR explicit null_terminating_iterator(const Range &r)
+ : ptr_(r.begin())
+ , end_(r.end())
+ {
+ }
+
+ null_terminating_iterator &operator=(const Char *ptr)
+ {
+ assert(ptr <= end_);
+ ptr_ = ptr;
+ return *this;
+ }
+
+ FMT_CONSTEXPR Char operator*() const
+ {
+ return ptr_ != end_ ? *ptr_ : 0;
+ }
+
+ FMT_CONSTEXPR null_terminating_iterator operator++()
+ {
+ ++ptr_;
+ return *this;
+ }
+
+ FMT_CONSTEXPR null_terminating_iterator operator++(int)
+ {
+ null_terminating_iterator result(*this);
+ ++ptr_;
+ return result;
+ }
+
+ FMT_CONSTEXPR null_terminating_iterator operator--()
+ {
+ --ptr_;
+ return *this;
+ }
+
+ FMT_CONSTEXPR null_terminating_iterator operator+(difference_type n)
+ {
+ return null_terminating_iterator(ptr_ + n, end_);
+ }
+
+ FMT_CONSTEXPR null_terminating_iterator operator-(difference_type n)
+ {
+ return null_terminating_iterator(ptr_ - n, end_);
+ }
+
+ FMT_CONSTEXPR null_terminating_iterator operator+=(difference_type n)
+ {
+ ptr_ += n;
+ return *this;
+ }
+
+ FMT_CONSTEXPR difference_type operator-(null_terminating_iterator other) const
+ {
+ return ptr_ - other.ptr_;
+ }
+
+ FMT_CONSTEXPR bool operator!=(null_terminating_iterator other) const
+ {
+ return ptr_ != other.ptr_;
+ }
+
+ bool operator>=(null_terminating_iterator other) const
+ {
+ return ptr_ >= other.ptr_;
+ }
+
+ // This should be a friend specialization pointer_from<Char> but the latter
+ // doesn't compile by gcc 5.1 due to a compiler bug.
+ template<typename CharT>
+ friend FMT_CONSTEXPR_DECL const CharT *pointer_from(null_terminating_iterator<CharT> it);
+
+private:
+ const Char *ptr_;
+ const Char *end_;
+};
+
+template<typename T>
+FMT_CONSTEXPR const T *pointer_from(const T *p)
+{
+ return p;
+}
+
+template<typename Char>
+FMT_CONSTEXPR const Char *pointer_from(null_terminating_iterator<Char> it)
+{
+ return it.ptr_;
+}
+
+// An output iterator that counts the number of objects written to it and
+// discards them.
+template<typename T>
+class counting_iterator
+{
+private:
+ std::size_t count_;
+ mutable T blackhole_;
+
+public:
+ typedef std::output_iterator_tag iterator_category;
+ typedef T value_type;
+ typedef std::ptrdiff_t difference_type;
+ typedef T *pointer;
+ typedef T &reference;
+ typedef counting_iterator _Unchecked_type; // Mark iterator as checked.
+
+ counting_iterator()
+ : count_(0)
+ {
+ }
+
+ std::size_t count() const
+ {
+ return count_;
+ }
+
+ counting_iterator &operator++()
+ {
+ ++count_;
+ return *this;
+ }
+
+ counting_iterator operator++(int)
+ {
+ auto it = *this;
+ ++*this;
+ return it;
+ }
+
+ T &operator*() const
+ {
+ return blackhole_;
+ }
+};
+
+// An output iterator that truncates the output and counts the number of objects
+// written to it.
+template<typename OutputIt>
+class truncating_iterator
+{
+private:
+ typedef std::iterator_traits<OutputIt> traits;
+
+ OutputIt out_;
+ std::size_t limit_;
+ std::size_t count_;
+ mutable typename traits::value_type blackhole_;
+
+public:
+ typedef std::output_iterator_tag iterator_category;
+ typedef typename traits::value_type value_type;
+ typedef typename traits::difference_type difference_type;
+ typedef typename traits::pointer pointer;
+ typedef typename traits::reference reference;
+ typedef truncating_iterator _Unchecked_type; // Mark iterator as checked.
+
+ truncating_iterator(OutputIt out, std::size_t limit)
+ : out_(out)
+ , limit_(limit)
+ , count_(0)
+ {
+ }
+
+ OutputIt base() const
+ {
+ return out_;
+ }
+ std::size_t count() const
+ {
+ return count_;
+ }
+
+ truncating_iterator &operator++()
+ {
+ if (count_++ < limit_)
+ ++out_;
+ return *this;
+ }
+
+ truncating_iterator operator++(int)
+ {
+ auto it = *this;
+ ++*this;
+ return it;
+ }
+
+ reference operator*() const
+ {
+ return count_ < limit_ ? *out_ : blackhole_;
+ }
+};
+
+// Returns true if value is negative, false otherwise.
+// Same as (value < 0) but doesn't produce warnings if T is an unsigned type.
+template<typename T>
+FMT_CONSTEXPR typename std::enable_if<std::numeric_limits<T>::is_signed, bool>::type is_negative(T value)
+{
+ return value < 0;
+}
+template<typename T>
+FMT_CONSTEXPR typename std::enable_if<!std::numeric_limits<T>::is_signed, bool>::type is_negative(T)
+{
+ return false;
+}
+
+template<typename T>
+struct int_traits
+{
+ // Smallest of uint32_t and uint64_t that is large enough to represent
+ // all values of T.
+ typedef typename std::conditional<std::numeric_limits<T>::digits <= 32, uint32_t, uint64_t>::type main_type;
+};
+
+// Static data is placed in this class template to allow header-only
+// configuration.
+template<typename T = void>
+struct FMT_API basic_data
+{
+ static const uint32_t POWERS_OF_10_32[];
+ static const uint64_t POWERS_OF_10_64[];
+ static const uint64_t POW10_SIGNIFICANDS[];
+ static const int16_t POW10_EXPONENTS[];
+ static const char DIGITS[];
+ static const char RESET_COLOR[];
+ static const wchar_t WRESET_COLOR[];
+};
+
+#if FMT_USE_EXTERN_TEMPLATES
+extern template struct basic_data<void>;
+#endif
+
+typedef basic_data<> data;
+
+#ifdef FMT_BUILTIN_CLZLL
+// Returns the number of decimal digits in n. Leading zeros are not counted
+// except for n == 0 in which case count_digits returns 1.
+inline unsigned count_digits(uint64_t n)
+{
+ // Based on http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog10
+ // and the benchmark https://github.com/localvoid/cxx-benchmark-count-digits.
+ int t = (64 - FMT_BUILTIN_CLZLL(n | 1)) * 1233 >> 12;
+ return to_unsigned(t) - (n < data::POWERS_OF_10_64[t]) + 1;
+}
+#else
+// Fallback version of count_digits used when __builtin_clz is not available.
+inline unsigned count_digits(uint64_t n)
+{
+ unsigned count = 1;
+ for (;;)
+ {
+ // Integer division is slow so do it for a group of four digits instead
+ // of for every digit. The idea comes from the talk by Alexandrescu
+ // "Three Optimization Tips for C++". See speed-test for a comparison.
+ if (n < 10)
+ return count;
+ if (n < 100)
+ return count + 1;
+ if (n < 1000)
+ return count + 2;
+ if (n < 10000)
+ return count + 3;
+ n /= 10000u;
+ count += 4;
+ }
+}
+#endif
+
+#if FMT_HAS_CPP_ATTRIBUTE(always_inline)
+#define FMT_ALWAYS_INLINE __attribute__((always_inline))
+#else
+#define FMT_ALWAYS_INLINE
+#endif
+
+template<typename Handler>
+inline char *lg(uint32_t n, Handler h) FMT_ALWAYS_INLINE;
+
+// Computes g = floor(log10(n)) and calls h.on<g>(n);
+template<typename Handler>
+inline char *lg(uint32_t n, Handler h)
+{
+ return n < 100 ? n < 10 ? h.template on<0>(n) : h.template on<1>(n)
+ : n < 1000000 ? n < 10000 ? n < 1000 ? h.template on<2>(n) : h.template on<3>(n)
+ : n < 100000 ? h.template on<4>(n) : h.template on<5>(n)
+ : n < 100000000 ? n < 10000000 ? h.template on<6>(n) : h.template on<7>(n)
+ : n < 1000000000 ? h.template on<8>(n) : h.template on<9>(n);
+}
+
+// An lg handler that formats a decimal number.
+// Usage: lg(n, decimal_formatter(buffer));
+class decimal_formatter
+{
+private:
+ char *buffer_;
+
+ void write_pair(unsigned N, uint32_t index)
+ {
+ std::memcpy(buffer_ + N, data::DIGITS + index * 2, 2);
+ }
+
+public:
+ explicit decimal_formatter(char *buf)
+ : buffer_(buf)
+ {
+ }
+
+ template<unsigned N>
+ char *on(uint32_t u)
+ {
+ if (N == 0)
+ {
+ *buffer_ = static_cast<char>(u) + '0';
+ }
+ else if (N == 1)
+ {
+ write_pair(0, u);
+ }
+ else
+ {
+ // The idea of using 4.32 fixed-point numbers is based on
+ // https://github.com/jeaiii/itoa
+ unsigned n = N - 1;
+ unsigned a = n / 5 * n * 53 / 16;
+ uint64_t t = ((1ULL << (32 + a)) / data::POWERS_OF_10_32[n] + 1 - n / 9);
+ t = ((t * u) >> a) + n / 5 * 4;
+ write_pair(0, t >> 32);
+ for (unsigned i = 2; i < N; i += 2)
+ {
+ t = 100ULL * static_cast<uint32_t>(t);
+ write_pair(i, t >> 32);
+ }
+ if (N % 2 == 0)
+ {
+ buffer_[N] = static_cast<char>((10ULL * static_cast<uint32_t>(t)) >> 32) + '0';
+ }
+ }
+ return buffer_ += N + 1;
+ }
+};
+
+// An lg handler that formats a decimal number with a terminating null.
+class decimal_formatter_null : public decimal_formatter
+{
+public:
+ explicit decimal_formatter_null(char *buf)
+ : decimal_formatter(buf)
+ {
+ }
+
+ template<unsigned N>
+ char *on(uint32_t u)
+ {
+ char *buf = decimal_formatter::on<N>(u);
+ *buf = '\0';
+ return buf;
+ }
+};
+
+#ifdef FMT_BUILTIN_CLZ
+// Optional version of count_digits for better performance on 32-bit platforms.
+inline unsigned count_digits(uint32_t n)
+{
+ int t = (32 - FMT_BUILTIN_CLZ(n | 1)) * 1233 >> 12;
+ return to_unsigned(t) - (n < data::POWERS_OF_10_32[t]) + 1;
+}
+#endif
+
+// A functor that doesn't add a thousands separator.
+struct no_thousands_sep
+{
+ typedef char char_type;
+
+ template<typename Char>
+ void operator()(Char *)
+ {
+ }
+};
+
+// A functor that adds a thousands separator.
+template<typename Char>
+class add_thousands_sep
+{
+private:
+ basic_string_view<Char> sep_;
+
+ // Index of a decimal digit with the least significant digit having index 0.
+ unsigned digit_index_;
+
+public:
+ typedef Char char_type;
+
+ explicit add_thousands_sep(basic_string_view<Char> sep)
+ : sep_(sep)
+ , digit_index_(0)
+ {
+ }
+
+ void operator()(Char *&buffer)
+ {
+ if (++digit_index_ % 3 != 0)
+ return;
+ buffer -= sep_.size();
+ std::uninitialized_copy(sep_.data(), sep_.data() + sep_.size(), internal::make_checked(buffer, sep_.size()));
+ }
+};
+
+template<typename Char>
+FMT_API Char thousands_sep(locale_provider *lp);
+
+// Formats a decimal unsigned integer value writing into buffer.
+// thousands_sep is a functor that is called after writing each char to
+// add a thousands separator if necessary.
+template<typename UInt, typename Char, typename ThousandsSep>
+inline Char *format_decimal(Char *buffer, UInt value, unsigned num_digits, ThousandsSep thousands_sep)
+{
+ buffer += num_digits;
+ Char *end = buffer;
+ while (value >= 100)
+ {
+ // Integer division is slow so do it for a group of two digits instead
+ // of for every digit. The idea comes from the talk by Alexandrescu
+ // "Three Optimization Tips for C++". See speed-test for a comparison.
+ unsigned index = static_cast<unsigned>((value % 100) * 2);
+ value /= 100;
+ *--buffer = data::DIGITS[index + 1];
+ thousands_sep(buffer);
+ *--buffer = data::DIGITS[index];
+ thousands_sep(buffer);
+ }
+ if (value < 10)
+ {
+ *--buffer = static_cast<char>('0' + value);
+ return end;
+ }
+ unsigned index = static_cast<unsigned>(value * 2);
+ *--buffer = data::DIGITS[index + 1];
+ thousands_sep(buffer);
+ *--buffer = data::DIGITS[index];
+ return end;
+}
+
+template<typename UInt, typename Iterator, typename ThousandsSep>
+inline Iterator format_decimal(Iterator out, UInt value, unsigned num_digits, ThousandsSep sep)
+{
+ typedef typename ThousandsSep::char_type char_type;
+ // Buffer should be large enough to hold all digits (digits10 + 1) and null.
+ char_type buffer[std::numeric_limits<UInt>::digits10 + 2];
+ format_decimal(buffer, value, num_digits, sep);
+ return std::copy_n(buffer, num_digits, out);
+}
+
+template<typename It, typename UInt>
+inline It format_decimal(It out, UInt value, unsigned num_digits)
+{
+ return format_decimal(out, value, num_digits, no_thousands_sep());
+}
+
+template<unsigned BASE_BITS, typename Char, typename UInt>
+inline Char *format_uint(Char *buffer, UInt value, unsigned num_digits, bool upper = false)
+{
+ buffer += num_digits;
+ Char *end = buffer;
+ do
+ {
+ const char *digits = upper ? "0123456789ABCDEF" : "0123456789abcdef";
+ unsigned digit = (value & ((1 << BASE_BITS) - 1));
+ *--buffer = BASE_BITS < 4 ? static_cast<char>('0' + digit) : digits[digit];
+ } while ((value >>= BASE_BITS) != 0);
+ return end;
+}
+
+template<unsigned BASE_BITS, typename It, typename UInt>
+inline It format_uint(It out, UInt value, unsigned num_digits, bool upper = false)
+{
+ // Buffer should be large enough to hold all digits (digits / BASE_BITS + 1)
+ // and null.
+ char buffer[std::numeric_limits<UInt>::digits / BASE_BITS + 2];
+ format_uint<BASE_BITS>(buffer, value, num_digits, upper);
+ return std::copy_n(buffer, num_digits, out);
+}
+
+#ifndef _WIN32
+#define FMT_USE_WINDOWS_H 0
+#elif !defined(FMT_USE_WINDOWS_H)
+#define FMT_USE_WINDOWS_H 1
+#endif
+
+// Define FMT_USE_WINDOWS_H to 0 to disable use of windows.h.
+// All the functionality that relies on it will be disabled too.
+#if FMT_USE_WINDOWS_H
+// A converter from UTF-8 to UTF-16.
+// It is only provided for Windows since other systems support UTF-8 natively.
+class utf8_to_utf16
+{
+private:
+ wmemory_buffer buffer_;
+
+public:
+ FMT_API explicit utf8_to_utf16(string_view s);
+ operator wstring_view() const
+ {
+ return wstring_view(&buffer_[0], size());
+ }
+ size_t size() const
+ {
+ return buffer_.size() - 1;
+ }
+ const wchar_t *c_str() const
+ {
+ return &buffer_[0];
+ }
+ std::wstring str() const
+ {
+ return std::wstring(&buffer_[0], size());
+ }
+};
+
+// A converter from UTF-16 to UTF-8.
+// It is only provided for Windows since other systems support UTF-8 natively.
+class utf16_to_utf8
+{
+private:
+ memory_buffer buffer_;
+
+public:
+ utf16_to_utf8() {}
+ FMT_API explicit utf16_to_utf8(wstring_view s);
+ operator string_view() const
+ {
+ return string_view(&buffer_[0], size());
+ }
+ size_t size() const
+ {
+ return buffer_.size() - 1;
+ }
+ const char *c_str() const
+ {
+ return &buffer_[0];
+ }
+ std::string str() const
+ {
+ return std::string(&buffer_[0], size());
+ }
+
+ // Performs conversion returning a system error code instead of
+ // throwing exception on conversion error. This method may still throw
+ // in case of memory allocation error.
+ FMT_API int convert(wstring_view s);
+};
+
+FMT_API void format_windows_error(fmt::internal::buffer &out, int error_code, fmt::string_view message) FMT_NOEXCEPT;
+#endif
+
+template<typename T = void>
+struct null
+{
+};
+} // namespace internal
+
+struct monostate
+{
+};
+
+/**
+ \rst
+ Visits an argument dispatching to the appropriate visit method based on
+ the argument type. For example, if the argument type is ``double`` then
+ ``vis(value)`` will be called with the value of type ``double``.
+ \endrst
+ */
+template<typename Visitor, typename Context>
+FMT_CONSTEXPR typename internal::result_of<Visitor(int)>::type visit(Visitor &&vis, basic_format_arg<Context> arg)
+{
+ typedef typename Context::char_type char_type;
+ switch (arg.type_)
+ {
+ case internal::none_type:
+ break;
+ case internal::named_arg_type:
+ FMT_ASSERT(false, "invalid argument type");
+ break;
+ case internal::int_type:
+ return vis(arg.value_.int_value);
+ case internal::uint_type:
+ return vis(arg.value_.uint_value);
+ case internal::long_long_type:
+ return vis(arg.value_.long_long_value);
+ case internal::ulong_long_type:
+ return vis(arg.value_.ulong_long_value);
+ case internal::bool_type:
+ return vis(arg.value_.int_value != 0);
+ case internal::char_type:
+ return vis(static_cast<char_type>(arg.value_.int_value));
+ case internal::double_type:
+ return vis(arg.value_.double_value);
+ case internal::long_double_type:
+ return vis(arg.value_.long_double_value);
+ case internal::cstring_type:
+ return vis(arg.value_.string.value);
+ case internal::string_type:
+ return vis(basic_string_view<char_type>(arg.value_.string.value, arg.value_.string.size));
+ case internal::pointer_type:
+ return vis(arg.value_.pointer);
+ case internal::custom_type:
+ return vis(typename basic_format_arg<Context>::handle(arg.value_.custom));
+ }
+ return vis(monostate());
+}
+
+enum alignment
+{
+ ALIGN_DEFAULT,
+ ALIGN_LEFT,
+ ALIGN_RIGHT,
+ ALIGN_CENTER,
+ ALIGN_NUMERIC
+};
+
+// Flags.
+enum
+{
+ SIGN_FLAG = 1,
+ PLUS_FLAG = 2,
+ MINUS_FLAG = 4,
+ HASH_FLAG = 8
+};
+
+enum format_spec_tag
+{
+ fill_tag,
+ align_tag,
+ width_tag,
+ type_tag
+};
+
+// Format specifier.
+template<typename T, format_spec_tag>
+class format_spec
+{
+private:
+ T value_;
+
+public:
+ typedef T value_type;
+
+ explicit format_spec(T value)
+ : value_(value)
+ {
+ }
+
+ T value() const
+ {
+ return value_;
+ }
+};
+
+// template <typename Char>
+// typedef format_spec<Char, fill_tag> fill_spec;
+template<typename Char>
+class fill_spec : public format_spec<Char, fill_tag>
+{
+public:
+ explicit fill_spec(Char value)
+ : format_spec<Char, fill_tag>(value)
+ {
+ }
+};
+
+typedef format_spec<unsigned, width_tag> width_spec;
+typedef format_spec<char, type_tag> type_spec;
+
+// An empty format specifier.
+struct empty_spec
+{
+};
+
+// An alignment specifier.
+struct align_spec : empty_spec
+{
+ unsigned width_;
+ // Fill is always wchar_t and cast to char if necessary to avoid having
+ // two specialization of AlignSpec and its subclasses.
+ wchar_t fill_;
+ alignment align_;
+
+ FMT_CONSTEXPR align_spec(unsigned width, wchar_t fill, alignment align = ALIGN_DEFAULT)
+ : width_(width)
+ , fill_(fill)
+ , align_(align)
+ {
+ }
+
+ FMT_CONSTEXPR unsigned width() const
+ {
+ return width_;
+ }
+ FMT_CONSTEXPR wchar_t fill() const
+ {
+ return fill_;
+ }
+ FMT_CONSTEXPR alignment align() const
+ {
+ return align_;
+ }
+
+ int precision() const
+ {
+ return -1;
+ }
+};
+
+// Format specifiers.
+template<typename Char>
+class basic_format_specs : public align_spec
+{
+public:
+ unsigned flags_;
+ int precision_;
+ Char type_;
+
+ FMT_CONSTEXPR basic_format_specs(unsigned width = 0, char type = 0, wchar_t fill = ' ')
+ : align_spec(width, fill)
+ , flags_(0)
+ , precision_(-1)
+ , type_(type)
+ {
+ }
+
+ FMT_CONSTEXPR bool flag(unsigned f) const
+ {
+ return (flags_ & f) != 0;
+ }
+ FMT_CONSTEXPR int precision() const
+ {
+ return precision_;
+ }
+ FMT_CONSTEXPR Char type() const
+ {
+ return type_;
+ }
+};
+
+typedef basic_format_specs<char> format_specs;
+
+template<typename Char, typename ErrorHandler>
+FMT_CONSTEXPR unsigned basic_parse_context<Char, ErrorHandler>::next_arg_id()
+{
+ if (next_arg_id_ >= 0)
+ return internal::to_unsigned(next_arg_id_++);
+ on_error("cannot switch from manual to automatic argument indexing");
+ return 0;
+}
+
+struct format_string
+{
+};
+
+namespace internal {
+
+template<typename Char, typename Handler>
+FMT_CONSTEXPR void handle_int_type_spec(Char spec, Handler &&handler)
+{
+ switch (spec)
+ {
+ case 0:
+ case 'd':
+ handler.on_dec();
+ break;
+ case 'x':
+ case 'X':
+ handler.on_hex();
+ break;
+ case 'b':
+ case 'B':
+ handler.on_bin();
+ break;
+ case 'o':
+ handler.on_oct();
+ break;
+ case 'n':
+ handler.on_num();
+ break;
+ default:
+ handler.on_error();
+ }
+}
+
+template<typename Char, typename Handler>
+FMT_CONSTEXPR void handle_float_type_spec(Char spec, Handler &&handler)
+{
+ switch (spec)
+ {
+ case 0:
+ case 'g':
+ case 'G':
+ handler.on_general();
+ break;
+ case 'e':
+ case 'E':
+ handler.on_exp();
+ break;
+ case 'f':
+ case 'F':
+ handler.on_fixed();
+ break;
+ case 'a':
+ case 'A':
+ handler.on_hex();
+ break;
+ default:
+ handler.on_error();
+ break;
+ }
+}
+
+template<typename Char, typename Handler>
+FMT_CONSTEXPR void handle_char_specs(const basic_format_specs<Char> &specs, Handler &&handler)
+{
+ if (specs.type() && specs.type() != 'c')
+ {
+ handler.on_int();
+ return;
+ }
+ if (specs.align() == ALIGN_NUMERIC || specs.flag(~0u) != 0)
+ handler.on_error("invalid format specifier for char");
+ handler.on_char();
+}
+
+template<typename Char, typename Handler>
+FMT_CONSTEXPR void handle_cstring_type_spec(Char spec, Handler &&handler)
+{
+ if (spec == 0 || spec == 's')
+ handler.on_string();
+ else if (spec == 'p')
+ handler.on_pointer();
+ else
+ handler.on_error("invalid type specifier");
+}
+
+template<typename Char, typename ErrorHandler>
+FMT_CONSTEXPR void check_string_type_spec(Char spec, ErrorHandler &&eh)
+{
+ if (spec != 0 && spec != 's')
+ eh.on_error("invalid type specifier");
+}
+
+template<typename Char, typename ErrorHandler>
+FMT_CONSTEXPR void check_pointer_type_spec(Char spec, ErrorHandler &&eh)
+{
+ if (spec != 0 && spec != 'p')
+ eh.on_error("invalid type specifier");
+}
+
+template<typename ErrorHandler>
+class int_type_checker : private ErrorHandler
+{
+public:
+ FMT_CONSTEXPR explicit int_type_checker(ErrorHandler eh)
+ : ErrorHandler(eh)
+ {
+ }
+
+ FMT_CONSTEXPR void on_dec() {}
+ FMT_CONSTEXPR void on_hex() {}
+ FMT_CONSTEXPR void on_bin() {}
+ FMT_CONSTEXPR void on_oct() {}
+ FMT_CONSTEXPR void on_num() {}
+
+ FMT_CONSTEXPR void on_error()
+ {
+ ErrorHandler::on_error("invalid type specifier");
+ }
+};
+
+template<typename ErrorHandler>
+class float_type_checker : private ErrorHandler
+{
+public:
+ FMT_CONSTEXPR explicit float_type_checker(ErrorHandler eh)
+ : ErrorHandler(eh)
+ {
+ }
+
+ FMT_CONSTEXPR void on_general() {}
+ FMT_CONSTEXPR void on_exp() {}
+ FMT_CONSTEXPR void on_fixed() {}
+ FMT_CONSTEXPR void on_hex() {}
+
+ FMT_CONSTEXPR void on_error()
+ {
+ ErrorHandler::on_error("invalid type specifier");
+ }
+};
+
+template<typename ErrorHandler, typename CharType>
+class char_specs_checker : public ErrorHandler
+{
+private:
+ CharType type_;
+
+public:
+ FMT_CONSTEXPR char_specs_checker(CharType type, ErrorHandler eh)
+ : ErrorHandler(eh)
+ , type_(type)
+ {
+ }
+
+ FMT_CONSTEXPR void on_int()
+ {
+ handle_int_type_spec(type_, int_type_checker<ErrorHandler>(*this));
+ }
+ FMT_CONSTEXPR void on_char() {}
+};
+
+template<typename ErrorHandler>
+class cstring_type_checker : public ErrorHandler
+{
+public:
+ FMT_CONSTEXPR explicit cstring_type_checker(ErrorHandler eh)
+ : ErrorHandler(eh)
+ {
+ }
+
+ FMT_CONSTEXPR void on_string() {}
+ FMT_CONSTEXPR void on_pointer() {}
+};
+
+template<typename Context>
+void arg_map<Context>::init(const basic_format_args<Context> &args)
+{
+ if (map_)
+ return;
+ map_ = new entry[args.max_size()];
+ bool use_values = args.type(max_packed_args - 1) == internal::none_type;
+ if (use_values)
+ {
+ for (unsigned i = 0; /*nothing*/; ++i)
+ {
+ internal::type arg_type = args.type(i);
+ switch (arg_type)
+ {
+ case internal::none_type:
+ return;
+ case internal::named_arg_type:
+ push_back(args.values_[i]);
+ break;
+ default:
+ break; // Do nothing.
+ }
+ }
+ return;
+ }
+ for (unsigned i = 0;; ++i)
+ {
+ switch (args.args_[i].type_)
+ {
+ case internal::none_type:
+ return;
+ case internal::named_arg_type:
+ push_back(args.args_[i].value_);
+ break;
+ default:
+ break; // Do nothing.
+ }
+ }
+}
+
+template<typename Range>
+class arg_formatter_base
+{
+public:
+ typedef typename Range::value_type char_type;
+ typedef decltype(internal::declval<Range>().begin()) iterator;
+ typedef basic_format_specs<char_type> format_specs;
+
+private:
+ typedef basic_writer<Range> writer_type;
+ writer_type writer_;
+ format_specs &specs_;
+
+ FMT_DISALLOW_COPY_AND_ASSIGN(arg_formatter_base);
+
+ struct char_writer
+ {
+ char_type value;
+ template<typename It>
+ void operator()(It &&it) const
+ {
+ *it++ = value;
+ }
+ };
+
+ void write_char(char_type value)
+ {
+ writer_.write_padded(1, specs_, char_writer{value});
+ }
+
+ void write_pointer(const void *p)
+ {
+ format_specs specs = specs_;
+ specs.flags_ = HASH_FLAG;
+ specs.type_ = 'x';
+ writer_.write_int(reinterpret_cast<uintptr_t>(p), specs);
+ }
+
+protected:
+ writer_type &writer()
+ {
+ return writer_;
+ }
+ format_specs &spec()
+ {
+ return specs_;
+ }
+ iterator out()
+ {
+ return writer_.out();
+ }
+
+ void write(bool value)
+ {
+ writer_.write_str(string_view(value ? "true" : "false"), specs_);
+ }
+
+ void write(const char_type *value)
+ {
+ if (!value)
+ FMT_THROW(format_error("string pointer is null"));
+ auto length = std::char_traits<char_type>::length(value);
+ writer_.write_str(basic_string_view<char_type>(value, length), specs_);
+ }
+
+public:
+ arg_formatter_base(Range r, format_specs &s)
+ : writer_(r)
+ , specs_(s)
+ {
+ }
+
+ iterator operator()(monostate)
+ {
+ FMT_ASSERT(false, "invalid argument type");
+ return out();
+ }
+
+ template<typename T>
+ typename std::enable_if<std::is_integral<T>::value, iterator>::type operator()(T value)
+ {
+ // MSVC2013 fails to compile separate overloads for bool and char_type so
+ // use std::is_same instead.
