Readme

README.md

 test
 
+```
 g++ -o test -std=c++17  func_pattern.cxx -I.
+```
 
+Running the test:
+```
+$ ./test
+2
+77
+79
+12166
+158
+8.21963e-05
+12166
+1
+6.75623e-09
+
+These should be the same as the first 3 variables above.
+2
+77
+79
+
+XBD
+2
+158
+12166
+```
+
+Looking at assembly:
+```
 g++ -S -o test.asm -std=c++17  func_pattern.cxx -I. -O3
+```