iostream

benchmarks/dvcs/analysis/dvcs_ps_gen.cxx

@@ -2,6 +2,8 @@
 #include "TLorentzVector.h"
 #include "TGenPhaseSpace.h"
 
+#include <iostream>
+
 void dvcs_ps_gen() {
   double E_p = 100.0;
   double M_p = 0.938;