+ if (std::is_same<T, bool>::value)
+ {
+ if (specs_.type_)
+ return (*this)(value ? 1 : 0);
+ write(value != 0);
+ }
+ else if (std::is_same<T, char_type>::value)
+ {
+ internal::handle_char_specs(specs_, char_spec_handler(*this, static_cast<char_type>(value)));
+ }
+ else
+ {
+ writer_.write_int(value, specs_);
+ }
+ return out();
+ }
+
+ template<typename T>
+ typename std::enable_if<std::is_floating_point<T>::value, iterator>::type operator()(T value)
+ {
+ writer_.write_double(value, specs_);
+ return out();
+ }
+
+ struct char_spec_handler : internal::error_handler
+ {
+ arg_formatter_base &formatter;
+ char_type value;
+
+ char_spec_handler(arg_formatter_base &f, char_type val)
+ : formatter(f)
+ , value(val)
+ {
+ }
+
+ void on_int()
+ {
+ formatter.writer_.write_int(value, formatter.specs_);
+ }
+ void on_char()
+ {
+ formatter.write_char(value);
+ }
+ };
+
+ struct cstring_spec_handler : internal::error_handler
+ {
+ arg_formatter_base &formatter;
+ const char_type *value;
+
+ cstring_spec_handler(arg_formatter_base &f, const char_type *val)
+ : formatter(f)
+ , value(val)
+ {
+ }
+
+ void on_string()
+ {
+ formatter.write(value);
+ }
+ void on_pointer()
+ {
+ formatter.write_pointer(value);
+ }
+ };
+
+ iterator operator()(const char_type *value)
+ {
+ internal::handle_cstring_type_spec(specs_.type_, cstring_spec_handler(*this, value));
+ return out();
+ }
+
+ iterator operator()(basic_string_view<char_type> value)
+ {
+ internal::check_string_type_spec(specs_.type_, internal::error_handler());
+ writer_.write_str(value, specs_);
+ return out();
+ }
+
+ iterator operator()(const void *value)
+ {
+ check_pointer_type_spec(specs_.type_, internal::error_handler());
+ write_pointer(value);
+ return out();
+ }
+};
+
+template<typename S>
+struct is_format_string : std::integral_constant<bool, std::is_base_of<format_string, S>::value>
+{
+};
+
+template<typename Char>
+FMT_CONSTEXPR bool is_name_start(Char c)
+{
+ return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || '_' == c;
+}
+
+// Parses the input as an unsigned integer. This function assumes that the
+// first character is a digit and presence of a non-digit character at the end.
+// it: an iterator pointing to the beginning of the input range.
+template<typename Iterator, typename ErrorHandler>
+FMT_CONSTEXPR unsigned parse_nonnegative_int(Iterator &it, ErrorHandler &&eh)
+{
+ assert('0' <= *it && *it <= '9');
+ unsigned value = 0;
+ // Convert to unsigned to prevent a warning.
+ unsigned max_int = (std::numeric_limits<int>::max)();
+ unsigned big = max_int / 10;
+ do
+ {
+ // Check for overflow.
+ if (value > big)
+ {
+ value = max_int + 1;
+ break;
+ }
+ value = value * 10 + unsigned(*it - '0');
+ // Workaround for MSVC "setup_exception stack overflow" error:
+ auto next = it;
+ ++next;
+ it = next;
+ } while ('0' <= *it && *it <= '9');
+ if (value > max_int)
+ eh.on_error("number is too big");
+ return value;
+}
+
+template<typename Char, typename Context>
+class custom_formatter : public function<bool>
+{
+private:
+ Context &ctx_;
+
+public:
+ explicit custom_formatter(Context &ctx)
+ : ctx_(ctx)
+ {
+ }
+
+ bool operator()(typename basic_format_arg<Context>::handle h) const
+ {
+ h.format(ctx_);
+ return true;
+ }
+
+ template<typename T>
+ bool operator()(T) const
+ {
+ return false;
+ }
+};
+
+template<typename T>
+struct is_integer
+{
+ enum
+ {
+ value =
+ std::is_integral<T>::value && !std::is_same<T, bool>::value && !std::is_same<T, char>::value && !std::is_same<T, wchar_t>::value
+ };
+};
+
+template<typename ErrorHandler>
+class width_checker : public function<unsigned long long>
+{
+public:
+ explicit FMT_CONSTEXPR width_checker(ErrorHandler &eh)
+ : handler_(eh)
+ {
+ }
+
+ template<typename T>
+ FMT_CONSTEXPR typename std::enable_if<is_integer<T>::value, unsigned long long>::type operator()(T value)
+ {
+ if (is_negative(value))
+ handler_.on_error("negative width");
+ return static_cast<unsigned long long>(value);
+ }
+
+ template<typename T>
+ FMT_CONSTEXPR typename std::enable_if<!is_integer<T>::value, unsigned long long>::type operator()(T)
+ {
+ handler_.on_error("width is not integer");
+ return 0;
+ }
+
+private:
+ ErrorHandler &handler_;
+};
+
+template<typename ErrorHandler>
+class precision_checker : public function<unsigned long long>
+{
+public:
+ explicit FMT_CONSTEXPR precision_checker(ErrorHandler &eh)
+ : handler_(eh)
+ {
+ }
+
+ template<typename T>
+ FMT_CONSTEXPR typename std::enable_if<is_integer<T>::value, unsigned long long>::type operator()(T value)
+ {
+ if (is_negative(value))
+ handler_.on_error("negative precision");
+ return static_cast<unsigned long long>(value);
+ }
+
+ template<typename T>
+ FMT_CONSTEXPR typename std::enable_if<!is_integer<T>::value, unsigned long long>::type operator()(T)
+ {
+ handler_.on_error("precision is not integer");
+ return 0;
+ }
+
+private:
+ ErrorHandler &handler_;
+};
+
+// A format specifier handler that sets fields in basic_format_specs.
+template<typename Char>
+class specs_setter
+{
+public:
+ explicit FMT_CONSTEXPR specs_setter(basic_format_specs<Char> &specs)
+ : specs_(specs)
+ {
+ }
+
+ FMT_CONSTEXPR specs_setter(const specs_setter &other)
+ : specs_(other.specs_)
+ {
+ }
+
+ FMT_CONSTEXPR void on_align(alignment align)
+ {
+ specs_.align_ = align;
+ }
+ FMT_CONSTEXPR void on_fill(Char fill)
+ {
+ specs_.fill_ = fill;
+ }
+ FMT_CONSTEXPR void on_plus()
+ {
+ specs_.flags_ |= SIGN_FLAG | PLUS_FLAG;
+ }
+ FMT_CONSTEXPR void on_minus()
+ {
+ specs_.flags_ |= MINUS_FLAG;
+ }
+ FMT_CONSTEXPR void on_space()
+ {
+ specs_.flags_ |= SIGN_FLAG;
+ }
+ FMT_CONSTEXPR void on_hash()
+ {
+ specs_.flags_ |= HASH_FLAG;
+ }
+
+ FMT_CONSTEXPR void on_zero()
+ {
+ specs_.align_ = ALIGN_NUMERIC;
+ specs_.fill_ = '0';
+ }
+
+ FMT_CONSTEXPR void on_width(unsigned width)
+ {
+ specs_.width_ = width;
+ }
+ FMT_CONSTEXPR void on_precision(unsigned precision)
+ {
+ specs_.precision_ = static_cast<int>(precision);
+ }
+ FMT_CONSTEXPR void end_precision() {}
+
+ FMT_CONSTEXPR void on_type(Char type)
+ {
+ specs_.type_ = type;
+ }
+
+protected:
+ basic_format_specs<Char> &specs_;
+};
+
+// A format specifier handler that checks if specifiers are consistent with the
+// argument type.
+template<typename Handler>
+class specs_checker : public Handler
+{
+public:
+ FMT_CONSTEXPR specs_checker(const Handler &handler, internal::type arg_type)
+ : Handler(handler)
+ , arg_type_(arg_type)
+ {
+ }
+
+ FMT_CONSTEXPR specs_checker(const specs_checker &other)
+ : Handler(other)
+ , arg_type_(other.arg_type_)
+ {
+ }
+
+ FMT_CONSTEXPR void on_align(alignment align)
+ {
+ if (align == ALIGN_NUMERIC)
+ require_numeric_argument();
+ Handler::on_align(align);
+ }
+
+ FMT_CONSTEXPR void on_plus()
+ {
+ check_sign();
+ Handler::on_plus();
+ }
+
+ FMT_CONSTEXPR void on_minus()
+ {
+ check_sign();
+ Handler::on_minus();
+ }
+
+ FMT_CONSTEXPR void on_space()
+ {
+ check_sign();
+ Handler::on_space();
+ }
+
+ FMT_CONSTEXPR void on_hash()
+ {
+ require_numeric_argument();
+ Handler::on_hash();
+ }
+
+ FMT_CONSTEXPR void on_zero()
+ {
+ require_numeric_argument();
+ Handler::on_zero();
+ }
+
+ FMT_CONSTEXPR void end_precision()
+ {
+ if (is_integral(arg_type_) || arg_type_ == pointer_type)
+ this->on_error("precision not allowed for this argument type");
+ }
+
+private:
+ FMT_CONSTEXPR void require_numeric_argument()
+ {
+ if (!is_arithmetic(arg_type_))
+ this->on_error("format specifier requires numeric argument");
+ }
+
+ FMT_CONSTEXPR void check_sign()
+ {
+ require_numeric_argument();
+ if (is_integral(arg_type_) && arg_type_ != int_type && arg_type_ != long_long_type && arg_type_ != internal::char_type)
+ {
+ this->on_error("format specifier requires signed argument");
+ }
+ }
+
+ internal::type arg_type_;
+};
+
+template<template<typename> class Handler, typename T, typename Context, typename ErrorHandler>
+FMT_CONSTEXPR void set_dynamic_spec(T &value, basic_format_arg<Context> arg, ErrorHandler eh)
+{
+ unsigned long long big_value = visit(Handler<ErrorHandler>(eh), arg);
+ if (big_value > (std::numeric_limits<int>::max)())
+ eh.on_error("number is too big");
+ value = static_cast<T>(big_value);
+}
+
+struct auto_id
+{
+};
+
+// The standard format specifier handler with checking.
+template<typename Context>
+class specs_handler : public specs_setter<typename Context::char_type>
+{
+public:
+ typedef typename Context::char_type char_type;
+
+ FMT_CONSTEXPR specs_handler(basic_format_specs<char_type> &specs, Context &ctx)
+ : specs_setter<char_type>(specs)
+ , context_(ctx)
+ {
+ }
+
+ template<typename Id>
+ FMT_CONSTEXPR void on_dynamic_width(Id arg_id)
+ {
+ set_dynamic_spec<width_checker>(this->specs_.width_, get_arg(arg_id), context_.error_handler());
+ }
+
+ template<typename Id>
+ FMT_CONSTEXPR void on_dynamic_precision(Id arg_id)
+ {
+ set_dynamic_spec<precision_checker>(this->specs_.precision_, get_arg(arg_id), context_.error_handler());
+ }
+
+ void on_error(const char *message)
+ {
+ context_.on_error(message);
+ }
+
+private:
+ FMT_CONSTEXPR basic_format_arg<Context> get_arg(auto_id)
+ {
+ return context_.next_arg();
+ }
+
+ template<typename Id>
+ FMT_CONSTEXPR basic_format_arg<Context> get_arg(Id arg_id)
+ {
+ context_.parse_context().check_arg_id(arg_id);
+ return context_.get_arg(arg_id);
+ }
+
+ Context &context_;
+};
+
+// An argument reference.
+template<typename Char>
+struct arg_ref
+{
+ enum Kind
+ {
+ NONE,
+ INDEX,
+ NAME
+ };
+
+ FMT_CONSTEXPR arg_ref()
+ : kind(NONE)
+ , index(0)
+ {
+ }
+ FMT_CONSTEXPR explicit arg_ref(unsigned index)
+ : kind(INDEX)
+ , index(index)
+ {
+ }
+ explicit arg_ref(basic_string_view<Char> name)
+ : kind(NAME)
+ , name(name)
+ {
+ }
+
+ FMT_CONSTEXPR arg_ref &operator=(unsigned idx)
+ {
+ kind = INDEX;
+ index = idx;
+ return *this;
+ }
+
+ Kind kind;
+ FMT_UNION
+ {
+ unsigned index;
+ basic_string_view<Char> name;
+ };
+};
+
+// Format specifiers with width and precision resolved at formatting rather
+// than parsing time to allow re-using the same parsed specifiers with
+// differents sets of arguments (precompilation of format strings).
+template<typename Char>
+struct dynamic_format_specs : basic_format_specs<Char>
+{
+ arg_ref<Char> width_ref;
+ arg_ref<Char> precision_ref;
+};
+
+// Format spec handler that saves references to arguments representing dynamic
+// width and precision to be resolved at formatting time.
+template<typename ParseContext>
+class dynamic_specs_handler : public specs_setter<typename ParseContext::char_type>
+{
+public:
+ typedef typename ParseContext::char_type char_type;
+
+ FMT_CONSTEXPR dynamic_specs_handler(dynamic_format_specs<char_type> &specs, ParseContext &ctx)
+ : specs_setter<char_type>(specs)
+ , specs_(specs)
+ , context_(ctx)
+ {
+ }
+
+ FMT_CONSTEXPR dynamic_specs_handler(const dynamic_specs_handler &other)
+ : specs_setter<char_type>(other)
+ , specs_(other.specs_)
+ , context_(other.context_)
+ {
+ }
+
+ template<typename Id>
+ FMT_CONSTEXPR void on_dynamic_width(Id arg_id)
+ {
+ specs_.width_ref = make_arg_ref(arg_id);
+ }
+
+ template<typename Id>
+ FMT_CONSTEXPR void on_dynamic_precision(Id arg_id)
+ {
+ specs_.precision_ref = make_arg_ref(arg_id);
+ }
+
+ FMT_CONSTEXPR void on_error(const char *message)
+ {
+ context_.on_error(message);
+ }
+
+private:
+ typedef arg_ref<char_type> arg_ref_type;
+
+ template<typename Id>
+ FMT_CONSTEXPR arg_ref_type make_arg_ref(Id arg_id)
+ {
+ context_.check_arg_id(arg_id);
+ return arg_ref_type(arg_id);
+ }
+
+ FMT_CONSTEXPR arg_ref_type make_arg_ref(auto_id)
+ {
+ return arg_ref_type(context_.next_arg_id());
+ }
+
+ dynamic_format_specs<char_type> &specs_;
+ ParseContext &context_;
+};
+
+template<typename Iterator, typename IDHandler>
+FMT_CONSTEXPR Iterator parse_arg_id(Iterator it, IDHandler &&handler)
+{
+ typedef typename std::iterator_traits<Iterator>::value_type char_type;
+ char_type c = *it;
+ if (c == '}' || c == ':')
+ {
+ handler();
+ return it;
+ }
+ if (c >= '0' && c <= '9')
+ {
+ unsigned index = parse_nonnegative_int(it, handler);
+ if (*it != '}' && *it != ':')
+ {
+ handler.on_error("invalid format string");
+ return it;
+ }
+ handler(index);
+ return it;
+ }
+ if (!is_name_start(c))
+ {
+ handler.on_error("invalid format string");
+ return it;
+ }
+ auto start = it;
+ do
+ {
+ c = *++it;
+ } while (is_name_start(c) || ('0' <= c && c <= '9'));
+ handler(basic_string_view<char_type>(pointer_from(start), to_unsigned(it - start)));
+ return it;
+}
+
+// Adapts SpecHandler to IDHandler API for dynamic width.
+template<typename SpecHandler, typename Char>
+struct width_adapter
+{
+ explicit FMT_CONSTEXPR width_adapter(SpecHandler &h)
+ : handler(h)
+ {
+ }
+
+ FMT_CONSTEXPR void operator()()
+ {
+ handler.on_dynamic_width(auto_id());
+ }
+ FMT_CONSTEXPR void operator()(unsigned id)
+ {
+ handler.on_dynamic_width(id);
+ }
+ FMT_CONSTEXPR void operator()(basic_string_view<Char> id)
+ {
+ handler.on_dynamic_width(id);
+ }
+
+ FMT_CONSTEXPR void on_error(const char *message)
+ {
+ handler.on_error(message);
+ }
+
+ SpecHandler &handler;
+};
+
+// Adapts SpecHandler to IDHandler API for dynamic precision.
+template<typename SpecHandler, typename Char>
+struct precision_adapter
+{
+ explicit FMT_CONSTEXPR precision_adapter(SpecHandler &h)
+ : handler(h)
+ {
+ }
+
+ FMT_CONSTEXPR void operator()()
+ {
+ handler.on_dynamic_precision(auto_id());
+ }
+ FMT_CONSTEXPR void operator()(unsigned id)
+ {
+ handler.on_dynamic_precision(id);
+ }
+ FMT_CONSTEXPR void operator()(basic_string_view<Char> id)
+ {
+ handler.on_dynamic_precision(id);
+ }
+
+ FMT_CONSTEXPR void on_error(const char *message)
+ {
+ handler.on_error(message);
+ }
+
+ SpecHandler &handler;
+};
+
+// Parses standard format specifiers and sends notifications about parsed
+// components to handler.
+// it: an iterator pointing to the beginning of a null-terminated range of
+// characters, possibly emulated via null_terminating_iterator, representing
+// format specifiers.
+template<typename Iterator, typename SpecHandler>
+FMT_CONSTEXPR Iterator parse_format_specs(Iterator it, SpecHandler &&handler)
+{
+ typedef typename std::iterator_traits<Iterator>::value_type char_type;
+ char_type c = *it;
+ if (c == '}' || !c)
+ return it;
+
+ // Parse fill and alignment.
+ alignment align = ALIGN_DEFAULT;
+ int i = 1;
+ do
+ {
+ auto p = it + i;
+ switch (*p)
+ {
+ case '<':
+ align = ALIGN_LEFT;
+ break;
+ case '>':
+ align = ALIGN_RIGHT;
+ break;
+ case '=':
+ align = ALIGN_NUMERIC;
+ break;
+ case '^':
+ align = ALIGN_CENTER;
+ break;
+ }
+ if (align != ALIGN_DEFAULT)
+ {
+ if (p != it)
+ {
+ if (c == '{')
+ {
+ handler.on_error("invalid fill character '{'");
+ return it;
+ }
+ it += 2;
+ handler.on_fill(c);
+ }
+ else
+ ++it;
+ handler.on_align(align);
+ break;
+ }
+ } while (--i >= 0);
+
+ // Parse sign.
+ switch (*it)
+ {
+ case '+':
+ handler.on_plus();
+ ++it;
+ break;
+ case '-':
+ handler.on_minus();
+ ++it;
+ break;
+ case ' ':
+ handler.on_space();
+ ++it;
+ break;
+ }
+
+ if (*it == '#')
+ {
+ handler.on_hash();
+ ++it;
+ }
+
+ // Parse zero flag.
+ if (*it == '0')
+ {
+ handler.on_zero();
+ ++it;
+ }
+
+ // Parse width.
+ if ('0' <= *it && *it <= '9')
+ {
+ handler.on_width(parse_nonnegative_int(it, handler));
+ }
+ else if (*it == '{')
+ {
+ it = parse_arg_id(it + 1, width_adapter<SpecHandler, char_type>(handler));
+ if (*it++ != '}')
+ {
+ handler.on_error("invalid format string");
+ return it;
+ }
+ }
+
+ // Parse precision.
+ if (*it == '.')
+ {
+ ++it;
+ if ('0' <= *it && *it <= '9')
+ {
+ handler.on_precision(parse_nonnegative_int(it, handler));
+ }
+ else if (*it == '{')
+ {
+ it = parse_arg_id(it + 1, precision_adapter<SpecHandler, char_type>(handler));
+ if (*it++ != '}')
+ {
+ handler.on_error("invalid format string");
+ return it;
+ }
+ }
+ else
+ {
+ handler.on_error("missing precision specifier");
+ return it;
+ }
+ handler.end_precision();
+ }
+
+ // Parse type.
+ if (*it != '}' && *it)
+ handler.on_type(*it++);
+ return it;
+}
+
+template<typename Handler, typename Char>
+struct id_adapter
+{
+ FMT_CONSTEXPR explicit id_adapter(Handler &h)
+ : handler(h)
+ {
+ }
+
+ FMT_CONSTEXPR void operator()()
+ {
+ handler.on_arg_id();
+ }
+ FMT_CONSTEXPR void operator()(unsigned id)
+ {
+ handler.on_arg_id(id);
+ }
+ FMT_CONSTEXPR void operator()(basic_string_view<Char> id)
+ {
+ handler.on_arg_id(id);
+ }
+
+ FMT_CONSTEXPR void on_error(const char *message)
+ {
+ handler.on_error(message);
+ }
+
+ Handler &handler;
+};
+
+template<typename Iterator, typename Handler>
+FMT_CONSTEXPR void parse_format_string(Iterator it, Handler &&handler)
+{
+ typedef typename std::iterator_traits<Iterator>::value_type char_type;
+ auto start = it;
+ while (*it)
+ {
+ char_type ch = *it++;
+ if (ch != '{' && ch != '}')
+ continue;
+ if (*it == ch)
+ {
+ handler.on_text(start, it);
+ start = ++it;
+ continue;
+ }
+ if (ch == '}')
+ {
+ handler.on_error("unmatched '}' in format string");
+ return;
+ }
+ handler.on_text(start, it - 1);
+
+ it = parse_arg_id(it, id_adapter<Handler, char_type>(handler));
+ if (*it == '}')
+ {
+ handler.on_replacement_field(it);
+ }
+ else if (*it == ':')
+ {
+ ++it;
+ it = handler.on_format_specs(it);
+ if (*it != '}')
+ {
+ handler.on_error("unknown format specifier");
+ return;
+ }
+ }
+ else
+ {
+ handler.on_error("missing '}' in format string");
+ return;
+ }
+
+ start = ++it;
+ }
+ handler.on_text(start, it);
+}
+
+template<typename T, typename ParseContext>
+FMT_CONSTEXPR const typename ParseContext::char_type *parse_format_specs(ParseContext &ctx)
+{
+ // GCC 7.2 requires initializer.
+ formatter<T, typename ParseContext::char_type> f{};
+ return f.parse(ctx);
+}
+
+template<typename Char, typename ErrorHandler, typename... Args>
+class format_string_checker
+{
+public:
+ explicit FMT_CONSTEXPR format_string_checker(basic_string_view<Char> format_str, ErrorHandler eh)
+ : arg_id_(-1)
+ , context_(format_str, eh)
+ , parse_funcs_{&parse_format_specs<Args, parse_context_type>...}
+ {
+ }
+
+ FMT_CONSTEXPR void on_text(const Char *, const Char *) {}
+
+ FMT_CONSTEXPR void on_arg_id()
+ {
+ arg_id_ = context_.next_arg_id();
+ check_arg_id();
+ }
+ FMT_CONSTEXPR void on_arg_id(unsigned id)
+ {
+ arg_id_ = id;
+ context_.check_arg_id(id);
+ check_arg_id();
+ }
+ FMT_CONSTEXPR void on_arg_id(basic_string_view<Char>) {}
+
+ FMT_CONSTEXPR void on_replacement_field(const Char *) {}
+
+ FMT_CONSTEXPR const Char *on_format_specs(const Char *s)
+ {
+ context_.advance_to(s);
+ return to_unsigned(arg_id_) < NUM_ARGS ? parse_funcs_[arg_id_](context_) : s;
+ }
+
+ FMT_CONSTEXPR void on_error(const char *message)
+ {
+ context_.on_error(message);
+ }
+
+private:
+ typedef basic_parse_context<Char, ErrorHandler> parse_context_type;
+ enum
+ {
+ NUM_ARGS = sizeof...(Args)
+ };
+
+ FMT_CONSTEXPR void check_arg_id()
+ {
+ if (internal::to_unsigned(arg_id_) >= NUM_ARGS)
+ context_.on_error("argument index out of range");
+ }
+
+ // Format specifier parsing function.
+ typedef const Char *(*parse_func)(parse_context_type &);
+
+ int arg_id_;
+ parse_context_type context_;
+ parse_func parse_funcs_[NUM_ARGS > 0 ? NUM_ARGS : 1];
+};
+
+template<typename Char, typename ErrorHandler, typename... Args>
+FMT_CONSTEXPR bool check_format_string(basic_string_view<Char> s, ErrorHandler eh = ErrorHandler())
+{
+ format_string_checker<Char, ErrorHandler, Args...> checker(s, eh);
+ parse_format_string(s.begin(), checker);
+ return true;
+}
+
+template<typename... Args, typename String>
+void check_format_string(String format_str)
+{
+ FMT_CONSTEXPR_DECL bool invalid_format =
+ internal::check_format_string<char, internal::error_handler, Args...>(string_view(format_str.data(), format_str.size()));
+ (void)invalid_format;
+}
+
+// Specifies whether to format T using the standard formatter.
+// It is not possible to use get_type in formatter specialization directly
+// because of a bug in MSVC.
+template<typename Context, typename T>
+struct format_type : std::integral_constant<bool, get_type<Context, T>::value != custom_type>
+{
+};
+
+// Specifies whether to format enums.
+template<typename T, typename Enable = void>
+struct format_enum : std::integral_constant<bool, std::is_enum<T>::value>
+{
+};
+
+template<template<typename> class Handler, typename Spec, typename Context>
+void handle_dynamic_spec(Spec &value, arg_ref<typename Context::char_type> ref, Context &ctx)
+{
+ typedef typename Context::char_type char_type;
+ switch (ref.kind)
+ {
+ case arg_ref<char_type>::NONE:
+ break;
+ case arg_ref<char_type>::INDEX:
+ internal::set_dynamic_spec<Handler>(value, ctx.get_arg(ref.index), ctx.error_handler());
+ break;
+ case arg_ref<char_type>::NAME:
+ internal::set_dynamic_spec<Handler>(value, ctx.get_arg(ref.name), ctx.error_handler());
+ break;
+ }
+}
+} // namespace internal
+
+/** The default argument formatter. */
+template<typename Range>
+class arg_formatter : public internal::function<typename internal::arg_formatter_base<Range>::iterator>,
+ public internal::arg_formatter_base<Range>
+{
+private:
+ typedef typename Range::value_type char_type;
+ typedef internal::arg_formatter_base<Range> base;
+ typedef basic_format_context<typename base::iterator, char_type> context_type;
+
+ context_type &ctx_;
+
+public:
+ typedef Range range;
+ typedef typename base::iterator iterator;
+ typedef typename base::format_specs format_specs;
+
+ /**
+ \rst
+ Constructs an argument formatter object.
+ *ctx* is a reference to the formatting context,
+ *spec* contains format specifier information for standard argument types.
+ \endrst
+ */
+ arg_formatter(context_type &ctx, format_specs &spec)
+ : base(Range(ctx.out()), spec)
+ , ctx_(ctx)
+ {
+ }
+
+ using base::operator();
+
+ /** Formats an argument of a user-defined type. */
+ iterator operator()(typename basic_format_arg<context_type>::handle handle)
+ {
+ handle.format(ctx_);
+ return this->out();
+ }
+};
+
+/**
+ An error returned by an operating system or a language runtime,
+ for example a file opening error.
+*/
+class system_error : public std::runtime_error
+{
+private:
+ FMT_API void init(int err_code, string_view format_str, format_args args);
+
+protected:
+ int error_code_;
+
+ system_error()
+ : std::runtime_error("")
+ {
+ }
+
+public:
+ /**
+ \rst
+ Constructs a :class:`fmt::system_error` object with a description
+ formatted with `fmt::format_system_error`. *message* and additional
+ arguments passed into the constructor are formatted similarly to
+ `fmt::format`.
+
+ **Example**::
+
+ // This throws a system_error with the description
+ // cannot open file 'madeup': No such file or directory
+ // or similar (system message may vary).
+ const char *filename = "madeup";
+ std::FILE *file = std::fopen(filename, "r");
+ if (!file)
+ throw fmt::system_error(errno, "cannot open file '{}'", filename);
+ \endrst
+ */
+ template<typename... Args>
+ system_error(int error_code, string_view message, const Args &... args)
+ : std::runtime_error("")
+ {
+ init(error_code, message, make_format_args(args...));
+ }
+
+ int error_code() const
+ {
+ return error_code_;
+ }
+};
+
+/**
+ \rst
+ Formats an error returned by an operating system or a language runtime,
+ for example a file opening error, and writes it to *out* in the following
+ form:
+
+ .. parsed-literal::
+ *<message>*: *<system-message>*
+
+ where *<message>* is the passed message and *<system-message>* is
+ the system message corresponding to the error code.
+ *error_code* is a system error code as given by ``errno``.
+ If *error_code* is not a valid error code such as -1, the system message
+ may look like "Unknown error -1" and is platform-dependent.
+ \endrst
+ */
+FMT_API void format_system_error(internal::buffer &out, int error_code, fmt::string_view message) FMT_NOEXCEPT;
+
+/**
+ This template provides operations for formatting and writing data into a
+ character range.
+ */
+template<typename Range>
+class basic_writer
+{
+public:
+ typedef typename Range::value_type char_type;
+ typedef decltype(internal::declval<Range>().begin()) iterator;
+ typedef basic_format_specs<char_type> format_specs;
+
+private:
+ // Output iterator.
+ iterator out_;
+
+ std::unique_ptr<locale_provider> locale_;
+
+ FMT_DISALLOW_COPY_AND_ASSIGN(basic_writer);
+
+ iterator out() const
+ {
+ return out_;
+ }
+
+ // Attempts to reserve space for n extra characters in the output range.
+ // Returns a pointer to the reserved range or a reference to out_.
+ auto reserve(std::size_t n) -> decltype(internal::reserve(out_, n))
+ {
+ return internal::reserve(out_, n);
+ }
+
+ // Writes a value in the format
+ // <left-padding><value><right-padding>
+ // where <value> is written by f(it).
+ template<typename F>
+ void write_padded(std::size_t size, const align_spec &spec, F f);
+
+ template<typename F>
+ struct padded_int_writer
+ {
+ string_view prefix;
+ char_type fill;
+ std::size_t padding;
+ F f;
+
+ template<typename It>
+ void operator()(It &&it) const
+ {
+ if (prefix.size() != 0)
+ it = std::copy_n(prefix.data(), prefix.size(), it);
+ it = std::fill_n(it, padding, fill);
+ f(it);
+ }
+ };
+
+ // Writes an integer in the format
+ // <left-padding><prefix><numeric-padding><digits><right-padding>
+ // where <digits> are written by f(it).
+ template<typename Spec, typename F>
+ void write_int(unsigned num_digits, string_view prefix, const Spec &spec, F f)
+ {
+ std::size_t size = prefix.size() + num_digits;
+ char_type fill = static_cast<char_type>(spec.fill());
+ std::size_t padding = 0;
+ if (spec.align() == ALIGN_NUMERIC)
+ {
+ if (spec.width() > size)
+ {
+ padding = spec.width() - size;
+ size = spec.width();
+ }
+ }
+ else if (spec.precision() > static_cast<int>(num_digits))
+ {
+ size = prefix.size() + static_cast<std::size_t>(spec.precision());
+ padding = static_cast<std::size_t>(spec.precision()) - num_digits;
+ fill = '0';
+ }
+ align_spec as = spec;
+ if (spec.align() == ALIGN_DEFAULT)
+ as.align_ = ALIGN_RIGHT;
+ write_padded(size, as, padded_int_writer<F>{prefix, fill, padding, f});
+ }
+
+ // Writes a decimal integer.
+ template<typename Int>
+ void write_decimal(Int value)
+ {
+ typedef typename internal::int_traits<Int>::main_type main_type;
+ main_type abs_value = static_cast<main_type>(value);
+ bool is_negative = internal::is_negative(value);
+ if (is_negative)
+ abs_value = 0 - abs_value;
+ unsigned num_digits = internal::count_digits(abs_value);
+ auto &&it = reserve((is_negative ? 1 : 0) + num_digits);
+ if (is_negative)
+ *it++ = '-';
+ internal::format_decimal(it, abs_value, num_digits);
+ }
+
+ // The handle_int_type_spec handler that writes an integer.
+ template<typename Int, typename Spec>
+ struct int_writer
+ {
+ typedef typename internal::int_traits<Int>::main_type unsigned_type;
+
+ basic_writer<Range> &writer;
+ const Spec &spec;
+ unsigned_type abs_value;
+ char prefix[4];
+ unsigned prefix_size;
+
+ string_view get_prefix() const
+ {
+ return string_view(prefix, prefix_size);
+ }
+
+ // Counts the number of digits in abs_value. BITS = log2(radix).
+ template<unsigned BITS>
+ unsigned count_digits() const
+ {
+ unsigned_type n = abs_value;
+ unsigned num_digits = 0;
+ do
+ {
+ ++num_digits;
+ } while ((n >>= BITS) != 0);
+ return num_digits;
+ }
+
+ int_writer(basic_writer<Range> &w, Int value, const Spec &s)
+ : writer(w)
+ , spec(s)
+ , abs_value(static_cast<unsigned_type>(value))
+ , prefix_size(0)
+ {
+ if (internal::is_negative(value))
+ {
+ prefix[0] = '-';
+ ++prefix_size;
+ abs_value = 0 - abs_value;
+ }
+ else if (spec.flag(SIGN_FLAG))
+ {
+ prefix[0] = spec.flag(PLUS_FLAG) ? '+' : ' ';
+ ++prefix_size;
+ }
+ }
+
+ struct dec_writer
+ {
+ unsigned_type abs_value;
+ unsigned num_digits;
+
+ template<typename It>
+ void operator()(It &&it) const
+ {
+ it = internal::format_decimal(it, abs_value, num_digits);
+ }
+ };
+
+ void on_dec()
+ {
+ unsigned num_digits = internal::count_digits(abs_value);
+ writer.write_int(num_digits, get_prefix(), spec, dec_writer{abs_value, num_digits});
+ }
+
+ struct hex_writer
+ {
+ int_writer &self;
+ unsigned num_digits;
+
+ template<typename It>
+ void operator()(It &&it) const
+ {
+ it = internal::format_uint<4>(it, self.abs_value, num_digits, self.spec.type() != 'x');
+ }
+ };
+
+ void on_hex()
+ {
+ if (spec.flag(HASH_FLAG))
+ {
+ prefix[prefix_size++] = '0';
+ prefix[prefix_size++] = static_cast<char>(spec.type());
+ }
+ unsigned num_digits = count_digits<4>();
+ writer.write_int(num_digits, get_prefix(), spec, hex_writer{*this, num_digits});
+ }
+
+ template<int BITS>
+ struct bin_writer
+ {
+ unsigned_type abs_value;
+ unsigned num_digits;
+
+ template<typename It>
+ void operator()(It &&it) const
+ {
+ it = internal::format_uint<BITS>(it, abs_value, num_digits);
+ }
+ };
+
+ void on_bin()
+ {
+ if (spec.flag(HASH_FLAG))
+ {
+ prefix[prefix_size++] = '0';
+ prefix[prefix_size++] = static_cast<char>(spec.type());
+ }
+ unsigned num_digits = count_digits<1>();
+ writer.write_int(num_digits, get_prefix(), spec, bin_writer<1>{abs_value, num_digits});
+ }
+
+ void on_oct()
+ {
+ unsigned num_digits = count_digits<3>();
+ if (spec.flag(HASH_FLAG) && spec.precision() <= static_cast<int>(num_digits))
+ {
+ // Octal prefix '0' is counted as a digit, so only add it if precision
+ // is not greater than the number of digits.
+ prefix[prefix_size++] = '0';
+ }
+ writer.write_int(num_digits, get_prefix(), spec, bin_writer<3>{abs_value, num_digits});
+ }
+
+ enum
+ {
+ SEP_SIZE = 1
+ };
+
+ struct num_writer
+ {
+ unsigned_type abs_value;
+ unsigned size;
+ char_type sep;
+
+ template<typename It>
+ void operator()(It &&it) const
+ {
+ basic_string_view<char_type> s(&sep, SEP_SIZE);
+ it = format_decimal(it, abs_value, size, internal::add_thousands_sep<char_type>(s));
+ }
+ };
+
+ void on_num()
+ {
+ unsigned num_digits = internal::count_digits(abs_value);
+ char_type sep = internal::thousands_sep<char_type>(writer.locale_.get());
+ unsigned size = num_digits + SEP_SIZE * ((num_digits - 1) / 3);
+ writer.write_int(size, get_prefix(), spec, num_writer{abs_value, size, sep});
+ }
+
+ void on_error()
+ {
+ FMT_THROW(format_error("invalid type specifier"));
+ }
+ };
+
+ // Writes a formatted integer.
+ template<typename T, typename Spec>
+ void write_int(T value, const Spec &spec)
+ {
+ internal::handle_int_type_spec(spec.type(), int_writer<T, Spec>(*this, value, spec));
+ }
+
+ enum
+ {
+ INF_SIZE = 3
+ }; // This is an enum to workaround a bug in MSVC.
+
+ struct inf_or_nan_writer
+ {
+ char sign;
+ const char *str;
+
+ template<typename It>
+ void operator()(It &&it) const
+ {
+ if (sign)
+ *it++ = sign;
+ it = std::copy_n(str, static_cast<std::size_t>(INF_SIZE), it);
+ }
+ };
+
+ struct double_writer
+ {
+ size_t n;
+ char sign;
+ basic_memory_buffer<char_type> &buffer;
+
+ template<typename It>
+ void operator()(It &&it)
+ {
+ if (sign)
+ {
+ *it++ = sign;
+ --n;
+ }
+ it = std::copy_n(buffer.begin(), n, it);
+ }
+ };
+
+ // Formats a floating-point number (double or long double).
+ template<typename T>
+ void write_double(T value, const format_specs &spec);
+ template<typename T>
+ void write_double_sprintf(T value, const format_specs &spec, internal::basic_buffer<char_type> &buffer);
+
+ template<typename Char>
+ struct str_writer
+ {
+ const Char *s;
+ std::size_t size;
+
+ template<typename It>
+ void operator()(It &&it) const
+ {
+ it = std::copy_n(s, size, it);
+ }
+ };
+
+ // Writes a formatted string.
+ template<typename Char>
+ void write_str(const Char *s, std::size_t size, const align_spec &spec)
+ {
+ write_padded(size, spec, str_writer<Char>{s, size});
+ }
+
+ template<typename Char>
+ void write_str(basic_string_view<Char> str, const format_specs &spec);
+
+ // Appends floating-point length specifier to the format string.
+ // The second argument is only used for overload resolution.
+ void append_float_length(char_type *&format_ptr, long double)
+ {
+ *format_ptr++ = 'L';
+ }
+
+ template<typename T>
+ void append_float_length(char_type *&, T)
+ {
+ }
+
+ template<typename Char>
+ friend class internal::arg_formatter_base;
+
+public:
+ /** Constructs a ``basic_writer`` object. */
+ explicit basic_writer(Range out)
+ : out_(out.begin())
+ {
+ }
+
+ void write(int value)
+ {
+ write_decimal(value);
+ }
+ void write(long value)
+ {
+ write_decimal(value);
+ }
+ void write(long long value)
+ {
+ write_decimal(value);
+ }
+
+ void write(unsigned value)
+ {
+ write_decimal(value);
+ }
+ void write(unsigned long value)
+ {
+ write_decimal(value);
+ }
+ void write(unsigned long long value)
+ {
+ write_decimal(value);
+ }
+
+ /**
+ \rst
+ Formats *value* and writes it to the buffer.
+ \endrst
+ */
+ template<typename T, typename FormatSpec, typename... FormatSpecs>
+ typename std::enable_if<std::is_integral<T>::value, void>::type write(T value, FormatSpec spec, FormatSpecs... specs)
+ {
+ format_specs s(spec, specs...);
+ s.align_ = ALIGN_RIGHT;
+ write_int(value, s);
+ }
+
+ void write(double value)
+ {
+ write_double(value, format_specs());
+ }
+
+ /**
+ \rst
+ Formats *value* using the general format for floating-point numbers
+ (``'g'``) and writes it to the buffer.
+ \endrst
+ */
+ void write(long double value)
+ {
+ write_double(value, format_specs());
+ }
+
+ /** Writes a character to the buffer. */
+ void write(char value)
+ {
+ *reserve(1) = value;
+ }
+
+ void write(wchar_t value)
+ {
+ internal::require_wchar<char_type>();
+ *reserve(1) = value;
+ }
+
+ /**
+ \rst
+ Writes *value* to the buffer.
+ \endrst
+ */
+ void write(string_view value)
+ {
+ auto &&it = reserve(value.size());
+ it = std::copy(value.begin(), value.end(), it);
+ }
+
+ void write(wstring_view value)
+ {
+ internal::require_wchar<char_type>();
+ auto &&it = reserve(value.size());
+ it = std::uninitialized_copy(value.begin(), value.end(), it);
+ }
+
+ template<typename... FormatSpecs>
+ void write(basic_string_view<char_type> str, FormatSpecs... specs)
+ {
+ write_str(str, format_specs(specs...));
+ }
+
+ template<typename T>
+ typename std::enable_if<std::is_same<T, void>::value>::type write(const T *p)
+ {
+ format_specs specs;
+ specs.flags_ = HASH_FLAG;
+ specs.type_ = 'x';
+ write_int(reinterpret_cast<uintptr_t>(p), specs);
+ }
+};
+
+template<typename Range>
+template<typename F>
+void basic_writer<Range>::write_padded(std::size_t size, const align_spec &spec, F f)
+{
+ unsigned width = spec.width();
+ if (width <= size)
+ return f(reserve(size));
+ auto &&it = reserve(width);
+ char_type fill = static_cast<char_type>(spec.fill());
+ std::size_t padding = width - size;
+ if (spec.align() == ALIGN_RIGHT)
+ {
+ it = std::fill_n(it, padding, fill);
+ f(it);
+ }
+ else if (spec.align() == ALIGN_CENTER)
+ {
+ std::size_t left_padding = padding / 2;
+ it = std::fill_n(it, left_padding, fill);
+ f(it);
+ it = std::fill_n(it, padding - left_padding, fill);
+ }
+ else
+ {
+ f(it);
+ it = std::fill_n(it, padding, fill);
+ }
+}
+
+template<typename Range>
+template<typename Char>
+void basic_writer<Range>::write_str(basic_string_view<Char> s, const format_specs &spec)
+{
+ const Char *data = s.data();
+ std::size_t size = s.size();
+ std::size_t precision = static_cast<std::size_t>(spec.precision_);
+ if (spec.precision_ >= 0 && precision < size)
+ size = precision;
+ write_str(data, size, spec);
+}
+
+template<typename Char>
+struct float_spec_handler
+{
+ Char type;
+ bool upper;
+
+ explicit float_spec_handler(Char t)
+ : type(t)
+ , upper(false)
+ {
+ }
+
+ void on_general()
+ {
+ if (type == 'G')
+ upper = true;
+ else
+ type = 'g';
+ }
+
+ void on_exp()
+ {
+ if (type == 'E')
+ upper = true;
+ }
+
+ void on_fixed()
+ {
+ if (type == 'F')
+ {
+ upper = true;
+#if FMT_MSC_VER
+ // MSVC's printf doesn't support 'F'.
+ type = 'f';
+#endif
+ }
+ }
+
+ void on_hex()
+ {
+ if (type == 'A')
+ upper = true;
+ }
+
+ void on_error()
+ {
+ FMT_THROW(format_error("invalid type specifier"));
+ }
+};
+
+template<typename Range>
+template<typename T>
+void basic_writer<Range>::write_double(T value, const format_specs &spec)
+{
+ // Check type.
+ float_spec_handler<char_type> handler(spec.type());
+ internal::handle_float_type_spec(spec.type(), handler);
+
+ char sign = 0;
+ // Use isnegative instead of value < 0 because the latter is always
+ // false for NaN.
+ if (internal::fputil::isnegative(static_cast<double>(value)))
+ {
+ sign = '-';
+ value = -value;
+ }
+ else if (spec.flag(SIGN_FLAG))
+ {
+ sign = spec.flag(PLUS_FLAG) ? '+' : ' ';
+ }
+
+ struct write_inf_or_nan_t
+ {
+ basic_writer &writer;
+ format_specs spec;
+ char sign;
+ void operator()(const char *str) const
+ {
+ writer.write_padded(INF_SIZE + (sign ? 1 : 0), spec, inf_or_nan_writer{sign, str});
+ }
+ } write_inf_or_nan = {*this, spec, sign};
+
+ // Format NaN and ininity ourselves because sprintf's output is not consistent
+ // across platforms.
+ if (internal::fputil::isnotanumber(value))
+ return write_inf_or_nan(handler.upper ? "NAN" : "nan");
+ if (internal::fputil::isinfinity(value))
+ return write_inf_or_nan(handler.upper ? "INF" : "inf");
+
+ basic_memory_buffer<char_type> buffer;
+ if (FMT_USE_GRISU && sizeof(T) <= sizeof(double) && std::numeric_limits<double>::is_iec559)
+ {
+ internal::fp fp_value(static_cast<double>(value));
+ fp_value.normalize();
+ // Find a cached power of 10 close to 1 / fp_value.
+ int dec_exp = 0;
+ const int min_exp = -60;
+ auto dec_pow = internal::get_cached_power(min_exp - (fp_value.e + internal::fp::significand_size), dec_exp);
+ internal::fp product = fp_value * dec_pow;
+ // Generate output.
+ internal::fp one(1ull << -product.e, product.e);
+ uint64_t hi = product.f >> -one.e;
+ uint64_t f = product.f & (one.f - 1);
+ typedef back_insert_range<internal::basic_buffer<char_type>> range;
+ basic_writer<range> w{range(buffer)};
+ w.write(hi);
+ size_t digits = buffer.size();
+ w.write('.');
+ const unsigned max_digits = 18;
+ while (digits++ < max_digits)
+ {
+ f *= 10;
+ w.write(static_cast<char>('0' + (f >> -one.e)));
+ f &= one.f - 1;
+ }
+ w.write('e');
+ w.write(-dec_exp);
+ }
+ else
+ {
+ format_specs normalized_spec(spec);
+ normalized_spec.type_ = handler.type;
+ write_double_sprintf(value, normalized_spec, buffer);
+ }
+ size_t n = buffer.size();
+ align_spec as = spec;
+ if (spec.align() == ALIGN_NUMERIC)
+ {
+ if (sign)
+ {
+ auto &&it = reserve(1);
+ *it++ = sign;
+ sign = 0;
+ if (as.width_)
+ --as.width_;
+ }
+ as.align_ = ALIGN_RIGHT;
+ }
+ else
+ {
+ if (spec.align() == ALIGN_DEFAULT)
+ as.align_ = ALIGN_RIGHT;
+ if (sign)
+ ++n;
+ }
+ write_padded(n, as, double_writer{n, sign, buffer});
+}
+
+template<typename Range>
+template<typename T>
+void basic_writer<Range>::write_double_sprintf(T value, const format_specs &spec, internal::basic_buffer<char_type> &buffer)
+{
+ // Buffer capacity must be non-zero, otherwise MSVC's vsnprintf_s will fail.
+ FMT_ASSERT(buffer.capacity() != 0, "empty buffer");
+
+ // Build format string.
+ enum
+ {
+ MAX_FORMAT_SIZE = 10
+ }; // longest format: %#-*.*Lg
+ char_type format[MAX_FORMAT_SIZE];
+ char_type *format_ptr = format;
+ *format_ptr++ = '%';
+ if (spec.flag(HASH_FLAG))
+ *format_ptr++ = '#';
+ if (spec.precision() >= 0)
+ {
+ *format_ptr++ = '.';
+ *format_ptr++ = '*';
+ }
+
+ append_float_length(format_ptr, value);
+ *format_ptr++ = spec.type();
+ *format_ptr = '\0';
+
+ // Format using snprintf.
+ char_type *start = FMT_NULL;
+ for (;;)
+ {
+ std::size_t buffer_size = buffer.capacity();
+ start = &buffer[0];
+ int result = internal::char_traits<char_type>::format_float(start, buffer_size, format, spec.precision(), value);
+ if (result >= 0)
+ {
+ unsigned n = internal::to_unsigned(result);
+ if (n < buffer.capacity())
+ {
+ buffer.resize(n);
+ break; // The buffer is large enough - continue with formatting.
+ }
+ buffer.reserve(n + 1);
+ }
+ else
+ {
+ // If result is negative we ask to increase the capacity by at least 1,
+ // but as std::vector, the buffer grows exponentially.
+ buffer.reserve(buffer.capacity() + 1);
+ }
+ }
+}
+
+// Reports a system error without throwing an exception.
+// Can be used to report errors from destructors.
+FMT_API void report_system_error(int error_code, string_view message) FMT_NOEXCEPT;
+
+#if FMT_USE_WINDOWS_H
+
+/** A Windows error. */
+class windows_error : public system_error
+{
+private:
+ FMT_API void init(int error_code, string_view format_str, format_args args);
+
+public:
+ /**
+ \rst
+ Constructs a :class:`fmt::windows_error` object with the description
+ of the form
+
+ .. parsed-literal::
+ *<message>*: *<system-message>*
+
+ where *<message>* is the formatted message and *<system-message>* is the
+ system message corresponding to the error code.
+ *error_code* is a Windows error code as given by ``GetLastError``.
+ If *error_code* is not a valid error code such as -1, the system message
+ will look like "error -1".
+
+ **Example**::
+
+ // This throws a windows_error with the description
+ // cannot open file 'madeup': The system cannot find the file specified.
+ // or similar (system message may vary).
+ const char *filename = "madeup";
+ LPOFSTRUCT of = LPOFSTRUCT();
+ HFILE file = OpenFile(filename, &of, OF_READ);
+ if (file == HFILE_ERROR) {
+ throw fmt::windows_error(GetLastError(),
+ "cannot open file '{}'", filename);
+ }
+ \endrst
+ */
+ template<typename... Args>
+ windows_error(int error_code, string_view message, const Args &... args)
+ {
+ init(error_code, message, make_format_args(args...));
+ }
+};
+
+// Reports a Windows error without throwing an exception.
+// Can be used to report errors from destructors.
+FMT_API void report_windows_error(int error_code, string_view message) FMT_NOEXCEPT;
+
+#endif
+
+/** Fast integer formatter. */
+class format_int
+{
+private:
+ // Buffer should be large enough to hold all digits (digits10 + 1),
+ // a sign and a null character.
+ enum
+ {
+ BUFFER_SIZE = std::numeric_limits<unsigned long long>::digits10 + 3
+ };
+ mutable char buffer_[BUFFER_SIZE];
+ char *str_;
+
+ // Formats value in reverse and returns a pointer to the beginning.
+ char *format_decimal(unsigned long long value)
+ {
+ char *ptr = buffer_ + BUFFER_SIZE - 1;
+ while (value >= 100)
+ {
+ // Integer division is slow so do it for a group of two digits instead
+ // of for every digit. The idea comes from the talk by Alexandrescu
+ // "Three Optimization Tips for C++". See speed-test for a comparison.
+ unsigned index = static_cast<unsigned>((value % 100) * 2);
+ value /= 100;
+ *--ptr = internal::data::DIGITS[index + 1];
+ *--ptr = internal::data::DIGITS[index];
+ }
+ if (value < 10)
+ {
+ *--ptr = static_cast<char>('0' + value);
+ return ptr;
+ }
+ unsigned index = static_cast<unsigned>(value * 2);
+ *--ptr = internal::data::DIGITS[index + 1];
+ *--ptr = internal::data::DIGITS[index];
+ return ptr;
+ }
+
+ void format_signed(long long value)
+ {
+ unsigned long long abs_value = static_cast<unsigned long long>(value);
+ bool negative = value < 0;
+ if (negative)
+ abs_value = 0 - abs_value;
+ str_ = format_decimal(abs_value);
+ if (negative)
+ *--str_ = '-';
+ }
+
+public:
+ explicit format_int(int value)
+ {
+ format_signed(value);
+ }
+ explicit format_int(long value)
+ {
+ format_signed(value);
+ }
+ explicit format_int(long long value)
+ {
+ format_signed(value);
+ }
+ explicit format_int(unsigned value)
+ : str_(format_decimal(value))
+ {
+ }
+ explicit format_int(unsigned long value)
+ : str_(format_decimal(value))
+ {
+ }
+ explicit format_int(unsigned long long value)
+ : str_(format_decimal(value))
+ {
+ }
+
+ /** Returns the number of characters written to the output buffer. */
+ std::size_t size() const
+ {
+ return internal::to_unsigned(buffer_ - str_ + BUFFER_SIZE - 1);
+ }
+
+ /**
+ Returns a pointer to the output buffer content. No terminating null
+ character is appended.
+ */
+ const char *data() const
+ {
+ return str_;
+ }
+
+ /**
+ Returns a pointer to the output buffer content with terminating null
+ character appended.
+ */
+ const char *c_str() const
+ {
+ buffer_[BUFFER_SIZE - 1] = '\0';
+ return str_;
+ }
+
+ /**
+ \rst
+ Returns the content of the output buffer as an ``std::string``.
+ \endrst
+ */
+ std::string str() const
+ {
+ return std::string(str_, size());
+ }
+};
+
+// Formats a decimal integer value writing into buffer and returns
+// a pointer to the end of the formatted string. This function doesn't
+// write a terminating null character.
+template<typename T>
+inline void format_decimal(char *&buffer, T value)
+{
+ typedef typename internal::int_traits<T>::main_type main_type;
+ main_type abs_value = static_cast<main_type>(value);
+ if (internal::is_negative(value))
+ {
+ *buffer++ = '-';
+ abs_value = 0 - abs_value;
+ }
+ if (abs_value < 100)
+ {
+ if (abs_value < 10)
+ {
+ *buffer++ = static_cast<char>('0' + abs_value);
+ return;
+ }
+ unsigned index = static_cast<unsigned>(abs_value * 2);
+ *buffer++ = internal::data::DIGITS[index];
+ *buffer++ = internal::data::DIGITS[index + 1];
+ return;
+ }
+ unsigned num_digits = internal::count_digits(abs_value);
+ internal::format_decimal(buffer, abs_value, num_digits);
+ buffer += num_digits;
+}
+
+// Formatter of objects of type T.
+template<typename T, typename Char>
+struct formatter<T, Char, typename std::enable_if<internal::format_type<typename buffer_context<Char>::type, T>::value>::type>
+{
+
+ // Parses format specifiers stopping either at the end of the range or at the
+ // terminating '}'.
+ template<typename ParseContext>
+ FMT_CONSTEXPR typename ParseContext::iterator parse(ParseContext &ctx)
+ {
+ auto it = internal::null_terminating_iterator<Char>(ctx);
+ typedef internal::dynamic_specs_handler<ParseContext> handler_type;
+ auto type = internal::get_type<typename buffer_context<Char>::type, T>::value;
+ internal::specs_checker<handler_type> handler(handler_type(specs_, ctx), type);
+ it = parse_format_specs(it, handler);
+ auto type_spec = specs_.type();
+ auto eh = ctx.error_handler();
+ switch (type)
+ {
+ case internal::none_type:
+ case internal::named_arg_type:
+ FMT_ASSERT(false, "invalid argument type");
+ break;
+ case internal::int_type:
+ case internal::uint_type:
+ case internal::long_long_type:
+ case internal::ulong_long_type:
+ case internal::bool_type:
+ handle_int_type_spec(type_spec, internal::int_type_checker<decltype(eh)>(eh));
+ break;
+ case internal::char_type:
+ handle_char_specs(specs_, internal::char_specs_checker<decltype(eh), decltype(type_spec)>(type_spec, eh));
+ break;
+ case internal::double_type:
+ case internal::long_double_type:
+ handle_float_type_spec(type_spec, internal::float_type_checker<decltype(eh)>(eh));
+ break;
+ case internal::cstring_type:
+ internal::handle_cstring_type_spec(type_spec, internal::cstring_type_checker<decltype(eh)>(eh));
+ break;
+ case internal::string_type:
+ internal::check_string_type_spec(type_spec, eh);
+ break;
+ case internal::pointer_type:
+ internal::check_pointer_type_spec(type_spec, eh);
+ break;
+ case internal::custom_type:
+ // Custom format specifiers should be checked in parse functions of
+ // formatter specializations.
+ break;
+ }
+ return pointer_from(it);
+ }
+
+ template<typename FormatContext>
+ auto format(const T &val, FormatContext &ctx) -> decltype(ctx.out())
+ {
+ internal::handle_dynamic_spec<internal::width_checker>(specs_.width_, specs_.width_ref, ctx);
+ internal::handle_dynamic_spec<internal::precision_checker>(specs_.precision_, specs_.precision_ref, ctx);
+ typedef output_range<typename FormatContext::iterator, typename FormatContext::char_type> range_type;
+ return visit(arg_formatter<range_type>(ctx, specs_), internal::make_arg<FormatContext>(val));
+ }
+
+private:
+ internal::dynamic_format_specs<Char> specs_;
+};
+
+template<typename T, typename Char>
+struct formatter<T, Char, typename std::enable_if<internal::format_enum<T>::value>::type> : public formatter<int, Char>
+{
+ template<typename ParseContext>
+ auto parse(ParseContext &ctx) -> decltype(ctx.begin())
+ {
+ return ctx.begin();
+ }
+};
+
+// A formatter for types known only at run time such as variant alternatives.
+//
+// Usage:
+// typedef std::variant<int, std::string> variant;
+// template <>
+// struct formatter<variant>: dynamic_formatter<> {
+// void format(buffer &buf, const variant &v, context &ctx) {
+// visit([&](const auto &val) { format(buf, val, ctx); }, v);
+// }
+// };
+template<typename Char = char>
+class dynamic_formatter
+{
+private:
+ struct null_handler : internal::error_handler
+ {
+ void on_align(alignment) {}
+ void on_plus() {}
+ void on_minus() {}
+ void on_space() {}
+ void on_hash() {}
+ };
+
+public:
+ template<typename ParseContext>
+ auto parse(ParseContext &ctx) -> decltype(ctx.begin())
+ {
+ auto it = internal::null_terminating_iterator<Char>(ctx);
+ // Checks are deferred to formatting time when the argument type is known.
+ internal::dynamic_specs_handler<ParseContext> handler(specs_, ctx);
+ it = parse_format_specs(it, handler);
+ return pointer_from(it);
+ }
+
+ template<typename T, typename FormatContext>
+ auto format(const T &val, FormatContext &ctx) -> decltype(ctx.out())
+ {
+ handle_specs(ctx);
+ internal::specs_checker<null_handler> checker(null_handler(), internal::get_type<FormatContext, T>::value);
+ checker.on_align(specs_.align());
+ if (specs_.flags_ == 0)
+ {
+ // Do nothing.
+ }
+ else if (specs_.flag(SIGN_FLAG))
+ {
+ if (specs_.flag(PLUS_FLAG))
+ checker.on_plus();
+ else
+ checker.on_space();
+ }
+ else if (specs_.flag(MINUS_FLAG))
+ {
+ checker.on_minus();
+ }
+ else if (specs_.flag(HASH_FLAG))
+ {
+ checker.on_hash();
+ }
+ if (specs_.precision_ != -1)
+ checker.end_precision();
+ typedef output_range<typename FormatContext::iterator, typename FormatContext::char_type> range;
+ visit(arg_formatter<range>(ctx, specs_), internal::make_arg<FormatContext>(val));
+ return ctx.out();
+ }
+
+private:
+ template<typename Context>
+ void handle_specs(Context &ctx)
+ {
+ internal::handle_dynamic_spec<internal::width_checker>(specs_.width_, specs_.width_ref, ctx);
+ internal::handle_dynamic_spec<internal::precision_checker>(specs_.precision_, specs_.precision_ref, ctx);
+ }
+
+ internal::dynamic_format_specs<Char> specs_;
+};
+
+template<typename Range, typename Char>
+typename basic_format_context<Range, Char>::format_arg basic_format_context<Range, Char>::get_arg(basic_string_view<char_type> name)
+{
+ map_.init(this->args());
+ format_arg arg = map_.find(name);
+ if (arg.type() == internal::none_type)
+ this->on_error("argument not found");
+ return arg;
+}
+
+template<typename ArgFormatter, typename Char, typename Context>
+struct format_handler : internal::error_handler
+{
+ typedef internal::null_terminating_iterator<Char> iterator;
+ typedef typename ArgFormatter::range range;
+
+ format_handler(range r, basic_string_view<Char> str, basic_format_args<Context> format_args)
+ : context(r.begin(), str, format_args)
+ {
+ }
+
+ void on_text(iterator begin, iterator end)
+ {
+ auto size = internal::to_unsigned(end - begin);
+ auto out = context.out();
+ auto &&it = internal::reserve(out, size);
+ it = std::copy_n(begin, size, it);
+ context.advance_to(out);
+ }
+
+ void on_arg_id()
+ {
+ arg = context.next_arg();
+ }
+ void on_arg_id(unsigned id)
+ {
+ context.parse_context().check_arg_id(id);
+ arg = context.get_arg(id);
+ }
+ void on_arg_id(basic_string_view<Char> id)
+ {
+ arg = context.get_arg(id);
+ }
+
+ void on_replacement_field(iterator it)
+ {
+ context.parse_context().advance_to(pointer_from(it));
+ if (visit(internal::custom_formatter<Char, Context>(context), arg))
+ return;
+ basic_format_specs<Char> specs;
+ context.advance_to(visit(ArgFormatter(context, specs), arg));
+ }
+
+ iterator on_format_specs(iterator it)
+ {
+ auto &parse_ctx = context.parse_context();
+ parse_ctx.advance_to(pointer_from(it));
+ if (visit(internal::custom_formatter<Char, Context>(context), arg))
+ return iterator(parse_ctx);
+ basic_format_specs<Char> specs;
+ using internal::specs_handler;
+ internal::specs_checker<specs_handler<Context>> handler(specs_handler<Context>(specs, context), arg.type());
+ it = parse_format_specs(it, handler);
+ if (*it != '}')
+ on_error("missing '}' in format string");
+ parse_ctx.advance_to(pointer_from(it));
+ context.advance_to(visit(ArgFormatter(context, specs), arg));
+ return it;
+ }
+
+ Context context;
+ basic_format_arg<Context> arg;
+};
+
+/** Formats arguments and writes the output to the range. */
+template<typename ArgFormatter, typename Char, typename Context>
+typename Context::iterator vformat_to(typename ArgFormatter::range out, basic_string_view<Char> format_str, basic_format_args<Context> args)
+{
+ typedef internal::null_terminating_iterator<Char> iterator;
+ format_handler<ArgFormatter, Char, Context> h(out, format_str, args);
+ parse_format_string(iterator(format_str.begin(), format_str.end()), h);
+ return h.context.out();
+}
+
+// Casts ``p`` to ``const void*`` for pointer formatting.
+// Example:
+// auto s = format("{}", ptr(p));
+template<typename T>
+inline const void *ptr(const T *p)
+{
+ return p;
+}
+
+template<typename It, typename Char>
+struct arg_join
+{
+ It begin;
+ It end;
+ basic_string_view<Char> sep;
+
+ arg_join(It begin, It end, basic_string_view<Char> sep)
+ : begin(begin)
+ , end(end)
+ , sep(sep)
+ {
+ }
+};
+
+template<typename It, typename Char>
+struct formatter<arg_join<It, Char>, Char> : formatter<typename std::iterator_traits<It>::value_type, Char>
+{
+ template<typename FormatContext>
+ auto format(const arg_join<It, Char> &value, FormatContext &ctx) -> decltype(ctx.out())
+ {
+ typedef formatter<typename std::iterator_traits<It>::value_type, Char> base;
+ auto it = value.begin;
+ auto out = ctx.out();
+ if (it != value.end)
+ {
+ out = base::format(*it++, ctx);
+ while (it != value.end)
+ {
+ out = std::copy(value.sep.begin(), value.sep.end(), out);
+ ctx.advance_to(out);
+ out = base::format(*it++, ctx);
+ }
+ }
+ return out;
+ }
+};
+
+template<typename It>
+arg_join<It, char> join(It begin, It end, string_view sep)
+{
+ return arg_join<It, char>(begin, end, sep);
+}
+
+template<typename It>
+arg_join<It, wchar_t> join(It begin, It end, wstring_view sep)
+{
+ return arg_join<It, wchar_t>(begin, end, sep);
+}
+
+// The following causes ICE in gcc 4.4.
+#if FMT_USE_TRAILING_RETURN && (!FMT_GCC_VERSION || FMT_GCC_VERSION >= 405)
+template<typename Range>
+auto join(const Range &range, string_view sep) -> arg_join<decltype(internal::begin(range)), char>
+{
+ return join(internal::begin(range), internal::end(range), sep);
+}
+
+template<typename Range>
+auto join(const Range &range, wstring_view sep) -> arg_join<decltype(internal::begin(range)), wchar_t>
+{
+ return join(internal::begin(range), internal::end(range), sep);
+}
+#endif
+
+/**
+ \rst
+ Converts *value* to ``std::string`` using the default format for type *T*.
+
+ **Example**::
+
+ #include <fmt/format.h>
+
+ std::string answer = fmt::to_string(42);
+ \endrst
+ */
+template<typename T>
+std::string to_string(const T &value)
+{
+ std::string str;
+ internal::container_buffer<std::string> buf(str);
+ writer(buf).write(value);
+ return str;
+}
+
+/**
+ Converts *value* to ``std::wstring`` using the default format for type *T*.
+ */
+template<typename T>
+std::wstring to_wstring(const T &value)
+{
+ std::wstring str;
+ internal::container_buffer<std::wstring> buf(str);
+ wwriter(buf).write(value);
+ return str;
+}
+
+template<typename Char, std::size_t SIZE>
+std::basic_string<Char> to_string(const basic_memory_buffer<Char, SIZE> &buf)
+{
+ return std::basic_string<Char>(buf.data(), buf.size());
+}
+
+inline format_context::iterator vformat_to(internal::buffer &buf, string_view format_str, format_args args)
+{
+ typedef back_insert_range<internal::buffer> range;
+ return vformat_to<arg_formatter<range>>(buf, format_str, args);
+}
+
+inline wformat_context::iterator vformat_to(internal::wbuffer &buf, wstring_view format_str, wformat_args args)
+{
+ typedef back_insert_range<internal::wbuffer> range;
+ return vformat_to<arg_formatter<range>>(buf, format_str, args);
+}
+
+template<typename... Args, std::size_t SIZE = inline_buffer_size>
+inline format_context::iterator format_to(basic_memory_buffer<char, SIZE> &buf, string_view format_str, const Args &... args)
+{
+ return vformat_to(buf, format_str, make_format_args(args...));
+}
+
+template<typename... Args, std::size_t SIZE = inline_buffer_size>
+inline wformat_context::iterator format_to(basic_memory_buffer<wchar_t, SIZE> &buf, wstring_view format_str, const Args &... args)
+{
+ return vformat_to(buf, format_str, make_format_args<wformat_context>(args...));
+}
+
+template<typename OutputIt, typename Char = char>
+// using format_context_t = basic_format_context<OutputIt, Char>;
+struct format_context_t
+{
+ typedef basic_format_context<OutputIt, Char> type;
+};
+
+template<typename OutputIt, typename Char = char>
+// using format_args_t = basic_format_args<format_context_t<OutputIt, Char>>;
+struct format_args_t
+{
+ typedef basic_format_args<typename format_context_t<OutputIt, Char>::type> type;
+};
+
+template<typename OutputIt, typename... Args>
+inline OutputIt vformat_to(OutputIt out, string_view format_str, typename format_args_t<OutputIt>::type args)
+{
+ typedef output_range<OutputIt, char> range;
+ return vformat_to<arg_formatter<range>>(range(out), format_str, args);
+}
+template<typename OutputIt, typename... Args>
+inline OutputIt vformat_to(OutputIt out, wstring_view format_str, typename format_args_t<OutputIt, wchar_t>::type args)
+{
+ typedef output_range<OutputIt, wchar_t> range;
+ return vformat_to<arg_formatter<range>>(range(out), format_str, args);
+}
+
+/**
+ \rst
+ Formats arguments, writes the result to the output iterator ``out`` and returns
+ the iterator past the end of the output range.
+
+ **Example**::
+
+ std::vector<char> out;
+ fmt::format_to(std::back_inserter(out), "{}", 42);
+ \endrst
+ */
+template<typename OutputIt, typename... Args>
+inline OutputIt format_to(OutputIt out, string_view format_str, const Args &... args)
+{
+ return vformat_to(out, format_str, make_format_args<typename format_context_t<OutputIt>::type>(args...));
+}
+
+template<typename Container, typename... Args>
+inline typename std::enable_if<is_contiguous<Container>::value, std::back_insert_iterator<Container>>::type format_to(
+ std::back_insert_iterator<Container> out, string_view format_str, const Args &... args)
+{
+ return vformat_to(out, format_str, make_format_args<format_context>(args...));
+}
+
+template<typename Container, typename... Args>
+inline typename std::enable_if<is_contiguous<Container>::value, std::back_insert_iterator<Container>>::type format_to(
+ std::back_insert_iterator<Container> out, wstring_view format_str, const Args &... args)
+{
+ return vformat_to(out, format_str, make_format_args<wformat_context>(args...));
+}
+
+template<typename OutputIt>
+struct format_to_n_result
+{
+ /** Iterator past the end of the output range. */
+ OutputIt out;
+ /** Total (not truncated) output size. */
+ std::size_t size;
+};
+
+template<typename OutputIt>
+using format_to_n_context = typename fmt::format_context_t<fmt::internal::truncating_iterator<OutputIt>>::type;
+
+template<typename OutputIt>
+using format_to_n_args = fmt::basic_format_args<format_to_n_context<OutputIt>>;
+
+template<typename OutputIt, typename... Args>
+inline format_arg_store<format_to_n_context<OutputIt>, Args...> make_format_to_n_args(const Args &... args)
+{
+ return format_arg_store<format_to_n_context<OutputIt>, Args...>(args...);
+}
+
+template<typename OutputIt, typename... Args>
+inline format_to_n_result<OutputIt> vformat_to_n(OutputIt out, std::size_t n, string_view format_str, format_to_n_args<OutputIt> args)
+{
+ typedef internal::truncating_iterator<OutputIt> It;
+ auto it = vformat_to(It(out, n), format_str, args);
+ return {it.base(), it.count()};
+}
+
+/**
+ \rst
+ Formats arguments, writes up to ``n`` characters of the result to the output
+ iterator ``out`` and returns the total output size and the iterator past the
+ end
+ of the output range.
+ \endrst
+ */
+template<typename OutputIt, typename... Args>
+inline format_to_n_result<OutputIt> format_to_n(OutputIt out, std::size_t n, string_view format_str, const Args &... args)
+{
+ return vformat_to_n<OutputIt>(out, n, format_str, make_format_to_n_args<OutputIt>(args...));
+}
+template<typename OutputIt, typename... Args>
+inline format_to_n_result<OutputIt> format_to_n(OutputIt out, std::size_t n, wstring_view format_str, const Args &... args)
+{
+ typedef internal::truncating_iterator<OutputIt> It;
+ auto it = vformat_to(It(out, n), format_str, make_format_args<typename format_context_t<It, wchar_t>::type>(args...));
+ return {it.base(), it.count()};
+}
+
+inline std::string vformat(string_view format_str, format_args args)
+{
+ memory_buffer buffer;
+ vformat_to(buffer, format_str, args);
+ return fmt::to_string(buffer);
+}
+
+inline std::wstring vformat(wstring_view format_str, wformat_args args)
+{
+ wmemory_buffer buffer;
+ vformat_to(buffer, format_str, args);
+ return to_string(buffer);
+}
+
+template<typename String, typename... Args>
+inline typename std::enable_if<internal::is_format_string<String>::value, std::string>::type format(String format_str, const Args &... args)
+{
+ internal::check_format_string<Args...>(format_str);
+ return vformat(format_str.data(), make_format_args(args...));
+}
+
+template<typename String, typename... Args>
+inline typename std::enable_if<internal::is_format_string<String>::value>::type print(String format_str, const Args &... args)
+{
+ internal::check_format_string<Args...>(format_str);
+ return vprint(format_str.data(), make_format_args(args...));
+}
+
+/**
+ Returns the number of characters in the output of
+ ``format(format_str, args...)``.
+ */
+template<typename... Args>
+inline std::size_t formatted_size(string_view format_str, const Args &... args)
+{
+ auto it = format_to(internal::counting_iterator<char>(), format_str, args...);
+ return it.count();
+}
+
+// Experimental color support.
+#ifdef FMT_EXTENDED_COLORS
+enum class color : uint32_t
+{
+ alice_blue = 0xF0F8FF, // rgb(240,248,255)
+ antique_white = 0xFAEBD7, // rgb(250,235,215)
+ aqua = 0x00FFFF, // rgb(0,255,255)
+ aquamarine = 0x7FFFD4, // rgb(127,255,212)
+ azure = 0xF0FFFF, // rgb(240,255,255)
+ beige = 0xF5F5DC, // rgb(245,245,220)
+ bisque = 0xFFE4C4, // rgb(255,228,196)
+ black = 0x000000, // rgb(0,0,0)
+ blanched_almond = 0xFFEBCD, // rgb(255,235,205)
+ blue = 0x0000FF, // rgb(0,0,255)
+ blue_violet = 0x8A2BE2, // rgb(138,43,226)
+ brown = 0xA52A2A, // rgb(165,42,42)
+ burly_wood = 0xDEB887, // rgb(222,184,135)
+ cadet_blue = 0x5F9EA0, // rgb(95,158,160)
+ chartreuse = 0x7FFF00, // rgb(127,255,0)
+ chocolate = 0xD2691E, // rgb(210,105,30)
+ coral = 0xFF7F50, // rgb(255,127,80)
+ cornflower_blue = 0x6495ED, // rgb(100,149,237)
+ cornsilk = 0xFFF8DC, // rgb(255,248,220)
+ crimson = 0xDC143C, // rgb(220,20,60)
+ cyan = 0x00FFFF, // rgb(0,255,255)
+ dark_blue = 0x00008B, // rgb(0,0,139)
+ dark_cyan = 0x008B8B, // rgb(0,139,139)
+ dark_golden_rod = 0xB8860B, // rgb(184,134,11)
+ dark_gray = 0xA9A9A9, // rgb(169,169,169)
+ dark_green = 0x006400, // rgb(0,100,0)
+ dark_khaki = 0xBDB76B, // rgb(189,183,107)
+ dark_magenta = 0x8B008B, // rgb(139,0,139)
+ dark_olive_green = 0x556B2F, // rgb(85,107,47)
+ dark_orange = 0xFF8C00, // rgb(255,140,0)
+ dark_orchid = 0x9932CC, // rgb(153,50,204)
+ dark_red = 0x8B0000, // rgb(139,0,0)
+ dark_salmon = 0xE9967A, // rgb(233,150,122)
+ dark_sea_green = 0x8FBC8F, // rgb(143,188,143)
+ dark_slate_blue = 0x483D8B, // rgb(72,61,139)
+ dark_slate_gray = 0x2F4F4F, // rgb(47,79,79)
+ dark_turquoise = 0x00CED1, // rgb(0,206,209)
+ dark_violet = 0x9400D3, // rgb(148,0,211)
+ deep_pink = 0xFF1493, // rgb(255,20,147)
+ deep_sky_blue = 0x00BFFF, // rgb(0,191,255)
+ dim_gray = 0x696969, // rgb(105,105,105)
+ dodger_blue = 0x1E90FF, // rgb(30,144,255)
+ fire_brick = 0xB22222, // rgb(178,34,34)
+ floral_white = 0xFFFAF0, // rgb(255,250,240)
+ forest_green = 0x228B22, // rgb(34,139,34)
+ fuchsia = 0xFF00FF, // rgb(255,0,255)
+ gainsboro = 0xDCDCDC, // rgb(220,220,220)
+ ghost_white = 0xF8F8FF, // rgb(248,248,255)
+ gold = 0xFFD700, // rgb(255,215,0)
+ golden_rod = 0xDAA520, // rgb(218,165,32)
+ gray = 0x808080, // rgb(128,128,128)
+ green = 0x008000, // rgb(0,128,0)
+ green_yellow = 0xADFF2F, // rgb(173,255,47)
+ honey_dew = 0xF0FFF0, // rgb(240,255,240)
+ hot_pink = 0xFF69B4, // rgb(255,105,180)
+ indian_red = 0xCD5C5C, // rgb(205,92,92)
+ indigo = 0x4B0082, // rgb(75,0,130)
+ ivory = 0xFFFFF0, // rgb(255,255,240)
+ khaki = 0xF0E68C, // rgb(240,230,140)
+ lavender = 0xE6E6FA, // rgb(230,230,250)
+ lavender_blush = 0xFFF0F5, // rgb(255,240,245)
+ lawn_green = 0x7CFC00, // rgb(124,252,0)
+ lemon_chiffon = 0xFFFACD, // rgb(255,250,205)
+ light_blue = 0xADD8E6, // rgb(173,216,230)
+ light_coral = 0xF08080, // rgb(240,128,128)
+ light_cyan = 0xE0FFFF, // rgb(224,255,255)
+ light_golden_rod_yellow = 0xFAFAD2, // rgb(250,250,210)
+ light_gray = 0xD3D3D3, // rgb(211,211,211)
+ light_green = 0x90EE90, // rgb(144,238,144)
+ light_pink = 0xFFB6C1, // rgb(255,182,193)
+ light_salmon = 0xFFA07A, // rgb(255,160,122)
+ light_sea_green = 0x20B2AA, // rgb(32,178,170)
+ light_sky_blue = 0x87CEFA, // rgb(135,206,250)
+ light_slate_gray = 0x778899, // rgb(119,136,153)
+ light_steel_blue = 0xB0C4DE, // rgb(176,196,222)
+ light_yellow = 0xFFFFE0, // rgb(255,255,224)
+ lime = 0x00FF00, // rgb(0,255,0)
+ lime_green = 0x32CD32, // rgb(50,205,50)
+ linen = 0xFAF0E6, // rgb(250,240,230)
+ magenta = 0xFF00FF, // rgb(255,0,255)
+ maroon = 0x800000, // rgb(128,0,0)
+ medium_aquamarine = 0x66CDAA, // rgb(102,205,170)
+ medium_blue = 0x0000CD, // rgb(0,0,205)
+ medium_orchid = 0xBA55D3, // rgb(186,85,211)
+ medium_purple = 0x9370DB, // rgb(147,112,219)
+ medium_sea_green = 0x3CB371, // rgb(60,179,113)
+ medium_slate_blue = 0x7B68EE, // rgb(123,104,238)
+ medium_spring_green = 0x00FA9A, // rgb(0,250,154)
+ medium_turquoise = 0x48D1CC, // rgb(72,209,204)
+ medium_violet_red = 0xC71585, // rgb(199,21,133)
+ midnight_blue = 0x191970, // rgb(25,25,112)
+ mint_cream = 0xF5FFFA, // rgb(245,255,250)
+ misty_rose = 0xFFE4E1, // rgb(255,228,225)
+ moccasin = 0xFFE4B5, // rgb(255,228,181)
+ navajo_white = 0xFFDEAD, // rgb(255,222,173)
+ navy = 0x000080, // rgb(0,0,128)
+ old_lace = 0xFDF5E6, // rgb(253,245,230)
+ olive = 0x808000, // rgb(128,128,0)
+ olive_drab = 0x6B8E23, // rgb(107,142,35)
+ orange = 0xFFA500, // rgb(255,165,0)
+ orange_red = 0xFF4500, // rgb(255,69,0)
+ orchid = 0xDA70D6, // rgb(218,112,214)
+ pale_golden_rod = 0xEEE8AA, // rgb(238,232,170)
+ pale_green = 0x98FB98, // rgb(152,251,152)
+ pale_turquoise = 0xAFEEEE, // rgb(175,238,238)
+ pale_violet_red = 0xDB7093, // rgb(219,112,147)
+ papaya_whip = 0xFFEFD5, // rgb(255,239,213)
+ peach_puff = 0xFFDAB9, // rgb(255,218,185)
+ peru = 0xCD853F, // rgb(205,133,63)
+ pink = 0xFFC0CB, // rgb(255,192,203)
+ plum = 0xDDA0DD, // rgb(221,160,221)
+ powder_blue = 0xB0E0E6, // rgb(176,224,230)
+ purple = 0x800080, // rgb(128,0,128)
+ rebecca_purple = 0x663399, // rgb(102,51,153)
+ red = 0xFF0000, // rgb(255,0,0)
+ rosy_brown = 0xBC8F8F, // rgb(188,143,143)
+ royal_blue = 0x4169E1, // rgb(65,105,225)
+ saddle_brown = 0x8B4513, // rgb(139,69,19)
+ salmon = 0xFA8072, // rgb(250,128,114)
+ sandy_brown = 0xF4A460, // rgb(244,164,96)
+ sea_green = 0x2E8B57, // rgb(46,139,87)
+ sea_shell = 0xFFF5EE, // rgb(255,245,238)
+ sienna = 0xA0522D, // rgb(160,82,45)
+ silver = 0xC0C0C0, // rgb(192,192,192)
+ sky_blue = 0x87CEEB, // rgb(135,206,235)
+ slate_blue = 0x6A5ACD, // rgb(106,90,205)
+ slate_gray = 0x708090, // rgb(112,128,144)
+ snow = 0xFFFAFA, // rgb(255,250,250)
+ spring_green = 0x00FF7F, // rgb(0,255,127)
+ steel_blue = 0x4682B4, // rgb(70,130,180)
+ tan = 0xD2B48C, // rgb(210,180,140)
+ teal = 0x008080, // rgb(0,128,128)
+ thistle = 0xD8BFD8, // rgb(216,191,216)
+ tomato = 0xFF6347, // rgb(255,99,71)
+ turquoise = 0x40E0D0, // rgb(64,224,208)
+ violet = 0xEE82EE, // rgb(238,130,238)
+ wheat = 0xF5DEB3, // rgb(245,222,179)
+ white = 0xFFFFFF, // rgb(255,255,255)
+ white_smoke = 0xF5F5F5, // rgb(245,245,245)
+ yellow = 0xFFFF00, // rgb(255,255,0)
+ yellow_green = 0x9ACD32, // rgb(154,205,50)
+}; // enum class color
+
+// rgb is a struct for red, green and blue colors.
+// We use rgb as name because some editors will show it as color direct in the
+// editor.
+struct rgb
+{
+ FMT_CONSTEXPR_DECL rgb()
+ : r(0)
+ , g(0)
+ , b(0)
+ {
+ }
+ FMT_CONSTEXPR_DECL rgb(uint8_t r_, uint8_t g_, uint8_t b_)
+ : r(r_)
+ , g(g_)
+ , b(b_)
+ {
+ }
+ FMT_CONSTEXPR_DECL rgb(uint32_t hex)
+ : r((hex >> 16) & 0xFF)
+ , g((hex >> 8) & 0xFF)
+ , b((hex)&0xFF)
+ {
+ }
+ FMT_CONSTEXPR_DECL rgb(color hex)
+ : r((uint32_t(hex) >> 16) & 0xFF)
+ , g((uint32_t(hex) >> 8) & 0xFF)
+ , b(uint32_t(hex) & 0xFF)
+ {
+ }
+ uint8_t r;
+ uint8_t g;
+ uint8_t b;
+};
+
+void vprint_rgb(rgb fd, string_view format, format_args args);
+void vprint_rgb(rgb fd, rgb bg, string_view format, format_args args);
+
+/**
+ Formats a string and prints it to stdout using ANSI escape sequences to
+ specify foreground color 'fd'.
+ Example:
+ fmt::print(fmt::color::red, "Elapsed time: {0:.2f} seconds", 1.23);
+ */
+template<typename... Args>
+inline void print(rgb fd, string_view format_str, const Args &... args)
+{
+ vprint_rgb(fd, format_str, make_format_args(args...));
+}
+
+/**
+ Formats a string and prints it to stdout using ANSI escape sequences to
+ specify foreground color 'fd' and background color 'bg'.
+ Example:
+ fmt::print(fmt::color::red, fmt::color::black, "Elapsed time: {0:.2f}
+ seconds", 1.23);
+ */
+template<typename... Args>
+inline void print(rgb fd, rgb bg, string_view format_str, const Args &... args)
+{
+ vprint_rgb(fd, bg, format_str, make_format_args(args...));
+}
+#endif // FMT_EXTENDED_COLORS
+
+#if FMT_USE_USER_DEFINED_LITERALS
+namespace internal {
+
+#if FMT_UDL_TEMPLATE
+template<typename Char, Char... CHARS>
+class udl_formatter
+{
+public:
+ template<typename... Args>
+ std::basic_string<Char> operator()(const Args &... args) const
+ {
+ FMT_CONSTEXPR_DECL Char s[] = {CHARS..., '\0'};
+ FMT_CONSTEXPR_DECL bool invalid_format =
+ check_format_string<Char, error_handler, Args...>(basic_string_view<Char>(s, sizeof...(CHARS)));
+ (void)invalid_format;
+ return format(s, args...);
+ }
+};
+#else
+template<typename Char>
+struct udl_formatter
+{
+ const Char *str;
+
+ template<typename... Args>
+ auto operator()(Args &&... args) const -> decltype(format(str, std::forward<Args>(args)...))
+ {
+ return format(str, std::forward<Args>(args)...);
+ }
+};
+#endif // FMT_UDL_TEMPLATE
+
+template<typename Char>
+struct udl_arg
+{
+ const Char *str;
+
+ template<typename T>
+ named_arg<T, Char> operator=(T &&value) const
+ {
+ return {str, std::forward<T>(value)};
+ }
+};
+
+} // namespace internal
+
+inline namespace literals {
+
+#if FMT_UDL_TEMPLATE
+template<typename Char, Char... CHARS>
+FMT_CONSTEXPR internal::udl_formatter<Char, CHARS...> operator""_format()
+{
+ return {};
+}
+#else
+/**
+ \rst
+ User-defined literal equivalent of :func:`fmt::format`.
+
+ **Example**::
+
+ using namespace fmt::literals;
+ std::string message = "The answer is {}"_format(42);
+ \endrst
+ */
+inline internal::udl_formatter<char> operator"" _format(const char *s, std::size_t)
+{
+ return {s};
+}
+inline internal::udl_formatter<wchar_t> operator"" _format(const wchar_t *s, std::size_t)
+{
+ return {s};
+}
+#endif // FMT_UDL_TEMPLATE
+
+/**
+ \rst
+ User-defined literal equivalent of :func:`fmt::arg`.
+
+ **Example**::
+
+ using namespace fmt::literals;
+ fmt::print("Elapsed time: {s:.2f} seconds", "s"_a=1.23);
+ \endrst
+ */
+inline internal::udl_arg<char> operator"" _a(const char *s, std::size_t)
+{
+ return {s};
+}
+inline internal::udl_arg<wchar_t> operator"" _a(const wchar_t *s, std::size_t)
+{
+ return {s};
+}
+} // namespace literals
+#endif // FMT_USE_USER_DEFINED_LITERALS
+FMT_END_NAMESPACE
+
+#define FMT_STRING(s) \
+ [] { \
+ struct S : fmt::format_string \
+ { \
+ static FMT_CONSTEXPR decltype(s) data() \
+ { \
+ return s; \
+ } \
+ static FMT_CONSTEXPR size_t size() \
+ { \
+ return sizeof(s); \
+ } \
+ }; \
+ return S{}; \
+ }()
+
+#ifndef FMT_NO_FMT_STRING_ALIAS
+/**
+ \rst
+ Constructs a compile-time format string.
+
+ **Example**::
+
+ #include <fmt/format.h>
+ // A compile-time error because 'd' is an invalid specifier for strings.
+ std::string s = format(fmt("{:d}"), "foo");
+ \endrst
+ */
+#define fmt(s) FMT_STRING(s)
+#endif
+
+#ifdef FMT_HEADER_ONLY
+#define FMT_FUNC inline
+#include "format-inl.h"
+#else
+#define FMT_FUNC
+#endif
+
+// Restore warnings.
+#if FMT_GCC_VERSION >= 406 || FMT_CLANG_VERSION
+#pragma GCC diagnostic pop
+#endif
+
+#endif // FMT_FORMAT_H_
diff --git a/src/include/spdlog/fmt/bundled/locale.h b/src/include/spdlog/fmt/bundled/locale.h
new file mode 100644
index 0000000000000000000000000000000000000000..0fa78c8562067ff5eca4c56c893a9e276905004d
--- /dev/null
+++ b/src/include/spdlog/fmt/bundled/locale.h
@@ -0,0 +1,27 @@
+// Formatting library for C++ - locale support
+//
+// Copyright (c) 2012 - 2016, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#include "format.h"
+#include <locale>
+
+namespace fmt {
+class locale
+{
+private:
+ std::locale locale_;
+
+public:
+ explicit locale(std::locale loc = std::locale())
+ : locale_(loc)
+ {
+ }
+ std::locale get()
+ {
+ return locale_;
+ }
+};
+} // namespace fmt
diff --git a/src/include/spdlog/fmt/bundled/ostream.h b/src/include/spdlog/fmt/bundled/ostream.h
new file mode 100644
index 0000000000000000000000000000000000000000..439ded6e1ed62ad451bdf96f2b5f247a9e86f7e8
--- /dev/null
+++ b/src/include/spdlog/fmt/bundled/ostream.h
@@ -0,0 +1,173 @@
+// Formatting library for C++ - std::ostream support
+//
+// Copyright (c) 2012 - 2016, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#ifndef FMT_OSTREAM_H_
+#define FMT_OSTREAM_H_
+
+#include "format.h"
+#include <ostream>
+
+FMT_BEGIN_NAMESPACE
+namespace internal {
+
+template<class Char>
+class formatbuf : public std::basic_streambuf<Char>
+{
+private:
+ typedef typename std::basic_streambuf<Char>::int_type int_type;
+ typedef typename std::basic_streambuf<Char>::traits_type traits_type;
+
+ basic_buffer<Char> &buffer_;
+
+public:
+ formatbuf(basic_buffer<Char> &buffer)
+ : buffer_(buffer)
+ {
+ }
+
+protected:
+ // The put-area is actually always empty. This makes the implementation
+ // simpler and has the advantage that the streambuf and the buffer are always
+ // in sync and sputc never writes into uninitialized memory. The obvious
+ // disadvantage is that each call to sputc always results in a (virtual) call
+ // to overflow. There is no disadvantage here for sputn since this always
+ // results in a call to xsputn.
+
+ int_type overflow(int_type ch = traits_type::eof()) FMT_OVERRIDE
+ {
+ if (!traits_type::eq_int_type(ch, traits_type::eof()))
+ buffer_.push_back(static_cast<Char>(ch));
+ return ch;
+ }
+
+ std::streamsize xsputn(const Char *s, std::streamsize count) FMT_OVERRIDE
+ {
+ buffer_.append(s, s + count);
+ return count;
+ }
+};
+
+template<typename Char>
+struct test_stream : std::basic_ostream<Char>
+{
+private:
+ struct null;
+ // Hide all operator<< from std::basic_ostream<Char>.
+ void operator<<(null);
+};
+
+// Checks if T has a user-defined operator<< (e.g. not a member of
+// std::ostream).
+template<typename T, typename Char>
+class is_streamable
+{
+private:
+ template<typename U>
+ static decltype(internal::declval<test_stream<Char> &>() << internal::declval<U>(), std::true_type()) test(int);
+
+ template<typename>
+ static std::false_type test(...);
+
+ typedef decltype(test<T>(0)) result;
+
+public:
+ // std::string operator<< is not considered user-defined because we handle
+ // strings
+ // specially.
+ static const bool value = result::value && !std::is_same<T, std::string>::value;
+};
+
+// Disable conversion to int if T has an overloaded operator<< which is a free
+// function (not a member of std::ostream).
+template<typename T, typename Char>
+class convert_to_int<T, Char, true>
+{
+public:
+ static const bool value = convert_to_int<T, Char, false>::value && !is_streamable<T, Char>::value;
+};
+
+// Write the content of buf to os.
+template<typename Char>
+void write(std::basic_ostream<Char> &os, basic_buffer<Char> &buf)
+{
+ const Char *data = buf.data();
+ typedef std::make_unsigned<std::streamsize>::type UnsignedStreamSize;
+ UnsignedStreamSize size = buf.size();
+ UnsignedStreamSize max_size = internal::to_unsigned((std::numeric_limits<std::streamsize>::max)());
+ do
+ {
+ UnsignedStreamSize n = size <= max_size ? size : max_size;
+ os.write(data, static_cast<std::streamsize>(n));
+ data += n;
+ size -= n;
+ } while (size != 0);
+}
+
+template<typename Char, typename T>
+void format_value(basic_buffer<Char> &buffer, const T &value)
+{
+ internal::formatbuf<Char> format_buf(buffer);
+ std::basic_ostream<Char> output(&format_buf);
+ output.exceptions(std::ios_base::failbit | std::ios_base::badbit);
+ output << value;
+ buffer.resize(buffer.size());
+}
+
+// Disable builtin formatting of enums and use operator<< instead.
+template<typename T>
+struct format_enum<T, typename std::enable_if<std::is_enum<T>::value>::type> : std::false_type
+{
+};
+} // namespace internal
+
+// Formats an object of type T that has an overloaded ostream operator<<.
+template<typename T, typename Char>
+struct formatter<T, Char, typename std::enable_if<internal::is_streamable<T, Char>::value>::type> : formatter<basic_string_view<Char>, Char>
+{
+
+ template<typename Context>
+ auto format(const T &value, Context &ctx) -> decltype(ctx.out())
+ {
+ basic_memory_buffer<Char> buffer;
+ internal::format_value(buffer, value);
+ basic_string_view<Char> str(buffer.data(), buffer.size());
+ formatter<basic_string_view<Char>, Char>::format(str, ctx);
+ return ctx.out();
+ }
+};
+
+template<typename Char>
+inline void vprint(
+ std::basic_ostream<Char> &os, basic_string_view<Char> format_str, basic_format_args<typename buffer_context<Char>::type> args)
+{
+ basic_memory_buffer<Char> buffer;
+ vformat_to(buffer, format_str, args);
+ internal::write(os, buffer);
+}
+/**
+ \rst
+ Prints formatted data to the stream *os*.
+
+ **Example**::
+
+ fmt::print(cerr, "Don't {}!", "panic");
+ \endrst
+ */
+template<typename... Args>
+inline void print(std::ostream &os, string_view format_str, const Args &... args)
+{
+ vprint<char>(os, format_str, make_format_args<format_context>(args...));
+}
+
+template<typename... Args>
+inline void print(std::wostream &os, wstring_view format_str, const Args &... args)
+{
+ vprint<wchar_t>(os, format_str, make_format_args<wformat_context>(args...));
+}
+FMT_END_NAMESPACE
+
+#endif // FMT_OSTREAM_H_
diff --git a/src/include/spdlog/fmt/bundled/posix.h b/src/include/spdlog/fmt/bundled/posix.h
new file mode 100644
index 0000000000000000000000000000000000000000..20c758997187d77a870cc8cb247620f0322c44a5
--- /dev/null
+++ b/src/include/spdlog/fmt/bundled/posix.h
@@ -0,0 +1,484 @@
+// A C++ interface to POSIX functions.
+//
+// Copyright (c) 2012 - 2016, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#ifndef FMT_POSIX_H_
+#define FMT_POSIX_H_
+
+#if defined(__MINGW32__) || defined(__CYGWIN__)
+// Workaround MinGW bug https://sourceforge.net/p/mingw/bugs/2024/.
+#undef __STRICT_ANSI__
+#endif
+
+#include <errno.h>
+#include <fcntl.h> // for O_RDONLY
+#include <locale.h> // for locale_t
+#include <stdio.h>
+#include <stdlib.h> // for strtod_l
+
+#include <cstddef>
+
+#if defined __APPLE__ || defined(__FreeBSD__)
+#include <xlocale.h> // for LC_NUMERIC_MASK on OS X
+#endif
+
+#include "format.h"
+
+#ifndef FMT_POSIX
+#if defined(_WIN32) && !defined(__MINGW32__)
+// Fix warnings about deprecated symbols.
+#define FMT_POSIX(call) _##call
+#else
+#define FMT_POSIX(call) call
+#endif
+#endif
+
+// Calls to system functions are wrapped in FMT_SYSTEM for testability.
+#ifdef FMT_SYSTEM
+#define FMT_POSIX_CALL(call) FMT_SYSTEM(call)
+#else
+#define FMT_SYSTEM(call) call
+#ifdef _WIN32
+// Fix warnings about deprecated symbols.
+#define FMT_POSIX_CALL(call) ::_##call
+#else
+#define FMT_POSIX_CALL(call) ::call
+#endif
+#endif
+
+// Retries the expression while it evaluates to error_result and errno
+// equals to EINTR.
+#ifndef _WIN32
+#define FMT_RETRY_VAL(result, expression, error_result) \
+ do \
+ { \
+ result = (expression); \
+ } while (result == error_result && errno == EINTR)
+#else
+#define FMT_RETRY_VAL(result, expression, error_result) result = (expression)
+#endif
+
+#define FMT_RETRY(result, expression) FMT_RETRY_VAL(result, expression, -1)
+
+FMT_BEGIN_NAMESPACE
+
+/**
+ \rst
+ A reference to a null-terminated string. It can be constructed from a C
+ string or ``std::string``.
+
+ You can use one of the following typedefs for common character types:
+
+ +---------------+-----------------------------+
+ | Type | Definition |
+ +===============+=============================+
+ | cstring_view | basic_cstring_view<char> |
+ +---------------+-----------------------------+
+ | wcstring_view | basic_cstring_view<wchar_t> |
+ +---------------+-----------------------------+
+
+ This class is most useful as a parameter type to allow passing
+ different types of strings to a function, for example::
+
+ template <typename... Args>
+ std::string format(cstring_view format_str, const Args & ... args);
+
+ format("{}", 42);
+ format(std::string("{}"), 42);
+ \endrst
+ */
+template<typename Char>
+class basic_cstring_view
+{
+private:
+ const Char *data_;
+
+public:
+ /** Constructs a string reference object from a C string. */
+ basic_cstring_view(const Char *s)
+ : data_(s)
+ {
+ }
+
+ /**
+ \rst
+ Constructs a string reference from an ``std::string`` object.
+ \endrst
+ */
+ basic_cstring_view(const std::basic_string<Char> &s)
+ : data_(s.c_str())
+ {
+ }
+
+ /** Returns the pointer to a C string. */
+ const Char *c_str() const
+ {
+ return data_;
+ }
+};
+
+typedef basic_cstring_view<char> cstring_view;
+typedef basic_cstring_view<wchar_t> wcstring_view;
+
+// An error code.
+class error_code
+{
+private:
+ int value_;
+
+public:
+ explicit error_code(int value = 0) FMT_NOEXCEPT : value_(value) {}
+
+ int get() const FMT_NOEXCEPT
+ {
+ return value_;
+ }
+};
+
+// A buffered file.
+class buffered_file
+{
+private:
+ FILE *file_;
+
+ friend class file;
+
+ explicit buffered_file(FILE *f)
+ : file_(f)
+ {
+ }
+
+public:
+ // Constructs a buffered_file object which doesn't represent any file.
+ buffered_file() FMT_NOEXCEPT : file_(FMT_NULL) {}
+
+ // Destroys the object closing the file it represents if any.
+ FMT_API ~buffered_file() FMT_DTOR_NOEXCEPT;
+
+#if !FMT_USE_RVALUE_REFERENCES
+ // Emulate a move constructor and a move assignment operator if rvalue
+ // references are not supported.
+
+private:
+ // A proxy object to emulate a move constructor.
+ // It is private to make it impossible call operator Proxy directly.
+ struct Proxy
+ {
+ FILE *file;
+ };
+
+public:
+ // A "move constructor" for moving from a temporary.
+ buffered_file(Proxy p) FMT_NOEXCEPT : file_(p.file) {}
+
+ // A "move constructor" for moving from an lvalue.
+ buffered_file(buffered_file &f) FMT_NOEXCEPT : file_(f.file_)
+ {
+ f.file_ = FMT_NULL;
+ }
+
+ // A "move assignment operator" for moving from a temporary.
+ buffered_file &operator=(Proxy p)
+ {
+ close();
+ file_ = p.file;
+ return *this;
+ }
+
+ // A "move assignment operator" for moving from an lvalue.
+ buffered_file &operator=(buffered_file &other)
+ {
+ close();
+ file_ = other.file_;
+ other.file_ = FMT_NULL;
+ return *this;
+ }
+
+ // Returns a proxy object for moving from a temporary:
+ // buffered_file file = buffered_file(...);
+ operator Proxy() FMT_NOEXCEPT
+ {
+ Proxy p = {file_};
+ file_ = FMT_NULL;
+ return p;
+ }
+
+#else
+private:
+ FMT_DISALLOW_COPY_AND_ASSIGN(buffered_file);
+
+public:
+ buffered_file(buffered_file &&other) FMT_NOEXCEPT : file_(other.file_)
+ {
+ other.file_ = FMT_NULL;
+ }
+
+ buffered_file &operator=(buffered_file &&other)
+ {
+ close();
+ file_ = other.file_;
+ other.file_ = FMT_NULL;
+ return *this;
+ }
+#endif
+
+ // Opens a file.
+ FMT_API buffered_file(cstring_view filename, cstring_view mode);
+
+ // Closes the file.
+ FMT_API void close();
+
+ // Returns the pointer to a FILE object representing this file.
+ FILE *get() const FMT_NOEXCEPT
+ {
+ return file_;
+ }
+
+ // We place parentheses around fileno to workaround a bug in some versions
+ // of MinGW that define fileno as a macro.
+ FMT_API int(fileno)() const;
+
+ void vprint(string_view format_str, format_args args)
+ {
+ fmt::vprint(file_, format_str, args);
+ }
+
+ template<typename... Args>
+ inline void print(string_view format_str, const Args &... args)
+ {
+ vprint(format_str, make_format_args(args...));
+ }
+};
+
+// A file. Closed file is represented by a file object with descriptor -1.
+// Methods that are not declared with FMT_NOEXCEPT may throw
+// fmt::system_error in case of failure. Note that some errors such as
+// closing the file multiple times will cause a crash on Windows rather
+// than an exception. You can get standard behavior by overriding the
+// invalid parameter handler with _set_invalid_parameter_handler.
+class file
+{
+private:
+ int fd_; // File descriptor.
+
+ // Constructs a file object with a given descriptor.
+ explicit file(int fd)
+ : fd_(fd)
+ {
+ }
+
+public:
+ // Possible values for the oflag argument to the constructor.
+ enum
+ {
+ RDONLY = FMT_POSIX(O_RDONLY), // Open for reading only.
+ WRONLY = FMT_POSIX(O_WRONLY), // Open for writing only.
+ RDWR = FMT_POSIX(O_RDWR) // Open for reading and writing.
+ };
+
+ // Constructs a file object which doesn't represent any file.
+ file() FMT_NOEXCEPT : fd_(-1) {}
+
+ // Opens a file and constructs a file object representing this file.
+ FMT_API file(cstring_view path, int oflag);
+
+#if !FMT_USE_RVALUE_REFERENCES
+ // Emulate a move constructor and a move assignment operator if rvalue
+ // references are not supported.
+
+private:
+ // A proxy object to emulate a move constructor.
+ // It is private to make it impossible call operator Proxy directly.
+ struct Proxy
+ {
+ int fd;
+ };
+
+public:
+ // A "move constructor" for moving from a temporary.
+ file(Proxy p) FMT_NOEXCEPT : fd_(p.fd) {}
+
+ // A "move constructor" for moving from an lvalue.
+ file(file &other) FMT_NOEXCEPT : fd_(other.fd_)
+ {
+ other.fd_ = -1;
+ }
+
+ // A "move assignment operator" for moving from a temporary.
+ file &operator=(Proxy p)
+ {
+ close();
+ fd_ = p.fd;
+ return *this;
+ }
+
+ // A "move assignment operator" for moving from an lvalue.
+ file &operator=(file &other)
+ {
+ close();
+ fd_ = other.fd_;
+ other.fd_ = -1;
+ return *this;
+ }
+
+ // Returns a proxy object for moving from a temporary:
+ // file f = file(...);
+ operator Proxy() FMT_NOEXCEPT
+ {
+ Proxy p = {fd_};
+ fd_ = -1;
+ return p;
+ }
+
+#else
+private:
+ FMT_DISALLOW_COPY_AND_ASSIGN(file);
+
+public:
+ file(file &&other) FMT_NOEXCEPT : fd_(other.fd_)
+ {
+ other.fd_ = -1;
+ }
+
+ file &operator=(file &&other)
+ {
+ close();
+ fd_ = other.fd_;
+ other.fd_ = -1;
+ return *this;
+ }
+#endif
+
+ // Destroys the object closing the file it represents if any.
+ FMT_API ~file() FMT_DTOR_NOEXCEPT;
+
+ // Returns the file descriptor.
+ int descriptor() const FMT_NOEXCEPT
+ {
+ return fd_;
+ }
+
+ // Closes the file.
+ FMT_API void close();
+
+ // Returns the file size. The size has signed type for consistency with
+ // stat::st_size.
+ FMT_API long long size() const;
+
+ // Attempts to read count bytes from the file into the specified buffer.
+ FMT_API std::size_t read(void *buffer, std::size_t count);
+
+ // Attempts to write count bytes from the specified buffer to the file.
+ FMT_API std::size_t write(const void *buffer, std::size_t count);
+
+ // Duplicates a file descriptor with the dup function and returns
+ // the duplicate as a file object.
+ FMT_API static file dup(int fd);
+
+ // Makes fd be the copy of this file descriptor, closing fd first if
+ // necessary.
+ FMT_API void dup2(int fd);
+
+ // Makes fd be the copy of this file descriptor, closing fd first if
+ // necessary.
+ FMT_API void dup2(int fd, error_code &ec) FMT_NOEXCEPT;
+
+ // Creates a pipe setting up read_end and write_end file objects for reading
+ // and writing respectively.
+ FMT_API static void pipe(file &read_end, file &write_end);
+
+ // Creates a buffered_file object associated with this file and detaches
+ // this file object from the file.
+ FMT_API buffered_file fdopen(const char *mode);
+};
+
+// Returns the memory page size.
+long getpagesize();
+
+#if (defined(LC_NUMERIC_MASK) || defined(_MSC_VER)) && !defined(__ANDROID__) && !defined(__CYGWIN__) && !defined(__OpenBSD__)
+#define FMT_LOCALE
+#endif
+
+#ifdef FMT_LOCALE
+// A "C" numeric locale.
+class Locale
+{
+private:
+#ifdef _MSC_VER
+ typedef _locale_t locale_t;
+
+ enum
+ {
+ LC_NUMERIC_MASK = LC_NUMERIC
+ };
+
+ static locale_t newlocale(int category_mask, const char *locale, locale_t)
+ {
+ return _create_locale(category_mask, locale);
+ }
+
+ static void freelocale(locale_t locale)
+ {
+ _free_locale(locale);
+ }
+
+ static double strtod_l(const char *nptr, char **endptr, _locale_t locale)
+ {
+ return _strtod_l(nptr, endptr, locale);
+ }
+#endif
+
+ locale_t locale_;
+
+ FMT_DISALLOW_COPY_AND_ASSIGN(Locale);
+
+public:
+ typedef locale_t Type;
+
+ Locale()
+ : locale_(newlocale(LC_NUMERIC_MASK, "C", FMT_NULL))
+ {
+ if (!locale_)
+ FMT_THROW(system_error(errno, "cannot create locale"));
+ }
+ ~Locale()
+ {
+ freelocale(locale_);
+ }
+
+ Type get() const
+ {
+ return locale_;
+ }
+
+ // Converts string to floating-point number and advances str past the end
+ // of the parsed input.
+ double strtod(const char *&str) const
+ {
+ char *end = FMT_NULL;
+ double result = strtod_l(str, &end, locale_);
+ str = end;
+ return result;
+ }
+};
+#endif // FMT_LOCALE
+FMT_END_NAMESPACE
+
+#if !FMT_USE_RVALUE_REFERENCES
+namespace std {
+// For compatibility with C++98.
+inline fmt::buffered_file &move(fmt::buffered_file &f)
+{
+ return f;
+}
+inline fmt::file &move(fmt::file &f)
+{
+ return f;
+}
+} // namespace std
+#endif
+
+#endif // FMT_POSIX_H_
diff --git a/src/include/spdlog/fmt/bundled/printf.h b/src/include/spdlog/fmt/bundled/printf.h
new file mode 100644
index 0000000000000000000000000000000000000000..1782c2eaad8f9f03f46cc2bebbb34e731a8d2b8c
--- /dev/null
+++ b/src/include/spdlog/fmt/bundled/printf.h
@@ -0,0 +1,807 @@
+// Formatting library for C++
+//
+// Copyright (c) 2012 - 2016, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#ifndef FMT_PRINTF_H_
+#define FMT_PRINTF_H_
+
+#include <algorithm> // std::fill_n
+#include <limits> // std::numeric_limits
+
+#include "ostream.h"
+
+FMT_BEGIN_NAMESPACE
+namespace internal {
+
+// Checks if a value fits in int - used to avoid warnings about comparing
+// signed and unsigned integers.
+template<bool IsSigned>
+struct int_checker
+{
+ template<typename T>
+ static bool fits_in_int(T value)
+ {
+ unsigned max = std::numeric_limits<int>::max();
+ return value <= max;
+ }
+ static bool fits_in_int(bool)
+ {
+ return true;
+ }
+};
+
+template<>
+struct int_checker<true>
+{
+ template<typename T>
+ static bool fits_in_int(T value)
+ {
+ return value >= std::numeric_limits<int>::min() && value <= std::numeric_limits<int>::max();
+ }
+ static bool fits_in_int(int)
+ {
+ return true;
+ }
+};
+
+class printf_precision_handler : public function<int>
+{
+public:
+ template<typename T>
+ typename std::enable_if<std::is_integral<T>::value, int>::type operator()(T value)
+ {
+ if (!int_checker<std::numeric_limits<T>::is_signed>::fits_in_int(value))
+ FMT_THROW(format_error("number is too big"));
+ return static_cast<int>(value);
+ }
+
+ template<typename T>
+ typename std::enable_if<!std::is_integral<T>::value, int>::type operator()(T)
+ {
+ FMT_THROW(format_error("precision is not integer"));
+ return 0;
+ }
+};
+
+// An argument visitor that returns true iff arg is a zero integer.
+class is_zero_int : public function<bool>
+{
+public:
+ template<typename T>
+ typename std::enable_if<std::is_integral<T>::value, bool>::type operator()(T value)
+ {
+ return value == 0;
+ }
+
+ template<typename T>
+ typename std::enable_if<!std::is_integral<T>::value, bool>::type operator()(T)
+ {
+ return false;
+ }
+};
+
+template<typename T>
+struct make_unsigned_or_bool : std::make_unsigned<T>
+{
+};
+
+template<>
+struct make_unsigned_or_bool<bool>
+{
+ typedef bool type;
+};
+
+template<typename T, typename Context>
+class arg_converter : public function<void>
+{
+private:
+ typedef typename Context::char_type Char;
+
+ basic_format_arg<Context> &arg_;
+ typename Context::char_type type_;
+
+public:
+ arg_converter(basic_format_arg<Context> &arg, Char type)
+ : arg_(arg)
+ , type_(type)
+ {
+ }
+
+ void operator()(bool value)
+ {
+ if (type_ != 's')
+ operator()<bool>(value);
+ }
+
+ template<typename U>
+ typename std::enable_if<std::is_integral<U>::value>::type operator()(U value)
+ {
+ bool is_signed = type_ == 'd' || type_ == 'i';
+ typedef typename std::conditional<std::is_same<T, void>::value, U, T>::type TargetType;
+ if (const_check(sizeof(TargetType) <= sizeof(int)))
+ {
+ // Extra casts are used to silence warnings.
+ if (is_signed)
+ {
+ arg_ = internal::make_arg<Context>(static_cast<int>(static_cast<TargetType>(value)));
+ }
+ else
+ {
+ typedef typename make_unsigned_or_bool<TargetType>::type Unsigned;
+ arg_ = internal::make_arg<Context>(static_cast<unsigned>(static_cast<Unsigned>(value)));
+ }
+ }
+ else
+ {
+ if (is_signed)
+ {
+ // glibc's printf doesn't sign extend arguments of smaller types:
+ // std::printf("%lld", -42); // prints "4294967254"
+ // but we don't have to do the same because it's a UB.
+ arg_ = internal::make_arg<Context>(static_cast<long long>(value));
+ }
+ else
+ {
+ arg_ = internal::make_arg<Context>(static_cast<typename make_unsigned_or_bool<U>::type>(value));
+ }
+ }
+ }
+
+ template<typename U>
+ typename std::enable_if<!std::is_integral<U>::value>::type operator()(U)
+ {
+ // No coversion needed for non-integral types.
+ }
+};
+
+// Converts an integer argument to T for printf, if T is an integral type.
+// If T is void, the argument is converted to corresponding signed or unsigned
+// type depending on the type specifier: 'd' and 'i' - signed, other -
+// unsigned).
+template<typename T, typename Context, typename Char>
+void convert_arg(basic_format_arg<Context> &arg, Char type)
+{
+ visit(arg_converter<T, Context>(arg, type), arg);
+}
+
+// Converts an integer argument to char for printf.
+template<typename Context>
+class char_converter : public function<void>
+{
+private:
+ basic_format_arg<Context> &arg_;
+
+ FMT_DISALLOW_COPY_AND_ASSIGN(char_converter);
+
+public:
+ explicit char_converter(basic_format_arg<Context> &arg)
+ : arg_(arg)
+ {
+ }
+
+ template<typename T>
+ typename std::enable_if<std::is_integral<T>::value>::type operator()(T value)
+ {
+ typedef typename Context::char_type Char;
+ arg_ = internal::make_arg<Context>(static_cast<Char>(value));
+ }
+
+ template<typename T>
+ typename std::enable_if<!std::is_integral<T>::value>::type operator()(T)
+ {
+ // No coversion needed for non-integral types.
+ }
+};
+
+// Checks if an argument is a valid printf width specifier and sets
+// left alignment if it is negative.
+template<typename Char>
+class printf_width_handler : public function<unsigned>
+{
+private:
+ typedef basic_format_specs<Char> format_specs;
+
+ format_specs &spec_;
+
+ FMT_DISALLOW_COPY_AND_ASSIGN(printf_width_handler);
+
+public:
+ explicit printf_width_handler(format_specs &spec)
+ : spec_(spec)
+ {
+ }
+
+ template<typename T>
+ typename std::enable_if<std::is_integral<T>::value, unsigned>::type operator()(T value)
+ {
+ typedef typename internal::int_traits<T>::main_type UnsignedType;
+ UnsignedType width = static_cast<UnsignedType>(value);
+ if (internal::is_negative(value))
+ {
+ spec_.align_ = ALIGN_LEFT;
+ width = 0 - width;
+ }
+ unsigned int_max = std::numeric_limits<int>::max();
+ if (width > int_max)
+ FMT_THROW(format_error("number is too big"));
+ return static_cast<unsigned>(width);
+ }
+
+ template<typename T>
+ typename std::enable_if<!std::is_integral<T>::value, unsigned>::type operator()(T)
+ {
+ FMT_THROW(format_error("width is not integer"));
+ return 0;
+ }
+};
+} // namespace internal
+
+template<typename Range>
+class printf_arg_formatter;
+
+template<typename OutputIt, typename Char, typename ArgFormatter = printf_arg_formatter<back_insert_range<internal::basic_buffer<Char>>>>
+class basic_printf_context;
+
+/**
+ \rst
+ The ``printf`` argument formatter.
+ \endrst
+ */
+template<typename Range>
+class printf_arg_formatter : public internal::function<typename internal::arg_formatter_base<Range>::iterator>,
+ public internal::arg_formatter_base<Range>
+{
+private:
+ typedef typename Range::value_type char_type;
+ typedef decltype(internal::declval<Range>().begin()) iterator;
+ typedef internal::arg_formatter_base<Range> base;
+ typedef basic_printf_context<iterator, char_type> context_type;
+
+ context_type &context_;
+
+ void write_null_pointer(char)
+ {
+ this->spec().type_ = 0;
+ this->write("(nil)");
+ }
+
+ void write_null_pointer(wchar_t)
+ {
+ this->spec().type_ = 0;
+ this->write(L"(nil)");
+ }
+
+public:
+ typedef typename base::format_specs format_specs;
+
+ /**
+ \rst
+ Constructs an argument formatter object.
+ *buffer* is a reference to the output buffer and *spec* contains format
+ specifier information for standard argument types.
+ \endrst
+ */
+ printf_arg_formatter(internal::basic_buffer<char_type> &buffer, format_specs &spec, context_type &ctx)
+ : base(back_insert_range<internal::basic_buffer<char_type>>(buffer), spec)
+ , context_(ctx)
+ {
+ }
+
+ template<typename T>
+ typename std::enable_if<std::is_integral<T>::value, iterator>::type operator()(T value)
+ {
+ // MSVC2013 fails to compile separate overloads for bool and char_type so
+ // use std::is_same instead.
+ if (std::is_same<T, bool>::value)
+ {
+ format_specs &fmt_spec = this->spec();
+ if (fmt_spec.type_ != 's')
+ return base::operator()(value ? 1 : 0);
+ fmt_spec.type_ = 0;
+ this->write(value != 0);
+ }
+ else if (std::is_same<T, char_type>::value)
+ {
+ format_specs &fmt_spec = this->spec();
+ if (fmt_spec.type_ && fmt_spec.type_ != 'c')
+ return (*this)(static_cast<int>(value));
+ fmt_spec.flags_ = 0;
+ fmt_spec.align_ = ALIGN_RIGHT;
+ return base::operator()(value);
+ }
+ else
+ {
+ return base::operator()(value);
+ }
+ return this->out();
+ }
+
+ template<typename T>
+ typename std::enable_if<std::is_floating_point<T>::value, iterator>::type operator()(T value)
+ {
+ return base::operator()(value);
+ }
+
+ /** Formats a null-terminated C string. */
+ iterator operator()(const char *value)
+ {
+ if (value)
+ base::operator()(value);
+ else if (this->spec().type_ == 'p')
+ write_null_pointer(char_type());
+ else
+ this->write("(null)");
+ return this->out();
+ }
+
+ /** Formats a null-terminated wide C string. */
+ iterator operator()(const wchar_t *value)
+ {
+ if (value)
+ base::operator()(value);
+ else if (this->spec().type_ == 'p')
+ write_null_pointer(char_type());
+ else
+ this->write(L"(null)");
+ return this->out();
+ }
+
+ iterator operator()(basic_string_view<char_type> value)
+ {
+ return base::operator()(value);
+ }
+
+ iterator operator()(monostate value)
+ {
+ return base::operator()(value);
+ }
+
+ /** Formats a pointer. */
+ iterator operator()(const void *value)
+ {
+ if (value)
+ return base::operator()(value);
+ this->spec().type_ = 0;
+ write_null_pointer(char_type());
+ return this->out();
+ }
+
+ /** Formats an argument of a custom (user-defined) type. */
+ iterator operator()(typename basic_format_arg<context_type>::handle handle)
+ {
+ handle.format(context_);
+ return this->out();
+ }
+};
+
+template<typename T>
+struct printf_formatter
+{
+ template<typename ParseContext>
+ auto parse(ParseContext &ctx) -> decltype(ctx.begin())
+ {
+ return ctx.begin();
+ }
+
+ template<typename FormatContext>
+ auto format(const T &value, FormatContext &ctx) -> decltype(ctx.out())
+ {
+ internal::format_value(internal::get_container(ctx.out()), value);
+ return ctx.out();
+ }
+};
+
+/** This template formats data and writes the output to a writer. */
+template<typename OutputIt, typename Char, typename ArgFormatter>
+class basic_printf_context : private internal::context_base<OutputIt, basic_printf_context<OutputIt, Char, ArgFormatter>, Char>
+{
+public:
+ /** The character type for the output. */
+ typedef Char char_type;
+
+ template<typename T>
+ struct formatter_type
+ {
+ typedef printf_formatter<T> type;
+ };
+
+private:
+ typedef internal::context_base<OutputIt, basic_printf_context, Char> base;
+ typedef typename base::format_arg format_arg;
+ typedef basic_format_specs<char_type> format_specs;
+ typedef internal::null_terminating_iterator<char_type> iterator;
+
+ void parse_flags(format_specs &spec, iterator &it);
+
+ // Returns the argument with specified index or, if arg_index is equal
+ // to the maximum unsigned value, the next argument.
+ format_arg get_arg(iterator it, unsigned arg_index = (std::numeric_limits<unsigned>::max)());
+
+ // Parses argument index, flags and width and returns the argument index.
+ unsigned parse_header(iterator &it, format_specs &spec);
+
+public:
+ /**
+ \rst
+ Constructs a ``printf_context`` object. References to the arguments and
+ the writer are stored in the context object so make sure they have
+ appropriate lifetimes.
+ \endrst
+ */
+ basic_printf_context(OutputIt out, basic_string_view<char_type> format_str, basic_format_args<basic_printf_context> args)
+ : base(out, format_str, args)
+ {
+ }
+
+ using base::advance_to;
+ using base::out;
+ using base::parse_context;
+
+ /** Formats stored arguments and writes the output to the range. */
+ void format();
+};
+
+template<typename OutputIt, typename Char, typename AF>
+void basic_printf_context<OutputIt, Char, AF>::parse_flags(format_specs &spec, iterator &it)
+{
+ for (;;)
+ {
+ switch (*it++)
+ {
+ case '-':
+ spec.align_ = ALIGN_LEFT;
+ break;
+ case '+':
+ spec.flags_ |= SIGN_FLAG | PLUS_FLAG;
+ break;
+ case '0':
+ spec.fill_ = '0';
+ break;
+ case ' ':
+ spec.flags_ |= SIGN_FLAG;
+ break;
+ case '#':
+ spec.flags_ |= HASH_FLAG;
+ break;
+ default:
+ --it;
+ return;
+ }
+ }
+}
+
+template<typename OutputIt, typename Char, typename AF>
+typename basic_printf_context<OutputIt, Char, AF>::format_arg basic_printf_context<OutputIt, Char, AF>::get_arg(
+ iterator it, unsigned arg_index)
+{
+ (void)it;
+ if (arg_index == std::numeric_limits<unsigned>::max())
+ return this->do_get_arg(this->parse_context().next_arg_id());
+ return base::get_arg(arg_index - 1);
+}
+
+template<typename OutputIt, typename Char, typename AF>
+unsigned basic_printf_context<OutputIt, Char, AF>::parse_header(iterator &it, format_specs &spec)
+{
+ unsigned arg_index = std::numeric_limits<unsigned>::max();
+ char_type c = *it;
+ if (c >= '0' && c <= '9')
+ {
+ // Parse an argument index (if followed by '$') or a width possibly
+ // preceded with '0' flag(s).
+ internal::error_handler eh;
+ unsigned value = parse_nonnegative_int(it, eh);
+ if (*it == '$')
+ { // value is an argument index
+ ++it;
+ arg_index = value;
+ }
+ else
+ {
+ if (c == '0')
+ spec.fill_ = '0';
+ if (value != 0)
+ {
+ // Nonzero value means that we parsed width and don't need to
+ // parse it or flags again, so return now.
+ spec.width_ = value;
+ return arg_index;
+ }
+ }
+ }
+ parse_flags(spec, it);
+ // Parse width.
+ if (*it >= '0' && *it <= '9')
+ {
+ internal::error_handler eh;
+ spec.width_ = parse_nonnegative_int(it, eh);
+ }
+ else if (*it == '*')
+ {
+ ++it;
+ spec.width_ = visit(internal::printf_width_handler<char_type>(spec), get_arg(it));
+ }
+ return arg_index;
+}
+
+template<typename OutputIt, typename Char, typename AF>
+void basic_printf_context<OutputIt, Char, AF>::format()
+{
+ auto &buffer = internal::get_container(this->out());
+ auto start = iterator(this->parse_context());
+ auto it = start;
+ using internal::pointer_from;
+ while (*it)
+ {
+ char_type c = *it++;
+ if (c != '%')
+ continue;
+ if (*it == c)
+ {
+ buffer.append(pointer_from(start), pointer_from(it));
+ start = ++it;
+ continue;
+ }
+ buffer.append(pointer_from(start), pointer_from(it) - 1);
+
+ format_specs spec;
+ spec.align_ = ALIGN_RIGHT;
+
+ // Parse argument index, flags and width.
+ unsigned arg_index = parse_header(it, spec);
+
+ // Parse precision.
+ if (*it == '.')
+ {
+ ++it;
+ if ('0' <= *it && *it <= '9')
+ {
+ internal::error_handler eh;
+ spec.precision_ = static_cast<int>(parse_nonnegative_int(it, eh));
+ }
+ else if (*it == '*')
+ {
+ ++it;
+ spec.precision_ = visit(internal::printf_precision_handler(), get_arg(it));
+ }
+ else
+ {
+ spec.precision_ = 0;
+ }
+ }
+
+ format_arg arg = get_arg(it, arg_index);
+ if (spec.flag(HASH_FLAG) && visit(internal::is_zero_int(), arg))
+ spec.flags_ &= ~internal::to_unsigned<int>(HASH_FLAG);
+ if (spec.fill_ == '0')
+ {
+ if (arg.is_arithmetic())
+ spec.align_ = ALIGN_NUMERIC;
+ else
+ spec.fill_ = ' '; // Ignore '0' flag for non-numeric types.
+ }
+
+ // Parse length and convert the argument to the required type.
+ using internal::convert_arg;
+ switch (*it++)
+ {
+ case 'h':
+ if (*it == 'h')
+ convert_arg<signed char>(arg, *++it);
+ else
+ convert_arg<short>(arg, *it);
+ break;
+ case 'l':
+ if (*it == 'l')
+ convert_arg<long long>(arg, *++it);
+ else
+ convert_arg<long>(arg, *it);
+ break;
+ case 'j':
+ convert_arg<intmax_t>(arg, *it);
+ break;
+ case 'z':
+ convert_arg<std::size_t>(arg, *it);
+ break;
+ case 't':
+ convert_arg<std::ptrdiff_t>(arg, *it);
+ break;
+ case 'L':
+ // printf produces garbage when 'L' is omitted for long double, no
+ // need to do the same.
+ break;
+ default:
+ --it;
+ convert_arg<void>(arg, *it);
+ }
+
+ // Parse type.
+ if (!*it)
+ FMT_THROW(format_error("invalid format string"));
+ spec.type_ = static_cast<char>(*it++);
+ if (arg.is_integral())
+ {
+ // Normalize type.
+ switch (spec.type_)
+ {
+ case 'i':
+ case 'u':
+ spec.type_ = 'd';
+ break;
+ case 'c':
+ // TODO: handle wchar_t better?
+ visit(internal::char_converter<basic_printf_context>(arg), arg);
+ break;
+ }
+ }
+
+ start = it;
+
+ // Format argument.
+ visit(AF(buffer, spec, *this), arg);
+ }
+ buffer.append(pointer_from(start), pointer_from(it));
+}
+
+template<typename Char, typename Context>
+void printf(internal::basic_buffer<Char> &buf, basic_string_view<Char> format, basic_format_args<Context> args)
+{
+ Context(std::back_inserter(buf), format, args).format();
+}
+
+template<typename Buffer>
+struct printf_context
+{
+ typedef basic_printf_context<std::back_insert_iterator<Buffer>, typename Buffer::value_type> type;
+};
+
+template<typename... Args>
+inline format_arg_store<printf_context<internal::buffer>::type, Args...> make_printf_args(const Args &... args)
+{
+ return format_arg_store<printf_context<internal::buffer>::type, Args...>(args...);
+}
+typedef basic_format_args<printf_context<internal::buffer>::type> printf_args;
+typedef basic_format_args<printf_context<internal::wbuffer>::type> wprintf_args;
+
+inline std::string vsprintf(string_view format, printf_args args)
+{
+ memory_buffer buffer;
+ printf(buffer, format, args);
+ return to_string(buffer);
+}
+
+/**
+ \rst
+ Formats arguments and returns the result as a string.
+
+ **Example**::
+
+ std::string message = fmt::sprintf("The answer is %d", 42);
+ \endrst
+*/
+template<typename... Args>
+inline std::string sprintf(string_view format_str, const Args &... args)
+{
+ return vsprintf(format_str, make_format_args<typename printf_context<internal::buffer>::type>(args...));
+}
+
+inline std::wstring vsprintf(wstring_view format, wprintf_args args)
+{
+ wmemory_buffer buffer;
+ printf(buffer, format, args);
+ return to_string(buffer);
+}
+
+template<typename... Args>
+inline std::wstring sprintf(wstring_view format_str, const Args &... args)
+{
+ return vsprintf(format_str, make_format_args<typename printf_context<internal::wbuffer>::type>(args...));
+}
+
+template<typename Char>
+inline int vfprintf(
+ std::FILE *f, basic_string_view<Char> format, basic_format_args<typename printf_context<internal::basic_buffer<Char>>::type> args)
+{
+ basic_memory_buffer<Char> buffer;
+ printf(buffer, format, args);
+ std::size_t size = buffer.size();
+ return std::fwrite(buffer.data(), sizeof(Char), size, f) < size ? -1 : static_cast<int>(size);
+}
+
+/**
+ \rst
+ Prints formatted data to the file *f*.
+
+ **Example**::
+
+ fmt::fprintf(stderr, "Don't %s!", "panic");
+ \endrst
+ */
+template<typename... Args>
+inline int fprintf(std::FILE *f, string_view format_str, const Args &... args)
+{
+ auto vargs = make_format_args<typename printf_context<internal::buffer>::type>(args...);
+ return vfprintf<char>(f, format_str, vargs);
+}
+
+template<typename... Args>
+inline int fprintf(std::FILE *f, wstring_view format_str, const Args &... args)
+{
+ return vfprintf(f, format_str, make_format_args<typename printf_context<internal::wbuffer>::type>(args...));
+}
+
+inline int vprintf(string_view format, printf_args args)
+{
+ return vfprintf(stdout, format, args);
+}
+
+inline int vprintf(wstring_view format, wprintf_args args)
+{
+ return vfprintf(stdout, format, args);
+}
+
+/**
+ \rst
+ Prints formatted data to ``stdout``.
+
+ **Example**::
+
+ fmt::printf("Elapsed time: %.2f seconds", 1.23);
+ \endrst
+ */
+template<typename... Args>
+inline int printf(string_view format_str, const Args &... args)
+{
+ return vprintf(format_str, make_format_args<typename printf_context<internal::buffer>::type>(args...));
+}
+
+template<typename... Args>
+inline int printf(wstring_view format_str, const Args &... args)
+{
+ return vprintf(format_str, make_format_args<typename printf_context<internal::wbuffer>::type>(args...));
+}
+
+inline int vfprintf(std::ostream &os, string_view format_str, printf_args args)
+{
+ memory_buffer buffer;
+ printf(buffer, format_str, args);
+ internal::write(os, buffer);
+ return static_cast<int>(buffer.size());
+}
+
+inline int vfprintf(std::wostream &os, wstring_view format_str, wprintf_args args)
+{
+ wmemory_buffer buffer;
+ printf(buffer, format_str, args);
+ internal::write(os, buffer);
+ return static_cast<int>(buffer.size());
+}
+
+/**
+ \rst
+ Prints formatted data to the stream *os*.
+
+ **Example**::
+
+ fmt::fprintf(cerr, "Don't %s!", "panic");
+ \endrst
+ */
+template<typename... Args>
+inline int fprintf(std::ostream &os, string_view format_str, const Args &... args)
+{
+ auto vargs = make_format_args<typename printf_context<internal::buffer>::type>(args...);
+ return vfprintf(os, format_str, vargs);
+}
+
+template<typename... Args>
+inline int fprintf(std::wostream &os, wstring_view format_str, const Args &... args)
+{
+ auto vargs = make_format_args<typename printf_context<internal::buffer>::type>(args...);
+ return vfprintf(os, format_str, vargs);
+}
+FMT_END_NAMESPACE
+
+#endif // FMT_PRINTF_H_
diff --git a/src/include/spdlog/fmt/bundled/ranges.h b/src/include/spdlog/fmt/bundled/ranges.h
new file mode 100644
index 0000000000000000000000000000000000000000..ba2a979cc5854a0caddb92ea97728b89607b6e85
--- /dev/null
+++ b/src/include/spdlog/fmt/bundled/ranges.h
@@ -0,0 +1,344 @@
+// Formatting library for C++ - the core API
+//
+// Copyright (c) 2012 - present, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+//
+// Copyright (c) 2018 - present, Remotion (Igor Schulz)
+// All Rights Reserved
+// {fmt} support for ranges, containers and types tuple interface.
+
+#ifndef FMT_RANGES_H_
+#define FMT_RANGES_H_
+
+#include "format.h"
+#include <type_traits>
+
+// output only up to N items from the range.
+#ifndef FMT_RANGE_OUTPUT_LENGTH_LIMIT
+#define FMT_RANGE_OUTPUT_LENGTH_LIMIT 256
+#endif
+
+FMT_BEGIN_NAMESPACE
+
+template<typename Char>
+struct formatting_base
+{
+ template<typename ParseContext>
+ FMT_CONSTEXPR auto parse(ParseContext &ctx) -> decltype(ctx.begin())
+ {
+ return ctx.begin();
+ }
+};
+
+template<typename Char, typename Enable = void>
+struct formatting_range : formatting_base<Char>
+{
+ static FMT_CONSTEXPR_DECL const std::size_t range_length_limit = FMT_RANGE_OUTPUT_LENGTH_LIMIT; // output only up to N items from the
+ // range.
+ Char prefix;
+ Char delimiter;
+ Char postfix;
+ formatting_range()
+ : prefix('{')
+ , delimiter(',')
+ , postfix('}')
+ {
+ }
+ static FMT_CONSTEXPR_DECL const bool add_delimiter_spaces = true;
+ static FMT_CONSTEXPR_DECL const bool add_prepostfix_space = false;
+};
+
+template<typename Char, typename Enable = void>
+struct formatting_tuple : formatting_base<Char>
+{
+ Char prefix;
+ Char delimiter;
+ Char postfix;
+ formatting_tuple()
+ : prefix('(')
+ , delimiter(',')
+ , postfix(')')
+ {
+ }
+ static FMT_CONSTEXPR_DECL const bool add_delimiter_spaces = true;
+ static FMT_CONSTEXPR_DECL const bool add_prepostfix_space = false;
+};
+
+namespace internal {
+
+template<typename RangeT, typename OutputIterator>
+void copy(const RangeT &range, OutputIterator out)
+{
+ for (auto it = range.begin(), end = range.end(); it != end; ++it)
+ *out++ = *it;
+}
+
+template<typename OutputIterator>
+void copy(const char *str, OutputIterator out)
+{
+ const char *p_curr = str;
+ while (*p_curr)
+ {
+ *out++ = *p_curr++;
+ }
+}
+
+template<typename OutputIterator>
+void copy(char ch, OutputIterator out)
+{
+ *out++ = ch;
+}
+
+/// Return true value if T has std::string interface, like std::string_view.
+template<typename T>
+class is_like_std_string
+{
+ template<typename U>
+ static auto check(U *p) -> decltype(p->find('a'), p->length(), p->data(), int());
+ template<typename>
+ static void check(...);
+
+public:
+ static FMT_CONSTEXPR_DECL const bool value = !std::is_void<decltype(check<T>(FMT_NULL))>::value;
+};
+
+template<typename... Ts>
+struct conditional_helper
+{
+};
+
+template<typename T, typename _ = void>
+struct is_range_ : std::false_type
+{
+};
+
+#if !FMT_MSC_VER || FMT_MSC_VER > 1800
+template<typename T>
+struct is_range_<T, typename std::conditional<false,
+ conditional_helper<decltype(internal::declval<T>().begin()), decltype(internal::declval<T>().end())>, void>::type>
+ : std::true_type
+{
+};
+#endif
+
+/// tuple_size and tuple_element check.
+template<typename T>
+class is_tuple_like_
+{
+ template<typename U>
+ static auto check(U *p) -> decltype(std::tuple_size<U>::value, internal::declval<typename std::tuple_element<0, U>::type>(), int());
+ template<typename>
+ static void check(...);
+
+public:
+ static FMT_CONSTEXPR_DECL const bool value = !std::is_void<decltype(check<T>(FMT_NULL))>::value;
+};
+
+// Check for integer_sequence
+#if defined(__cpp_lib_integer_sequence) || FMT_MSC_VER >= 1900
+template<typename T, T... N>
+using integer_sequence = std::integer_sequence<T, N...>;
+template<std::size_t... N>
+using index_sequence = std::index_sequence<N...>;
+template<std::size_t N>
+using make_index_sequence = std::make_index_sequence<N>;
+#else
+template<typename T, T... N>
+struct integer_sequence
+{
+ typedef T value_type;
+
+ static FMT_CONSTEXPR std::size_t size()
+ {
+ return sizeof...(N);
+ }
+};
+
+template<std::size_t... N>
+using index_sequence = integer_sequence<std::size_t, N...>;
+
+template<typename T, std::size_t N, T... Ns>
+struct make_integer_sequence : make_integer_sequence<T, N - 1, N - 1, Ns...>
+{
+};
+template<typename T, T... Ns>
+struct make_integer_sequence<T, 0, Ns...> : integer_sequence<T, Ns...>
+{
+};
+
+template<std::size_t N>
+using make_index_sequence = make_integer_sequence<std::size_t, N>;
+#endif
+
+template<class Tuple, class F, size_t... Is>
+void for_each(index_sequence<Is...>, Tuple &&tup, F &&f) FMT_NOEXCEPT
+{
+ using std::get;
+ // using free function get<I>(T) now.
+ const int _[] = {0, ((void)f(get<Is>(tup)), 0)...};
+ (void)_; // blocks warnings
+}
+
+template<class T>
+FMT_CONSTEXPR make_index_sequence<std::tuple_size<T>::value> get_indexes(T const &)
+{
+ return {};
+}
+
+template<class Tuple, class F>
+void for_each(Tuple &&tup, F &&f)
+{
+ const auto indexes = get_indexes(tup);
+ for_each(indexes, std::forward<Tuple>(tup), std::forward<F>(f));
+}
+
+template<typename Arg>
+FMT_CONSTEXPR const char *format_str_quoted(
+ bool add_space, const Arg &, typename std::enable_if<!is_like_std_string<typename std::decay<Arg>::type>::value>::type * = nullptr)
+{
+ return add_space ? " {}" : "{}";
+}
+
+template<typename Arg>
+FMT_CONSTEXPR const char *format_str_quoted(
+ bool add_space, const Arg &, typename std::enable_if<is_like_std_string<typename std::decay<Arg>::type>::value>::type * = nullptr)
+{
+ return add_space ? " \"{}\"" : "\"{}\"";
+}
+
+FMT_CONSTEXPR const char *format_str_quoted(bool add_space, const char *)
+{
+ return add_space ? " \"{}\"" : "\"{}\"";
+}
+FMT_CONSTEXPR const wchar_t *format_str_quoted(bool add_space, const wchar_t *)
+{
+ return add_space ? L" \"{}\"" : L"\"{}\"";
+}
+
+FMT_CONSTEXPR const char *format_str_quoted(bool add_space, const char)
+{
+ return add_space ? " '{}'" : "'{}'";
+}
+FMT_CONSTEXPR const wchar_t *format_str_quoted(bool add_space, const wchar_t)
+{
+ return add_space ? L" '{}'" : L"'{}'";
+}
+
+} // namespace internal
+
+template<typename T>
+struct is_tuple_like
+{
+ static FMT_CONSTEXPR_DECL const bool value = internal::is_tuple_like_<T>::value && !internal::is_range_<T>::value;
+};
+
+template<typename TupleT, typename Char>
+struct formatter<TupleT, Char, typename std::enable_if<fmt::is_tuple_like<TupleT>::value>::type>
+{
+private:
+ // C++11 generic lambda for format()
+ template<typename FormatContext>
+ struct format_each
+ {
+ template<typename T>
+ void operator()(const T &v)
+ {
+ if (i > 0)
+ {
+ if (formatting.add_prepostfix_space)
+ {
+ *out++ = ' ';
+ }
+ internal::copy(formatting.delimiter, out);
+ }
+ format_to(out, internal::format_str_quoted((formatting.add_delimiter_spaces && i > 0), v), v);
+ ++i;
+ }
+
+ formatting_tuple<Char> &formatting;
+ std::size_t &i;
+ typename std::add_lvalue_reference<decltype(std::declval<FormatContext>().out())>::type out;
+ };
+
+public:
+ formatting_tuple<Char> formatting;
+
+ template<typename ParseContext>
+ FMT_CONSTEXPR auto parse(ParseContext &ctx) -> decltype(ctx.begin())
+ {
+ return formatting.parse(ctx);
+ }
+
+ template<typename FormatContext = format_context>
+ auto format(const TupleT &values, FormatContext &ctx) -> decltype(ctx.out())
+ {
+ auto out = ctx.out();
+ std::size_t i = 0;
+ internal::copy(formatting.prefix, out);
+
+ internal::for_each(values, format_each<FormatContext>{formatting, i, out});
+ if (formatting.add_prepostfix_space)
+ {
+ *out++ = ' ';
+ }
+ internal::copy(formatting.postfix, out);
+
+ return ctx.out();
+ }
+};
+
+template<typename T>
+struct is_range
+{
+ static FMT_CONSTEXPR_DECL const bool value = internal::is_range_<T>::value && !internal::is_like_std_string<T>::value;
+};
+
+template<typename RangeT, typename Char>
+struct formatter<RangeT, Char, typename std::enable_if<fmt::is_range<RangeT>::value>::type>
+{
+
+ formatting_range<Char> formatting;
+
+ template<typename ParseContext>
+ FMT_CONSTEXPR auto parse(ParseContext &ctx) -> decltype(ctx.begin())
+ {
+ return formatting.parse(ctx);
+ }
+
+ template<typename FormatContext>
+ typename FormatContext::iterator format(const RangeT &values, FormatContext &ctx)
+ {
+ auto out = ctx.out();
+ internal::copy(formatting.prefix, out);
+ std::size_t i = 0;
+ for (auto it = values.begin(), end = values.end(); it != end; ++it)
+ {
+ if (i > 0)
+ {
+ if (formatting.add_prepostfix_space)
+ {
+ *out++ = ' ';
+ }
+ internal::copy(formatting.delimiter, out);
+ }
+ format_to(out, internal::format_str_quoted((formatting.add_delimiter_spaces && i > 0), *it), *it);
+ if (++i > formatting.range_length_limit)
+ {
+ format_to(out, " ... <other elements>");
+ break;
+ }
+ }
+ if (formatting.add_prepostfix_space)
+ {
+ *out++ = ' ';
+ }
+ internal::copy(formatting.postfix, out);
+ return ctx.out();
+ }
+};
+
+FMT_END_NAMESPACE
+
+#endif // FMT_RANGES_H_
diff --git a/src/include/spdlog/fmt/bundled/time.h b/src/include/spdlog/fmt/bundled/time.h
new file mode 100644
index 0000000000000000000000000000000000000000..3e1443b81965fe060f487ca9d5e8671939523d99
--- /dev/null
+++ b/src/include/spdlog/fmt/bundled/time.h
@@ -0,0 +1,199 @@
+// Formatting library for C++ - time formatting
+//
+// Copyright (c) 2012 - 2016, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#ifndef FMT_TIME_H_
+#define FMT_TIME_H_
+
+#include "format.h"
+#include <ctime>
+
+FMT_BEGIN_NAMESPACE
+
+namespace internal {
+inline null<> localtime_r(...)
+{
+ return null<>();
+}
+inline null<> localtime_s(...)
+{
+ return null<>();
+}
+inline null<> gmtime_r(...)
+{
+ return null<>();
+}
+inline null<> gmtime_s(...)
+{
+ return null<>();
+}
+} // namespace internal
+
+// Thread-safe replacement for std::localtime
+inline std::tm localtime(std::time_t time)
+{
+ struct dispatcher
+ {
+ std::time_t time_;
+ std::tm tm_;
+
+ dispatcher(std::time_t t)
+ : time_(t)
+ {
+ }
+
+ bool run()
+ {
+ using namespace fmt::internal;
+ return handle(localtime_r(&time_, &tm_));
+ }
+
+ bool handle(std::tm *tm)
+ {
+ return tm != FMT_NULL;
+ }
+
+ bool handle(internal::null<>)
+ {
+ using namespace fmt::internal;
+ return fallback(localtime_s(&tm_, &time_));
+ }
+
+ bool fallback(int res)
+ {
+ return res == 0;
+ }
+
+ bool fallback(internal::null<>)
+ {
+ using namespace fmt::internal;
+ std::tm *tm = std::localtime(&time_);
+ if (tm)
+ tm_ = *tm;
+ return tm != FMT_NULL;
+ }
+ };
+ dispatcher lt(time);
+ if (lt.run())
+ return lt.tm_;
+ // Too big time values may be unsupported.
+ FMT_THROW(format_error("time_t value out of range"));
+}
+
+// Thread-safe replacement for std::gmtime
+inline std::tm gmtime(std::time_t time)
+{
+ struct dispatcher
+ {
+ std::time_t time_;
+ std::tm tm_;
+
+ dispatcher(std::time_t t)
+ : time_(t)
+ {
+ }
+
+ bool run()
+ {
+ using namespace fmt::internal;
+ return handle(gmtime_r(&time_, &tm_));
+ }
+
+ bool handle(std::tm *tm)
+ {
+ return tm != FMT_NULL;
+ }
+
+ bool handle(internal::null<>)
+ {
+ using namespace fmt::internal;
+ return fallback(gmtime_s(&tm_, &time_));
+ }
+
+ bool fallback(int res)
+ {
+ return res == 0;
+ }
+
+ bool fallback(internal::null<>)
+ {
+ std::tm *tm = std::gmtime(&time_);
+ if (tm)
+ tm_ = *tm;
+ return tm != FMT_NULL;
+ }
+ };
+ dispatcher gt(time);
+ if (gt.run())
+ return gt.tm_;
+ // Too big time values may be unsupported.
+ FMT_THROW(format_error("time_t value out of range"));
+}
+
+namespace internal {
+inline std::size_t strftime(char *str, std::size_t count, const char *format, const std::tm *time)
+{
+ return std::strftime(str, count, format, time);
+}
+
+inline std::size_t strftime(wchar_t *str, std::size_t count, const wchar_t *format, const std::tm *time)
+{
+ return std::wcsftime(str, count, format, time);
+}
+} // namespace internal
+
+template<typename Char>
+struct formatter<std::tm, Char>
+{
+ template<typename ParseContext>
+ auto parse(ParseContext &ctx) -> decltype(ctx.begin())
+ {
+ auto it = internal::null_terminating_iterator<Char>(ctx);
+ if (*it == ':')
+ ++it;
+ auto end = it;
+ while (*end && *end != '}')
+ ++end;
+ tm_format.reserve(end - it + 1);
+ using internal::pointer_from;
+ tm_format.append(pointer_from(it), pointer_from(end));
+ tm_format.push_back('\0');
+ return pointer_from(end);
+ }
+
+ template<typename FormatContext>
+ auto format(const std::tm &tm, FormatContext &ctx) -> decltype(ctx.out())
+ {
+ internal::basic_buffer<Char> &buf = internal::get_container(ctx.out());
+ std::size_t start = buf.size();
+ for (;;)
+ {
+ std::size_t size = buf.capacity() - start;
+ std::size_t count = internal::strftime(&buf[start], size, &tm_format[0], &tm);
+ if (count != 0)
+ {
+ buf.resize(start + count);
+ break;
+ }
+ if (size >= tm_format.size() * 256)
+ {
+ // If the buffer is 256 times larger than the format string, assume
+ // that `strftime` gives an empty result. There doesn't seem to be a
+ // better way to distinguish the two cases:
+ // https://github.com/fmtlib/fmt/issues/367
+ break;
+ }
+ const std::size_t MIN_GROWTH = 10;
+ buf.reserve(buf.capacity() + (size > MIN_GROWTH ? size : MIN_GROWTH));
+ }
+ return ctx.out();
+ }
+
+ basic_memory_buffer<Char> tm_format;
+};
+FMT_END_NAMESPACE
+
+#endif // FMT_TIME_H_
diff --git a/src/include/spdlog/fmt/fmt.h b/src/include/spdlog/fmt/fmt.h
new file mode 100644
index 0000000000000000000000000000000000000000..616af0cc7812b0554311aec98a79dbd7b3820fdd
--- /dev/null
+++ b/src/include/spdlog/fmt/fmt.h
@@ -0,0 +1,25 @@
+//
+// Copyright(c) 2016-2018 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+//
+// Include a bundled header-only copy of fmtlib or an external one.
+// By default spdlog include its own copy.
+//
+
+#if !defined(SPDLOG_FMT_EXTERNAL)
+#ifndef FMT_HEADER_ONLY
+#define FMT_HEADER_ONLY
+#endif
+#ifndef FMT_USE_WINDOWS_H
+#define FMT_USE_WINDOWS_H 0
+#endif
+#include "bundled/core.h"
+#include "bundled/format.h"
+#else // external fmtlib
+#include <fmt/core.h>
+#include <fmt/format.h>
+#endif
diff --git a/src/include/spdlog/fmt/ostr.h b/src/include/spdlog/fmt/ostr.h
new file mode 100644
index 0000000000000000000000000000000000000000..9902898f84a80a55739c41edc2dc1602e0d6f573
--- /dev/null
+++ b/src/include/spdlog/fmt/ostr.h
@@ -0,0 +1,18 @@
+//
+// Copyright(c) 2016 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+//
+// include bundled or external copy of fmtlib's ostream support
+//
+#if !defined(SPDLOG_FMT_EXTERNAL)
+#ifndef FMT_HEADER_ONLY
+#define FMT_HEADER_ONLY
+#endif
+#include "bundled/ostream.h"
+#include "fmt.h"
+#else
+#include <fmt/ostream.h>
+#endif
diff --git a/src/include/spdlog/formatter.h b/src/include/spdlog/formatter.h
new file mode 100644
index 0000000000000000000000000000000000000000..a7ef6b8b5ae6f0dd6097875ef0c1cab5d8c648d2
--- /dev/null
+++ b/src/include/spdlog/formatter.h
@@ -0,0 +1,20 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "fmt/fmt.h"
+#include "spdlog/details/log_msg.h"
+
+namespace spdlog {
+
+class formatter
+{
+public:
+ virtual ~formatter() = default;
+ virtual void format(const details::log_msg &msg, fmt::memory_buffer &dest) = 0;
+ virtual std::unique_ptr<formatter> clone() const = 0;
+};
+} // namespace spdlog
diff --git a/src/include/spdlog/logger.h b/src/include/spdlog/logger.h
new file mode 100644
index 0000000000000000000000000000000000000000..91eec4bc3866e216dd7b0ae9ea09fcee5d60e3e5
--- /dev/null
+++ b/src/include/spdlog/logger.h
@@ -0,0 +1,162 @@
+//
+// Copyright(c) 2015-2108 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+// Thread safe logger (except for set_pattern(..), set_formatter(..) and
+// set_error_handler())
+// Has name, log level, vector of std::shared sink pointers and formatter
+// Upon each log write the logger:
+// 1. Checks if its log level is enough to log the message and if yes:
+// 2. Call the underlying sinks to do the job.
+// 3. Each sink use its own private copy of a formatter to format the message
+// and send to its destination.
+//
+// The use of private formatter per sink provides the opportunity to cache some
+// formatted data,
+// and support customize format per each sink.
+
+#include "spdlog/common.h"
+#include "spdlog/formatter.h"
+#include "spdlog/sinks/sink.h"
+
+#include <memory>
+#include <string>
+#include <vector>
+
+namespace spdlog {
+
+class logger
+{
+public:
+ logger(std::string name, sink_ptr single_sink);
+ logger(std::string name, sinks_init_list sinks);
+
+ template<typename It>
+ logger(std::string name, const It &begin, const It &end);
+
+ virtual ~logger();
+
+ logger(const logger &) = delete;
+ logger &operator=(const logger &) = delete;
+
+ template<typename... Args>
+ void log(level::level_enum lvl, const char *fmt, const Args &... args);
+
+ template<typename... Args>
+ void log(level::level_enum lvl, const char *msg);
+
+ template<typename... Args>
+ void trace(const char *fmt, const Args &... args);
+
+ template<typename... Args>
+ void debug(const char *fmt, const Args &... args);
+
+ template<typename... Args>
+ void info(const char *fmt, const Args &... args);
+
+ template<typename... Args>
+ void warn(const char *fmt, const Args &... args);
+
+ template<typename... Args>
+ void error(const char *fmt, const Args &... args);
+
+ template<typename... Args>
+ void critical(const char *fmt, const Args &... args);
+
+#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
+ template<typename... Args>
+ void log(level::level_enum lvl, const wchar_t *fmt, const Args &... args);
+
+ template<typename... Args>
+ void trace(const wchar_t *fmt, const Args &... args);
+
+ template<typename... Args>
+ void debug(const wchar_t *fmt, const Args &... args);
+
+ template<typename... Args>
+ void info(const wchar_t *fmt, const Args &... args);
+
+ template<typename... Args>
+ void warn(const wchar_t *fmt, const Args &... args);
+
+ template<typename... Args>
+ void error(const wchar_t *fmt, const Args &... args);
+
+ template<typename... Args>
+ void critical(const wchar_t *fmt, const Args &... args);
+#endif // SPDLOG_WCHAR_TO_UTF8_SUPPORT
+
+ template<typename T>
+ void log(level::level_enum lvl, const T &);
+
+ template<typename T>
+ void trace(const T &msg);
+
+ template<typename T>
+ void debug(const T &msg);
+
+ template<typename T>
+ void info(const T &msg);
+
+ template<typename T>
+ void warn(const T &msg);
+
+ template<typename T>
+ void error(const T &msg);
+
+ template<typename T>
+ void critical(const T &msg);
+
+ bool should_log(level::level_enum msg_level) const;
+ void set_level(level::level_enum log_level);
+ level::level_enum level() const;
+ const std::string &name() const;
+
+ // set formatting for the sinks in this logger.
+ // each sink will get a seperate instance of the formatter object.
+ void set_formatter(std::unique_ptr<formatter> formatter);
+ void set_pattern(std::string pattern, pattern_time_type time_type = pattern_time_type::local);
+
+ void flush();
+ void flush_on(level::level_enum log_level);
+
+ const std::vector<sink_ptr> &sinks() const;
+
+ std::vector<sink_ptr> &sinks();
+
+ void set_error_handler(log_err_handler err_handler);
+ log_err_handler error_handler();
+
+protected:
+ virtual void sink_it_(details::log_msg &msg);
+ virtual void flush_();
+
+ bool should_flush_(const details::log_msg &msg);
+
+ // default error handler: print the error to stderr with the max rate of 1
+ // message/minute
+ void default_err_handler_(const std::string &msg);
+
+ // increment the message count (only if
+ // defined(SPDLOG_ENABLE_MESSAGE_COUNTER))
+ void incr_msg_counter_(details::log_msg &msg);
+
+ const std::string name_;
+ std::vector<sink_ptr> sinks_;
+ spdlog::level_t level_;
+ spdlog::level_t flush_level_;
+ log_err_handler err_handler_;
+ std::atomic<time_t> last_err_time_;
+ std::atomic<size_t> msg_counter_;
+
+#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
+ std::wstring_convert<std::codecvt_utf8<wchar_t>> wstring_converter_;
+ std::mutex wstring_converter_mutex_;
+#endif
+};
+} // namespace spdlog
+
+#include "details/logger_impl.h"
diff --git a/src/include/spdlog/sinks/android_sink.h b/src/include/spdlog/sinks/android_sink.h
new file mode 100644
index 0000000000000000000000000000000000000000..be70db001dca583a0c64c493eb58077abd75af93
--- /dev/null
+++ b/src/include/spdlog/sinks/android_sink.h
@@ -0,0 +1,117 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "spdlog/details/fmt_helper.h"
+#include "spdlog/details/null_mutex.h"
+#include "spdlog/details/os.h"
+#include "spdlog/sinks/base_sink.h"
+
+#include <android/log.h>
+#include <chrono>
+#include <mutex>
+#include <string>
+#include <thread>
+
+#if !defined(SPDLOG_ANDROID_RETRIES)
+#define SPDLOG_ANDROID_RETRIES 2
+#endif
+
+namespace spdlog {
+namespace sinks {
+
+/*
+ * Android sink (logging using __android_log_write)
+ */
+template<typename Mutex>
+class android_sink SPDLOG_FINAL : public base_sink<Mutex>
+{
+public:
+ explicit android_sink(const std::string &tag = "spdlog", bool use_raw_msg = false)
+ : tag_(tag)
+ , use_raw_msg_(use_raw_msg)
+ {
+ }
+
+protected:
+ void sink_it_(const details::log_msg &msg) override
+ {
+ const android_LogPriority priority = convert_to_android_(msg.level);
+ fmt::memory_buffer formatted;
+ if (use_raw_msg_)
+ {
+ fmt_helper::append_buf(msg.raw, formatted);
+ }
+ else
+ {
+ formatter_->format(msg, formatted);
+ }
+ formatted.push_back('\0');
+ const char *msg_output = formatted.data();
+
+ // See system/core/liblog/logger_write.c for explanation of return value
+ int ret = __android_log_write(priority, tag_.c_str(), msg_output);
+ int retry_count = 0;
+ while ((ret == -11 /*EAGAIN*/) && (retry_count < SPDLOG_ANDROID_RETRIES))
+ {
+ details::os::sleep_for_millis(5);
+ ret = __android_log_write(priority, tag_.c_str(), msg_output);
+ retry_count++;
+ }
+
+ if (ret < 0)
+ {
+ throw spdlog_ex("__android_log_write() failed", ret);
+ }
+ }
+
+ void flush_() override {}
+
+private:
+ static android_LogPriority convert_to_android_(spdlog::level::level_enum level)
+ {
+ switch (level)
+ {
+ case spdlog::level::trace:
+ return ANDROID_LOG_VERBOSE;
+ case spdlog::level::debug:
+ return ANDROID_LOG_DEBUG;
+ case spdlog::level::info:
+ return ANDROID_LOG_INFO;
+ case spdlog::level::warn:
+ return ANDROID_LOG_WARN;
+ case spdlog::level::err:
+ return ANDROID_LOG_ERROR;
+ case spdlog::level::critical:
+ return ANDROID_LOG_FATAL;
+ default:
+ return ANDROID_LOG_DEFAULT;
+ }
+ }
+
+ std::string tag_;
+ bool use_raw_msg_;
+};
+
+using android_sink_mt = android_sink<std::mutex>;
+using android_sink_st = android_sink<details::null_mutex>;
+} // namespace sinks
+
+// Create and register android syslog logger
+
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> android_logger_mt(const std::string &logger_name, const std::string &tag = "spdlog")
+{
+ return Factory::template create<sinks::android_sink_mt>(logger_name, tag);
+}
+
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> android_logger_st(const std::string &logger_name, const std::string &tag = "spdlog")
+{
+ return Factory::template create<sinks::android_sink_st>(logger_name, tag);
+}
+
+} // namespace spdlog
diff --git a/src/include/spdlog/sinks/ansicolor_sink.h b/src/include/spdlog/sinks/ansicolor_sink.h
new file mode 100644
index 0000000000000000000000000000000000000000..3b79976da773d16c33af5cbc505130ceb0752093
--- /dev/null
+++ b/src/include/spdlog/sinks/ansicolor_sink.h
@@ -0,0 +1,156 @@
+//
+// Copyright(c) 2017 spdlog authors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "spdlog/details/console_globals.h"
+#include "spdlog/details/null_mutex.h"
+#include "spdlog/details/os.h"
+
+#include <memory>
+#include <mutex>
+#include <string>
+#include <unordered_map>
+
+namespace spdlog {
+namespace sinks {
+
+/**
+ * This sink prefixes the output with an ANSI escape sequence color code
+ * depending on the severity
+ * of the message.
+ * If no color terminal detected, omit the escape codes.
+ */
+template<typename TargetStream, class ConsoleMutex>
+class ansicolor_sink : public sink
+{
+public:
+ using mutex_t = typename ConsoleMutex::mutex_t;
+ ansicolor_sink()
+ : target_file_(TargetStream::stream())
+ , mutex_(ConsoleMutex::mutex())
+
+ {
+ should_do_colors_ = details::os::in_terminal(target_file_) && details::os::is_color_terminal();
+ colors_[level::trace] = white;
+ colors_[level::debug] = cyan;
+ colors_[level::info] = green;
+ colors_[level::warn] = yellow + bold;
+ colors_[level::err] = red + bold;
+ colors_[level::critical] = bold + on_red;
+ colors_[level::off] = reset;
+ }
+
+ ~ansicolor_sink() override = default;
+
+ ansicolor_sink(const ansicolor_sink &other) = delete;
+ ansicolor_sink &operator=(const ansicolor_sink &other) = delete;
+
+ void set_color(level::level_enum color_level, const std::string &color)
+ {
+ std::lock_guard<mutex_t> lock(mutex_);
+ colors_[color_level] = color;
+ }
+
+ /// Formatting codes
+ const std::string reset = "\033[m";
+ const std::string bold = "\033[1m";
+ const std::string dark = "\033[2m";
+ const std::string underline = "\033[4m";
+ const std::string blink = "\033[5m";
+ const std::string reverse = "\033[7m";
+ const std::string concealed = "\033[8m";
+ const std::string clear_line = "\033[K";
+
+ // Foreground colors
+ const std::string black = "\033[30m";
+ const std::string red = "\033[31m";
+ const std::string green = "\033[32m";
+ const std::string yellow = "\033[33m";
+ const std::string blue = "\033[34m";
+ const std::string magenta = "\033[35m";
+ const std::string cyan = "\033[36m";
+ const std::string white = "\033[37m";
+
+ /// Background colors
+ const std::string on_black = "\033[40m";
+ const std::string on_red = "\033[41m";
+ const std::string on_green = "\033[42m";
+ const std::string on_yellow = "\033[43m";
+ const std::string on_blue = "\033[44m";
+ const std::string on_magenta = "\033[45m";
+ const std::string on_cyan = "\033[46m";
+ const std::string on_white = "\033[47m";
+
+ void log(const details::log_msg &msg) SPDLOG_FINAL override
+ {
+ // Wrap the originally formatted message in color codes.
+ // If color is not supported in the terminal, log as is instead.
+ std::lock_guard<mutex_t> lock(mutex_);
+
+ fmt::memory_buffer formatted;
+ formatter_->format(msg, formatted);
+ if (should_do_colors_ && msg.color_range_end > msg.color_range_start)
+ {
+ // before color range
+ print_range_(formatted, 0, msg.color_range_start);
+ // in color range
+ print_ccode_(colors_[msg.level]);
+ print_range_(formatted, msg.color_range_start, msg.color_range_end);
+ print_ccode_(reset);
+ // after color range
+ print_range_(formatted, msg.color_range_end, formatted.size());
+ }
+ else // no color
+ {
+ print_range_(formatted, 0, formatted.size());
+ }
+ fflush(target_file_);
+ }
+
+ void flush() SPDLOG_FINAL override
+ {
+ std::lock_guard<mutex_t> lock(mutex_);
+ fflush(target_file_);
+ }
+
+ void set_pattern(const std::string &pattern) override SPDLOG_FINAL
+ {
+ std::lock_guard<mutex_t> lock(mutex_);
+ formatter_ = std::unique_ptr<spdlog::formatter>(new pattern_formatter(pattern));
+ }
+
+ void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) override SPDLOG_FINAL
+ {
+ std::lock_guard<mutex_t> lock(mutex_);
+ formatter_ = std::move(sink_formatter);
+ }
+
+private:
+ void print_ccode_(const std::string &color_code)
+ {
+ fwrite(color_code.data(), sizeof(char), color_code.size(), target_file_);
+ }
+ void print_range_(const fmt::memory_buffer &formatted, size_t start, size_t end)
+ {
+ fwrite(formatted.data() + start, sizeof(char), end - start, target_file_);
+ }
+
+ FILE *target_file_;
+ mutex_t &mutex_;
+
+ bool should_do_colors_;
+ std::unordered_map<level::level_enum, std::string, level::level_hasher> colors_;
+};
+
+using ansicolor_stdout_sink_mt = ansicolor_sink<details::console_stdout, details::console_mutex>;
+using ansicolor_stdout_sink_st = ansicolor_sink<details::console_stdout, details::console_nullmutex>;
+
+using ansicolor_stderr_sink_mt = ansicolor_sink<details::console_stderr, details::console_mutex>;
+using ansicolor_stderr_sink_st = ansicolor_sink<details::console_stderr, details::console_nullmutex>;
+
+} // namespace sinks
+
+} // namespace spdlog
diff --git a/src/include/spdlog/sinks/base_sink.h b/src/include/spdlog/sinks/base_sink.h
new file mode 100644
index 0000000000000000000000000000000000000000..5a3821bcce0df4713163f15806ae725279d158f0
--- /dev/null
+++ b/src/include/spdlog/sinks/base_sink.h
@@ -0,0 +1,63 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+//
+// base sink templated over a mutex (either dummy or real)
+// concrete implementation should override the sink_it_() and flush_() methods.
+// locking is taken care of in this class - no locking needed by the
+// implementers..
+//
+
+#include "spdlog/common.h"
+#include "spdlog/details/log_msg.h"
+#include "spdlog/formatter.h"
+#include "spdlog/sinks/sink.h"
+
+namespace spdlog {
+namespace sinks {
+template<typename Mutex>
+class base_sink : public sink
+{
+public:
+ base_sink()
+ : sink()
+ {
+ }
+
+ base_sink(const base_sink &) = delete;
+ base_sink &operator=(const base_sink &) = delete;
+
+ void log(const details::log_msg &msg) SPDLOG_FINAL override
+ {
+ std::lock_guard<Mutex> lock(mutex_);
+ sink_it_(msg);
+ }
+
+ void flush() SPDLOG_FINAL override
+ {
+ std::lock_guard<Mutex> lock(mutex_);
+ flush_();
+ }
+
+ void set_pattern(const std::string &pattern) SPDLOG_FINAL override
+ {
+ std::lock_guard<Mutex> lock(mutex_);
+ formatter_ = std::unique_ptr<spdlog::formatter>(new pattern_formatter(pattern));
+ }
+
+ void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) SPDLOG_FINAL override
+ {
+ std::lock_guard<Mutex> lock(mutex_);
+ formatter_ = std::move(sink_formatter);
+ }
+
+protected:
+ virtual void sink_it_(const details::log_msg &msg) = 0;
+ virtual void flush_() = 0;
+ Mutex mutex_;
+};
+} // namespace sinks
+} // namespace spdlog
diff --git a/src/include/spdlog/sinks/basic_file_sink.h b/src/include/spdlog/sinks/basic_file_sink.h
new file mode 100644
index 0000000000000000000000000000000000000000..5db38e8af112f5a1fb96544acf85e998d627447a
--- /dev/null
+++ b/src/include/spdlog/sinks/basic_file_sink.h
@@ -0,0 +1,66 @@
+//
+// Copyright(c) 2015-2018 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+#include "spdlog/details/file_helper.h"
+#include "spdlog/details/null_mutex.h"
+#include "spdlog/sinks/base_sink.h"
+#include "spdlog/spdlog.h"
+
+#include <mutex>
+#include <string>
+
+namespace spdlog {
+namespace sinks {
+/*
+ * Trivial file sink with single file as target
+ */
+template<typename Mutex>
+class basic_file_sink SPDLOG_FINAL : public base_sink<Mutex>
+{
+public:
+ explicit basic_file_sink(const filename_t &filename, bool truncate = false)
+ {
+ file_helper_.open(filename, truncate);
+ }
+
+protected:
+ void sink_it_(const details::log_msg &msg) override
+ {
+ fmt::memory_buffer formatted;
+ sink::formatter_->format(msg, formatted);
+ file_helper_.write(formatted);
+ }
+
+ void flush_() override
+ {
+ file_helper_.flush();
+ }
+
+private:
+ details::file_helper file_helper_;
+};
+
+using basic_file_sink_mt = basic_file_sink<std::mutex>;
+using basic_file_sink_st = basic_file_sink<details::null_mutex>;
+
+} // namespace sinks
+
+//
+// factory functions
+//
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> basic_logger_mt(const std::string &logger_name, const filename_t &filename, bool truncate = false)
+{
+ return Factory::template create<sinks::basic_file_sink_mt>(logger_name, filename, truncate);
+}
+
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> basic_logger_st(const std::string &logger_name, const filename_t &filename, bool truncate = false)
+{
+ return Factory::template create<sinks::basic_file_sink_st>(logger_name, filename, truncate);
+}
+
+} // namespace spdlog
diff --git a/src/include/spdlog/sinks/daily_file_sink.h b/src/include/spdlog/sinks/daily_file_sink.h
new file mode 100644
index 0000000000000000000000000000000000000000..940d55d491840c1047edf08b3c5f1ec8122fdc3b
--- /dev/null
+++ b/src/include/spdlog/sinks/daily_file_sink.h
@@ -0,0 +1,132 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+#include "spdlog/details/file_helper.h"
+#include "spdlog/details/null_mutex.h"
+#include "spdlog/fmt/fmt.h"
+#include "spdlog/sinks/base_sink.h"
+#include "spdlog/spdlog.h"
+
+#include <chrono>
+#include <cstdio>
+#include <ctime>
+#include <mutex>
+#include <string>
+
+namespace spdlog {
+namespace sinks {
+
+/*
+ * Generator of daily log file names in format basename.YYYY-MM-DD.ext
+ */
+struct daily_filename_calculator
+{
+ // Create filename for the form basename.YYYY-MM-DD
+ static filename_t calc_filename(const filename_t &filename, const tm &now_tm)
+ {
+ filename_t basename, ext;
+ std::tie(basename, ext) = details::file_helper::split_by_extenstion(filename);
+ std::conditional<std::is_same<filename_t::value_type, char>::value, fmt::memory_buffer, fmt::wmemory_buffer>::type w;
+ fmt::format_to(
+ w, SPDLOG_FILENAME_T("{}_{:04d}-{:02d}-{:02d}{}"), basename, now_tm.tm_year + 1900, now_tm.tm_mon + 1, now_tm.tm_mday, ext);
+ return fmt::to_string(w);
+ }
+};
+
+/*
+ * Rotating file sink based on date. rotates at midnight
+ */
+template<typename Mutex, typename FileNameCalc = daily_filename_calculator>
+class daily_file_sink SPDLOG_FINAL : public base_sink<Mutex>
+{
+public:
+ // create daily file sink which rotates on given time
+ daily_file_sink(filename_t base_filename, int rotation_hour, int rotation_minute, bool truncate = false)
+ : base_filename_(std::move(base_filename))
+ , rotation_h_(rotation_hour)
+ , rotation_m_(rotation_minute)
+ , truncate_(truncate)
+ {
+ if (rotation_hour < 0 || rotation_hour > 23 || rotation_minute < 0 || rotation_minute > 59)
+ {
+ throw spdlog_ex("daily_file_sink: Invalid rotation time in ctor");
+ }
+ auto now = log_clock::now();
+ file_helper_.open(FileNameCalc::calc_filename(base_filename_, now_tm(now)), truncate_);
+ rotation_tp_ = next_rotation_tp_();
+ }
+
+protected:
+ void sink_it_(const details::log_msg &msg) override
+ {
+
+ if (msg.time >= rotation_tp_)
+ {
+ file_helper_.open(FileNameCalc::calc_filename(base_filename_, now_tm(msg.time)), truncate_);
+ rotation_tp_ = next_rotation_tp_();
+ }
+ fmt::memory_buffer formatted;
+ sink::formatter_->format(msg, formatted);
+ file_helper_.write(formatted);
+ }
+
+ void flush_() override
+ {
+ file_helper_.flush();
+ }
+
+private:
+ tm now_tm(log_clock::time_point tp)
+ {
+ time_t tnow = log_clock::to_time_t(tp);
+ return spdlog::details::os::localtime(tnow);
+ }
+
+ log_clock::time_point next_rotation_tp_()
+ {
+ auto now = log_clock::now();
+ tm date = now_tm(now);
+ date.tm_hour = rotation_h_;
+ date.tm_min = rotation_m_;
+ date.tm_sec = 0;
+ auto rotation_time = log_clock::from_time_t(std::mktime(&date));
+ if (rotation_time > now)
+ {
+ return rotation_time;
+ }
+ return {rotation_time + std::chrono::hours(24)};
+ }
+
+ filename_t base_filename_;
+ int rotation_h_;
+ int rotation_m_;
+ log_clock::time_point rotation_tp_;
+ details::file_helper file_helper_;
+ bool truncate_;
+};
+
+using daily_file_sink_mt = daily_file_sink<std::mutex>;
+using daily_file_sink_st = daily_file_sink<details::null_mutex>;
+
+} // namespace sinks
+
+//
+// factory functions
+//
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> daily_logger_mt(
+ const std::string &logger_name, const filename_t &filename, int hour = 0, int minute = 0, bool truncate = false)
+{
+ return Factory::template create<sinks::daily_file_sink_mt>(logger_name, filename, hour, minute, truncate);
+}
+
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> daily_logger_st(
+ const std::string &logger_name, const filename_t &filename, int hour = 0, int minute = 0, bool truncate = false)
+{
+ return Factory::template create<sinks::daily_file_sink_st>(logger_name, filename, hour, minute, truncate);
+}
+} // namespace spdlog
diff --git a/src/include/spdlog/sinks/dist_sink.h b/src/include/spdlog/sinks/dist_sink.h
new file mode 100644
index 0000000000000000000000000000000000000000..8d2f6f9e3bf15f478fdf038b4cdfbf019343db22
--- /dev/null
+++ b/src/include/spdlog/sinks/dist_sink.h
@@ -0,0 +1,68 @@
+//
+// Copyright (c) 2015 David Schury, Gabi Melman
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "base_sink.h"
+#include "spdlog/details/log_msg.h"
+#include "spdlog/details/null_mutex.h"
+
+#include <algorithm>
+#include <memory>
+#include <mutex>
+#include <vector>
+
+// Distribution sink (mux). Stores a vector of sinks which get called when log
+// is called
+
+namespace spdlog {
+namespace sinks {
+
+template<typename Mutex>
+class dist_sink : public base_sink<Mutex>
+{
+public:
+ dist_sink() = default;
+ dist_sink(const dist_sink &) = delete;
+ dist_sink &operator=(const dist_sink &) = delete;
+
+ void add_sink(std::shared_ptr<sink> sink)
+ {
+ std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
+ sinks_.push_back(sink);
+ }
+
+ void remove_sink(std::shared_ptr<sink> sink)
+ {
+ std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
+ sinks_.erase(std::remove(sinks_.begin(), sinks_.end(), sink), sinks_.end());
+ }
+
+protected:
+ void sink_it_(const details::log_msg &msg) override
+ {
+
+ for (auto &sink : sinks_)
+ {
+ if (sink->should_log(msg.level))
+ {
+ sink->log(msg);
+ }
+ }
+ }
+
+ void flush_() override
+ {
+ for (auto &sink : sinks_)
+ sink->flush();
+ }
+ std::vector<std::shared_ptr<sink>> sinks_;
+};
+
+using dist_sink_mt = dist_sink<std::mutex>;
+using dist_sink_st = dist_sink<details::null_mutex>;
+
+} // namespace sinks
+} // namespace spdlog
diff --git a/src/include/spdlog/sinks/msvc_sink.h b/src/include/spdlog/sinks/msvc_sink.h
new file mode 100644
index 0000000000000000000000000000000000000000..a02849607685e07ac56db6ff57ee5db729728d9a
--- /dev/null
+++ b/src/include/spdlog/sinks/msvc_sink.h
@@ -0,0 +1,50 @@
+//
+// Copyright(c) 2016 Alexander Dalshov.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#if defined(_WIN32)
+
+#include "spdlog/details/null_mutex.h"
+#include "spdlog/sinks/base_sink.h"
+
+#include <winbase.h>
+
+#include <mutex>
+#include <string>
+
+namespace spdlog {
+namespace sinks {
+/*
+ * MSVC sink (logging using OutputDebugStringA)
+ */
+template<typename Mutex>
+class msvc_sink : public base_sink<Mutex>
+{
+public:
+ explicit msvc_sink() {}
+
+protected:
+ void sink_it_(const details::log_msg &msg) override
+ {
+
+ fmt::memory_buffer formatted;
+ sink::formatter_->format(msg, formatted);
+ OutputDebugStringA(fmt::to_string(formatted).c_str());
+ }
+
+ void flush_() override {}
+};
+
+using msvc_sink_mt = msvc_sink<std::mutex>;
+using msvc_sink_st = msvc_sink<details::null_mutex>;
+
+using windebug_sink_mt = msvc_sink_mt;
+using windebug_sink_st = msvc_sink_st;
+
+} // namespace sinks
+} // namespace spdlog
+
+#endif
diff --git a/src/include/spdlog/sinks/null_sink.h b/src/include/spdlog/sinks/null_sink.h
new file mode 100644
index 0000000000000000000000000000000000000000..73b8c2b7afb8254e10c02fc029803d559b89d5c3
--- /dev/null
+++ b/src/include/spdlog/sinks/null_sink.h
@@ -0,0 +1,28 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "spdlog/details/null_mutex.h"
+#include "spdlog/sinks/base_sink.h"
+
+#include <mutex>
+
+namespace spdlog {
+namespace sinks {
+
+template<typename Mutex>
+class null_sink : public base_sink<Mutex>
+{
+protected:
+ void sink_it_(const details::log_msg &) override {}
+ void flush_() override {}
+};
+
+using null_sink_mt = null_sink<std::mutex>;
+using null_sink_st = null_sink<details::null_mutex>;
+
+} // namespace sinks
+} // namespace spdlog
diff --git a/src/include/spdlog/sinks/ostream_sink.h b/src/include/spdlog/sinks/ostream_sink.h
new file mode 100644
index 0000000000000000000000000000000000000000..5f31993c67023cf239cb35d4413e359c570cb3a1
--- /dev/null
+++ b/src/include/spdlog/sinks/ostream_sink.h
@@ -0,0 +1,51 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "spdlog/details/null_mutex.h"
+#include "spdlog/sinks/base_sink.h"
+
+#include <mutex>
+#include <ostream>
+
+namespace spdlog {
+namespace sinks {
+template<typename Mutex>
+class ostream_sink SPDLOG_FINAL : public base_sink<Mutex>
+{
+public:
+ explicit ostream_sink(std::ostream &os, bool force_flush = false)
+ : ostream_(os)
+ , force_flush_(force_flush)
+ {
+ }
+ ostream_sink(const ostream_sink &) = delete;
+ ostream_sink &operator=(const ostream_sink &) = delete;
+
+protected:
+ void sink_it_(const details::log_msg &msg) override
+ {
+ fmt::memory_buffer formatted;
+ sink::formatter_->format(msg, formatted);
+ ostream_.write(formatted.data(), formatted.size());
+ if (force_flush_)
+ ostream_.flush();
+ }
+
+ void flush_() override
+ {
+ ostream_.flush();
+ }
+
+ std::ostream &ostream_;
+ bool force_flush_;
+};
+
+using ostream_sink_mt = ostream_sink<std::mutex>;
+using ostream_sink_st = ostream_sink<details::null_mutex>;
+
+} // namespace sinks
+} // namespace spdlog
diff --git a/src/include/spdlog/sinks/rotating_file_sink.h b/src/include/spdlog/sinks/rotating_file_sink.h
new file mode 100644
index 0000000000000000000000000000000000000000..7ed2385a50108f3eb23e0a2017e98fe28e16860d
--- /dev/null
+++ b/src/include/spdlog/sinks/rotating_file_sink.h
@@ -0,0 +1,144 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+#include "spdlog/details/file_helper.h"
+#include "spdlog/details/null_mutex.h"
+#include "spdlog/fmt/fmt.h"
+#include "spdlog/sinks/base_sink.h"
+#include "spdlog/spdlog.h"
+
+#include <cerrno>
+#include <chrono>
+#include <ctime>
+#include <mutex>
+#include <string>
+#include <tuple>
+
+namespace spdlog {
+namespace sinks {
+
+//
+// Rotating file sink based on size
+//
+template<typename Mutex>
+class rotating_file_sink SPDLOG_FINAL : public base_sink<Mutex>
+{
+public:
+ rotating_file_sink(filename_t base_filename, std::size_t max_size, std::size_t max_files)
+ : base_filename_(std::move(base_filename))
+ , max_size_(max_size)
+ , max_files_(max_files)
+ {
+ file_helper_.open(calc_filename(base_filename_, 0));
+ current_size_ = file_helper_.size(); // expensive. called only once
+ }
+
+ // calc filename according to index and file extension if exists.
+ // e.g. calc_filename("logs/mylog.txt, 3) => "logs/mylog.3.txt".
+ static filename_t calc_filename(const filename_t &filename, std::size_t index)
+ {
+ typename std::conditional<std::is_same<filename_t::value_type, char>::value, fmt::memory_buffer, fmt::wmemory_buffer>::type w;
+ if (index != 0u)
+ {
+ filename_t basename, ext;
+ std::tie(basename, ext) = details::file_helper::split_by_extenstion(filename);
+ fmt::format_to(w, SPDLOG_FILENAME_T("{}.{}{}"), basename, index, ext);
+ }
+ else
+ {
+ fmt::format_to(w, SPDLOG_FILENAME_T("{}"), filename);
+ }
+ return fmt::to_string(w);
+ }
+
+protected:
+ void sink_it_(const details::log_msg &msg) override
+ {
+ fmt::memory_buffer formatted;
+ sink::formatter_->format(msg, formatted);
+ current_size_ += formatted.size();
+ if (current_size_ > max_size_)
+ {
+ rotate_();
+ current_size_ = formatted.size();
+ }
+ file_helper_.write(formatted);
+ }
+
+ void flush_() override
+ {
+ file_helper_.flush();
+ }
+
+private:
+ // Rotate files:
+ // log.txt -> log.1.txt
+ // log.1.txt -> log.2.txt
+ // log.2.txt -> log.3.txt
+ // log.3.txt -> delete
+ void rotate_()
+ {
+ using details::os::filename_to_str;
+ file_helper_.close();
+ for (auto i = max_files_; i > 0; --i)
+ {
+ filename_t src = calc_filename(base_filename_, i - 1);
+ filename_t target = calc_filename(base_filename_, i);
+
+ if (details::file_helper::file_exists(target))
+ {
+ if (details::os::remove(target) != 0)
+ {
+ throw spdlog_ex("rotating_file_sink: failed removing " + filename_to_str(target), errno);
+ }
+ }
+ if (details::file_helper::file_exists(src) && details::os::rename(src, target) != 0)
+ {
+ // if failed try again after small delay.
+ // this is a workaround to a windows issue, where very high rotation
+ // rates sometimes fail (because of antivirus?).
+ details::os::sleep_for_millis(20);
+ details::os::remove(target);
+ if (details::os::rename(src, target) != 0)
+ {
+ throw spdlog_ex(
+ "rotating_file_sink: failed renaming " + filename_to_str(src) + " to " + filename_to_str(target), errno);
+ }
+ }
+ }
+ file_helper_.reopen(true);
+ }
+
+ filename_t base_filename_;
+ std::size_t max_size_;
+ std::size_t max_files_;
+ std::size_t current_size_;
+ details::file_helper file_helper_;
+};
+
+using rotating_file_sink_mt = rotating_file_sink<std::mutex>;
+using rotating_file_sink_st = rotating_file_sink<details::null_mutex>;
+
+} // namespace sinks
+
+//
+// factory functions
+//
+
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> rotating_logger_mt(
+ const std::string &logger_name, const filename_t &filename, size_t max_file_size, size_t max_files)
+{
+ return Factory::template create<sinks::rotating_file_sink_mt>(logger_name, filename, max_file_size, max_files);
+}
+
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> rotating_logger_st(
+ const std::string &logger_name, const filename_t &filename, size_t max_file_size, size_t max_files)
+{
+ return Factory::template create<sinks::rotating_file_sink_st>(logger_name, filename, max_file_size, max_files);
+}
+} // namespace spdlog
diff --git a/src/include/spdlog/sinks/sink.h b/src/include/spdlog/sinks/sink.h
new file mode 100644
index 0000000000000000000000000000000000000000..288d54389eaa2cde4d937d1913653c8c73e38d48
--- /dev/null
+++ b/src/include/spdlog/sinks/sink.h
@@ -0,0 +1,57 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "spdlog/details/log_msg.h"
+#include "spdlog/details/pattern_formatter.h"
+#include "spdlog/formatter.h"
+
+namespace spdlog {
+namespace sinks {
+class sink
+{
+public:
+ sink()
+ : level_(level::trace)
+ , formatter_(new pattern_formatter("%+"))
+ {
+ }
+
+ sink(std::unique_ptr<spdlog::pattern_formatter> formatter)
+ : level_(level::trace)
+ , formatter_(std::move(formatter)){};
+
+ virtual ~sink() = default;
+ virtual void log(const details::log_msg &msg) = 0;
+ virtual void flush() = 0;
+ virtual void set_pattern(const std::string &pattern) = 0;
+ virtual void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) = 0;
+
+ bool should_log(level::level_enum msg_level) const
+ {
+ return msg_level >= level_.load(std::memory_order_relaxed);
+ }
+
+ void set_level(level::level_enum log_level)
+ {
+ level_.store(log_level);
+ }
+
+ level::level_enum level() const
+ {
+ return static_cast<spdlog::level::level_enum>(level_.load(std::memory_order_relaxed));
+ }
+
+protected:
+ // sink log level - default is all
+ level_t level_;
+
+ // sink formatter - default is full format
+ std::unique_ptr<spdlog::formatter> formatter_;
+};
+
+} // namespace sinks
+} // namespace spdlog
diff --git a/src/include/spdlog/sinks/stdout_color_sinks.h b/src/include/spdlog/sinks/stdout_color_sinks.h
new file mode 100644
index 0000000000000000000000000000000000000000..761e32a4b50d6c4cfe2d459393717b95896bf9b8
--- /dev/null
+++ b/src/include/spdlog/sinks/stdout_color_sinks.h
@@ -0,0 +1,53 @@
+//
+// Copyright(c) 2018 spdlog
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "spdlog/spdlog.h"
+#ifdef _WIN32
+#include "spdlog/sinks/wincolor_sink.h"
+#else
+#include "spdlog/sinks/ansicolor_sink.h"
+#endif
+
+namespace spdlog {
+namespace sinks {
+#ifdef _WIN32
+using stdout_color_sink_mt = wincolor_stdout_sink_mt;
+using stdout_color_sink_st = wincolor_stdout_sink_st;
+using stderr_color_sink_mt = wincolor_stderr_sink_mt;
+using stderr_color_sink_st = wincolor_stderr_sink_st;
+#else
+using stdout_color_sink_mt = ansicolor_stdout_sink_mt;
+using stdout_color_sink_st = ansicolor_stdout_sink_st;
+using stderr_color_sink_mt = ansicolor_stderr_sink_mt;
+using stderr_color_sink_st = ansicolor_stderr_sink_st;
+#endif
+} // namespace sinks
+
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> stdout_color_mt(const std::string &logger_name)
+{
+ return Factory::template create<sinks::stdout_color_sink_mt>(logger_name);
+}
+
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> stdout_color_st(const std::string &logger_name)
+{
+ return Factory::template create<sinks::stdout_color_sink_st>(logger_name);
+}
+
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> stderr_color_mt(const std::string &logger_name)
+{
+ return Factory::template create<sinks::stderr_color_sink_mt>(logger_name);
+}
+
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> stderr_color_st(const std::string &logger_name)
+{
+ return Factory::template create<sinks::stderr_color_sink_mt>(logger_name);
+}
+} // namespace spdlog
diff --git a/src/include/spdlog/sinks/stdout_sinks.h b/src/include/spdlog/sinks/stdout_sinks.h
new file mode 100644
index 0000000000000000000000000000000000000000..64c0ab70ab31d96c3182c74f863554c617430740
--- /dev/null
+++ b/src/include/spdlog/sinks/stdout_sinks.h
@@ -0,0 +1,100 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "spdlog/details/console_globals.h"
+#include "spdlog/details/null_mutex.h"
+#include "spdlog/spdlog.h"
+
+#include <cstdio>
+#include <memory>
+#include <mutex>
+#include <spdlog/details/console_globals.h>
+
+namespace spdlog {
+
+namespace sinks {
+
+template<typename TargetStream, typename ConsoleMutex>
+class stdout_sink : public sink
+{
+public:
+ using mutex_t = typename ConsoleMutex::mutex_t;
+ stdout_sink()
+ : mutex_(ConsoleMutex::mutex())
+ , file_(TargetStream::stream())
+ {
+ }
+ ~stdout_sink() = default;
+
+ stdout_sink(const stdout_sink &other) = delete;
+ stdout_sink &operator=(const stdout_sink &other) = delete;
+
+ void log(const details::log_msg &msg) override
+ {
+ std::lock_guard<mutex_t> lock(mutex_);
+ fmt::memory_buffer formatted;
+ formatter_->format(msg, formatted);
+ fwrite(formatted.data(), sizeof(char), formatted.size(), file_);
+ fflush(TargetStream::stream());
+ }
+
+ void flush() override
+ {
+ std::lock_guard<mutex_t> lock(mutex_);
+ fflush(file_);
+ }
+
+ void set_pattern(const std::string &pattern) override SPDLOG_FINAL
+ {
+ std::lock_guard<mutex_t> lock(mutex_);
+ formatter_ = std::unique_ptr<spdlog::formatter>(new pattern_formatter(pattern));
+ }
+
+ void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) override SPDLOG_FINAL
+ {
+ std::lock_guard<mutex_t> lock(mutex_);
+ formatter_ = std::move(sink_formatter);
+ }
+
+private:
+ mutex_t &mutex_;
+ FILE *file_;
+};
+
+using stdout_sink_mt = stdout_sink<details::console_stdout, details::console_mutex>;
+using stdout_sink_st = stdout_sink<details::console_stdout, details::console_nullmutex>;
+
+using stderr_sink_mt = stdout_sink<details::console_stderr, details::console_mutex>;
+using stderr_sink_st = stdout_sink<details::console_stderr, details::console_nullmutex>;
+
+} // namespace sinks
+
+// factory methods
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> stdout_logger_mt(const std::string &logger_name)
+{
+ return Factory::template create<sinks::stdout_sink_mt>(logger_name);
+}
+
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> stdout_logger_st(const std::string &logger_name)
+{
+ return Factory::template create<sinks::stdout_sink_st>(logger_name);
+}
+
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> stderr_logger_mt(const std::string &logger_name)
+{
+ return Factory::template create<sinks::stderr_sink_mt>(logger_name);
+}
+
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> stderr_logger_st(const std::string &logger_name)
+{
+ return Factory::template create<sinks::stderr_sink_st>(logger_name);
+}
+} // namespace spdlog
diff --git a/src/include/spdlog/sinks/syslog_sink.h b/src/include/spdlog/sinks/syslog_sink.h
new file mode 100644
index 0000000000000000000000000000000000000000..e171bf9acb32f938eb208c99c547f0da1188f144
--- /dev/null
+++ b/src/include/spdlog/sinks/syslog_sink.h
@@ -0,0 +1,91 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "spdlog/sinks/base_sink.h"
+#include "spdlog/spdlog.h"
+
+#include <array>
+#include <string>
+#include <syslog.h>
+
+namespace spdlog {
+namespace sinks {
+/**
+ * Sink that write to syslog using the `syscall()` library call.
+ *
+ * Locking is not needed, as `syslog()` itself is thread-safe.
+ */
+template<typename Mutex>
+class syslog_sink : public base_sink<Mutex>
+{
+public:
+ //
+ syslog_sink(const std::string &ident = "", int syslog_option = 0, int syslog_facility = LOG_USER)
+ : ident_(ident)
+ {
+ priorities_[static_cast<size_t>(level::trace)] = LOG_DEBUG;
+ priorities_[static_cast<size_t>(level::debug)] = LOG_DEBUG;
+ priorities_[static_cast<size_t>(level::info)] = LOG_INFO;
+ priorities_[static_cast<size_t>(level::warn)] = LOG_WARNING;
+ priorities_[static_cast<size_t>(level::err)] = LOG_ERR;
+ priorities_[static_cast<size_t>(level::critical)] = LOG_CRIT;
+ priorities_[static_cast<size_t>(level::off)] = LOG_INFO;
+
+ // set ident to be program name if empty
+ ::openlog(ident_.empty() ? nullptr : ident_.c_str(), syslog_option, syslog_facility);
+ }
+
+ ~syslog_sink() override
+ {
+ ::closelog();
+ }
+
+ syslog_sink(const syslog_sink &) = delete;
+ syslog_sink &operator=(const syslog_sink &) = delete;
+
+protected:
+ void sink_it_(const details::log_msg &msg) override
+ {
+ ::syslog(syslog_prio_from_level(msg), "%s", fmt::to_string(msg.raw).c_str());
+ }
+
+ void flush_() override {}
+
+private:
+ std::array<int, 7> priorities_;
+ // must store the ident because the man says openlog might use the pointer as
+ // is and not a string copy
+ const std::string ident_;
+
+ //
+ // Simply maps spdlog's log level to syslog priority level.
+ //
+ int syslog_prio_from_level(const details::log_msg &msg) const
+ {
+ return priorities_[static_cast<size_t>(msg.level)];
+ }
+};
+
+using syslog_sink_mt = syslog_sink<std::mutex>;
+using syslog_sink_st = syslog_sink<details::null_mutex>;
+} // namespace sinks
+
+// Create and register a syslog logger
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> syslog_logger_mt(
+ const std::string &logger_name, const std::string &syslog_ident = "", int syslog_option = 0, int syslog_facility = (1 << 3))
+{
+ return Factory::template create<sinks::syslog_sink_mt>(logger_name, syslog_ident, syslog_option, syslog_facility);
+}
+
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> syslog_logger_st(
+ const std::string &logger_name, const std::string &syslog_ident = "", int syslog_option = 0, int syslog_facility = (1 << 3))
+{
+ return Factory::template create<sinks::syslog_sink_st>(logger_name, syslog_ident, syslog_option, syslog_facility);
+}
+} // namespace spdlog
diff --git a/src/include/spdlog/sinks/wincolor_sink.h b/src/include/spdlog/sinks/wincolor_sink.h
new file mode 100644
index 0000000000000000000000000000000000000000..8c63e7fcc5930c57db2dfad656798d8d315402f8
--- /dev/null
+++ b/src/include/spdlog/sinks/wincolor_sink.h
@@ -0,0 +1,139 @@
+//
+// Copyright(c) 2016 spdlog
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include "spdlog/common.h"
+#include "spdlog/details/console_globals.h"
+#include "spdlog/details/null_mutex.h"
+#include "spdlog/sinks/sink.h"
+
+#include <memory>
+#include <mutex>
+#include <string>
+#include <unordered_map>
+#include <wincon.h>
+
+namespace spdlog {
+namespace sinks {
+/*
+ * Windows color console sink. Uses WriteConsoleA to write to the console with
+ * colors
+ */
+template<typename OutHandle, typename ConsoleMutex>
+class wincolor_sink : public sink
+{
+public:
+ const WORD BOLD = FOREGROUND_INTENSITY;
+ const WORD RED = FOREGROUND_RED;
+ const WORD GREEN = FOREGROUND_GREEN;
+ const WORD CYAN = FOREGROUND_GREEN | FOREGROUND_BLUE;
+ const WORD WHITE = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE;
+ const WORD YELLOW = FOREGROUND_RED | FOREGROUND_GREEN;
+
+ wincolor_sink()
+ : out_handle_(OutHandle::handle())
+ , mutex_(ConsoleMutex::mutex())
+ {
+ colors_[level::trace] = WHITE;
+ colors_[level::debug] = CYAN;
+ colors_[level::info] = GREEN;
+ colors_[level::warn] = YELLOW | BOLD;
+ colors_[level::err] = RED | BOLD; // red bold
+ colors_[level::critical] = BACKGROUND_RED | WHITE | BOLD; // white bold on red background
+ colors_[level::off] = 0;
+ }
+
+ ~wincolor_sink() override
+ {
+ this->flush();
+ }
+
+ wincolor_sink(const wincolor_sink &other) = delete;
+ wincolor_sink &operator=(const wincolor_sink &other) = delete;
+
+ // change the color for the given level
+ void set_color(level::level_enum level, WORD color)
+ {
+ std::lock_guard<mutex_t> lock(mutex_);
+ colors_[level] = color;
+ }
+
+ void log(const details::log_msg &msg) SPDLOG_FINAL override
+ {
+ std::lock_guard<mutex_t> lock(mutex_);
+ fmt::memory_buffer formatted;
+ formatter_->format(msg, formatted);
+ if (msg.color_range_end > msg.color_range_start)
+ {
+ // before color range
+ print_range_(formatted, 0, msg.color_range_start);
+
+ // in color range
+ auto orig_attribs = set_console_attribs(colors_[msg.level]);
+ print_range_(formatted, msg.color_range_start, msg.color_range_end);
+ ::SetConsoleTextAttribute(out_handle_,
+ orig_attribs); // reset to orig colors
+ // after color range
+ print_range_(formatted, msg.color_range_end, formatted.size());
+ }
+ else // print without colors if color range is invalid
+ {
+ print_range_(formatted, 0, formatted.size());
+ }
+ }
+
+ void flush() SPDLOG_FINAL override
+ {
+ // windows console always flushed?
+ }
+
+ void set_pattern(const std::string &pattern) override SPDLOG_FINAL
+ {
+ std::lock_guard<mutex_t> lock(mutex_);
+ formatter_ = std::unique_ptr<spdlog::formatter>(new pattern_formatter(pattern));
+ }
+
+ void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) override SPDLOG_FINAL
+ {
+ std::lock_guard<mutex_t> lock(mutex_);
+ formatter_ = std::move(sink_formatter);
+ }
+
+private:
+ using mutex_t = typename ConsoleMutex::mutex_t;
+ // set color and return the orig console attributes (for resetting later)
+ WORD set_console_attribs(WORD attribs)
+ {
+ CONSOLE_SCREEN_BUFFER_INFO orig_buffer_info;
+ ::GetConsoleScreenBufferInfo(out_handle_, &orig_buffer_info);
+ WORD back_color = orig_buffer_info.wAttributes;
+ // retrieve the current background color
+ back_color &= static_cast<WORD>(~(FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE | FOREGROUND_INTENSITY));
+ // keep the background color unchanged
+ ::SetConsoleTextAttribute(out_handle_, attribs | back_color);
+ return orig_buffer_info.wAttributes; // return orig attribs
+ }
+
+ // print a range of formatted message to console
+ void print_range_(const fmt::memory_buffer &formatted, size_t start, size_t end)
+ {
+ auto size = static_cast<DWORD>(end - start);
+ ::WriteConsoleA(out_handle_, formatted.data() + start, size, nullptr, nullptr);
+ }
+
+ HANDLE out_handle_;
+ mutex_t &mutex_;
+ std::unordered_map<level::level_enum, WORD, level::level_hasher> colors_;
+};
+
+using wincolor_stdout_sink_mt = wincolor_sink<details::console_stdout, details::console_mutex>;
+using wincolor_stdout_sink_st = wincolor_sink<details::console_stdout, details::console_nullmutex>;
+
+using wincolor_stderr_sink_mt = wincolor_sink<details::console_stderr, details::console_mutex>;
+using wincolor_stderr_sink_st = wincolor_sink<details::console_stderr, details::console_nullmutex>;
+
+} // namespace sinks
+} // namespace spdlog
diff --git a/src/include/spdlog/spdlog.h b/src/include/spdlog/spdlog.h
new file mode 100644
index 0000000000000000000000000000000000000000..2963a2a091f632921e54a32f21e9f9fc847ca201
--- /dev/null
+++ b/src/include/spdlog/spdlog.h
@@ -0,0 +1,161 @@
+//
+// Copyright(c) 2015-2018 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+// spdlog main header file.
+// see example.cpp for usage example
+
+#pragma once
+
+#include "spdlog/common.h"
+#include "spdlog/details/registry.h"
+#include "spdlog/logger.h"
+#include "spdlog/version.h"
+
+#include <chrono>
+#include <functional>
+#include <memory>
+#include <string>
+
+namespace spdlog {
+
+// Default logger factory- creates synchronous loggers
+struct synchronous_factory
+{
+ template<typename Sink, typename... SinkArgs>
+
+ static std::shared_ptr<spdlog::logger> create(std::string logger_name, SinkArgs &&... args)
+ {
+ auto sink = std::make_shared<Sink>(std::forward<SinkArgs>(args)...);
+ auto new_logger = std::make_shared<logger>(std::move(logger_name), std::move(sink));
+ details::registry::instance().register_and_init(new_logger);
+ return new_logger;
+ }
+};
+
+using default_factory = synchronous_factory;
+
+// Create and register a logger with a templated sink type
+// The logger's level, formatter and flush level will be set according the
+// global settings.
+// Example:
+// spdlog::create<daily_file_sink_st>("logger_name", "dailylog_filename", 11, 59);
+template<typename Sink, typename... SinkArgs>
+inline std::shared_ptr<spdlog::logger> create(std::string logger_name, SinkArgs &&... sink_args)
+{
+ return default_factory::create<Sink>(std::move(logger_name), std::forward<SinkArgs>(sink_args)...);
+}
+
+// Return an existing logger or nullptr if a logger with such name doesn't
+// exist.
+// example: spdlog::get("my_logger")->info("hello {}", "world");
+inline std::shared_ptr<logger> get(const std::string &name)
+{
+ return details::registry::instance().get(name);
+}
+
+// Set global formatter. Each sink in each logger will get a clone of this object
+inline void set_formatter(std::unique_ptr<spdlog::formatter> formatter)
+{
+ details::registry::instance().set_formatter(std::move(formatter));
+}
+
+// Set global format string.
+// example: spdlog::set_pattern("%Y-%m-%d %H:%M:%S.%e %l : %v");
+inline void set_pattern(std::string pattern, pattern_time_type time_type = pattern_time_type::local)
+{
+ set_formatter(std::unique_ptr<spdlog::formatter>(new pattern_formatter(pattern, time_type)));
+}
+
+// Set global logging level
+inline void set_level(level::level_enum log_level)
+{
+ details::registry::instance().set_level(log_level);
+}
+
+// Set global flush level
+inline void flush_on(level::level_enum log_level)
+{
+ details::registry::instance().flush_on(log_level);
+}
+
+// Start/Restart a periodic flusher thread
+// Warning: Use only if all your loggers are thread safe!
+inline void flush_every(std::chrono::seconds interval)
+{
+ details::registry::instance().flush_every(interval);
+}
+
+// Set global error handler
+inline void set_error_handler(log_err_handler handler)
+{
+ details::registry::instance().set_error_handler(std::move(handler));
+}
+
+// Register the given logger with the given name
+inline void register_logger(std::shared_ptr<logger> logger)
+{
+ details::registry::instance().register_logger(std::move(logger));
+}
+
+// Apply a user defined function on all registered loggers
+// Example:
+// spdlog::apply_all([&](std::shared_ptr<spdlog::logger> l) {l->flush();});
+inline void apply_all(std::function<void(std::shared_ptr<logger>)> fun)
+{
+ details::registry::instance().apply_all(std::move(fun));
+}
+
+// Drop the reference to the given logger
+inline void drop(const std::string &name)
+{
+ details::registry::instance().drop(name);
+}
+
+// Drop all references from the registry
+inline void drop_all()
+{
+ details::registry::instance().drop_all();
+}
+
+// stop any running threads started by spdlog and clean registry loggers
+inline void shutdown()
+{
+ details::registry::instance().shutdown();
+}
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// Trace & Debug can be switched on/off at compile time for zero cost debug
+// statements.
+// Uncomment SPDLOG_DEBUG_ON/SPDLOG_TRACE_ON in tweakme.h to enable.
+// SPDLOG_TRACE(..) will also print current file and line.
+//
+// Example:
+// spdlog::set_level(spdlog::level::trace);
+// SPDLOG_TRACE(my_logger, "some trace message");
+// SPDLOG_TRACE(my_logger, "another trace message {} {}", 1, 2);
+// SPDLOG_DEBUG(my_logger, "some debug message {} {}", 3, 4);
+///////////////////////////////////////////////////////////////////////////////
+
+#ifdef SPDLOG_TRACE_ON
+#define SPDLOG_STR_H(x) #x
+#define SPDLOG_STR_HELPER(x) SPDLOG_STR_H(x)
+#ifdef _MSC_VER
+#define SPDLOG_TRACE(logger, ...) logger->trace("[ " __FILE__ "(" SPDLOG_STR_HELPER(__LINE__) ") ] " __VA_ARGS__)
+#else
+#define SPDLOG_TRACE(logger, ...) \
+ logger->trace("[ " __FILE__ ":" SPDLOG_STR_HELPER(__LINE__) " ]" \
+ " " __VA_ARGS__)
+#endif
+#else
+#define SPDLOG_TRACE(logger, ...) (void)0
+#endif
+
+#ifdef SPDLOG_DEBUG_ON
+#define SPDLOG_DEBUG(logger, ...) logger->debug(__VA_ARGS__)
+#else
+#define SPDLOG_DEBUG(logger, ...) (void)0
+#endif
+
+} // namespace spdlog
diff --git a/src/include/spdlog/tweakme.h b/src/include/spdlog/tweakme.h
new file mode 100644
index 0000000000000000000000000000000000000000..53256450c6d10265542db37dbfd33b0fd719de2f
--- /dev/null
+++ b/src/include/spdlog/tweakme.h
@@ -0,0 +1,132 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// Edit this file to squeeze more performance, and to customize supported
+// features
+//
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Under Linux, the much faster CLOCK_REALTIME_COARSE clock can be used.
+// This clock is less accurate - can be off by dozens of millis - depending on
+// the kernel HZ.
+// Uncomment to use it instead of the regular clock.
+//
+// #define SPDLOG_CLOCK_COARSE
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment if date/time logging is not needed and never appear in the log
+// pattern.
+// This will prevent spdlog from querying the clock on each log call.
+//
+// WARNING: If the log pattern contains any date/time while this flag is on, the
+// result is undefined.
+// You must set new pattern(spdlog::set_pattern(..") without any
+// date/time in it
+//
+// #define SPDLOG_NO_DATETIME
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment if thread id logging is not needed (i.e. no %t in the log pattern).
+// This will prevent spdlog from querying the thread id on each log call.
+//
+// WARNING: If the log pattern contains thread id (i.e, %t) while this flag is
+// on, the result is undefined.
+//
+// #define SPDLOG_NO_THREAD_ID
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to prevent spdlog from caching thread ids in thread local storage.
+// By default spdlog saves thread ids in tls to gain a few micros for each call.
+//
+// WARNING: if your program forks, UNCOMMENT this flag to prevent undefined
+// thread ids in the children logs.
+//
+// #define SPDLOG_DISABLE_TID_CACHING
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment if logger name logging is not needed.
+// This will prevent spdlog from copying the logger name on each log call.
+//
+// #define SPDLOG_NO_NAME
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to enable the SPDLOG_DEBUG/SPDLOG_TRACE macros.
+//
+// #define SPDLOG_DEBUG_ON
+// #define SPDLOG_TRACE_ON
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to avoid spdlog's usage of atomic log levels
+// Use only if your code never modifies a logger's log levels concurrently by
+// different threads.
+//
+// #define SPDLOG_NO_ATOMIC_LEVELS
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to enable usage of wchar_t for file names on Windows.
+//
+// #define SPDLOG_WCHAR_FILENAMES
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to override default eol ("\n" or "\r\n" under Linux/Windows)
+//
+// #define SPDLOG_EOL ";-)\n"
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to use your own copy of the fmt library instead of spdlog's copy.
+// In this case spdlog will try to include <fmt/format.h> so set your -I flag
+// accordingly.
+//
+// #define SPDLOG_FMT_EXTERNAL
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to enable wchar_t support (convert to utf8)
+//
+// #define SPDLOG_WCHAR_TO_UTF8_SUPPORT
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to prevent child processes from inheriting log file descriptors
+//
+// #define SPDLOG_PREVENT_CHILD_FD
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment if your compiler doesn't support the "final" keyword.
+// The final keyword allows more optimizations in release
+// mode with recent compilers. See GCC's documentation for -Wsuggest-final-types
+// for instance.
+//
+// #define SPDLOG_NO_FINAL
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to enable message counting feature.
+// Use the %i in the logger pattern to display log message sequence id.
+//
+// #define SPDLOG_ENABLE_MESSAGE_COUNTER
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to customize level names (e.g. "MT TRACE")
+//
+// #define SPDLOG_LEVEL_NAMES { "MY TRACE", "MY DEBUG", "MY INFO", "MY WARNING",
+// "MY ERROR", "MY CRITICAL", "OFF" }
+///////////////////////////////////////////////////////////////////////////////
diff --git a/src/include/spdlog/version.h b/src/include/spdlog/version.h
new file mode 100644
index 0000000000000000000000000000000000000000..729fcba082a0c8a0e42e7360e4d1004a7f0a2795
--- /dev/null
+++ b/src/include/spdlog/version.h
@@ -0,0 +1,12 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#define SPDLOG_VER_MAJOR 1
+#define SPDLOG_VER_MINOR 0
+#define SPDLOG_VER_PATCH 0
+
+#define SPDLOG_VERSION (SPDLOG_VER_MAJOR * 10000 + SPDLOG_VER_MINOR * 100 + SPDLOG_VER_PATCH)