HijingPythiaWrapper.h

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#ifndef gen_HijingPythiaWrapper_h
#define gen_HijingPythiaWrapper_h

#include "GeneratorInterface/Pythia6Interface/interface/Pythia6Service.h"
#include "HepMC/PythiaWrapper6_4.h"

extern "C" {
void py1ent_(int& ip, int& kf, double& pe, double& the, double& phi);
double pymass_(int&);
void pyexec_();
int pycomp_(int&);
void pyglfr_();
void pyglrhad_();
void pystlfr_();
void pystrhad_();
void pygive_(const char*, int);
void pydecy_(int& ip);
void pyrobo_(int&, int&, double&, double&, double&, double&, double&);

void txgive_(const char*, int);
void txgive_init_(void);

// static bool call_pygive(const std::string &line)
// {
//    int numWarn = pydat1.mstu[26];    // # warnings
//    int numErr = pydat1.mstu[22];     // # errors
//
//    pygive_(line.c_str(), line.length());
//
//    return pydat1.mstu[26] == numWarn &&
//    pydat1.mstu[22] == numErr;
// }
}

#define PYCOMP pycomp_
extern "C" {
int PYCOMP(int& length);
}

#define LUGIVE pygive_
extern "C" {
void LUGIVE(const char*, int length);
}

/*
extern "C" {
   double ran_(int*){
      return gen::pyr_(0);
   }
}
*/

inline float ranff_(unsigned int* iseed) {
  (*iseed) = (69069 * (*iseed) + 1) & 0xffffffffUL;
  return (*iseed) / 4294967296.0;
}

/*

#include "CLHEP/Random/RandomEngine.h"
extern CLHEP::HepRandomEngine* randomEngine;
extern "C" {
   double pyr_(int* idummy);
}

CLHEP::HepRandomEngine* randomEngine;

double pyr_(int *idummy)
{
   // getInstance will throw if no one used enter/leave
   // or this is the wrong caller class, like e.g. Herwig6Instance
   return randomEngine->flat(); 
}

*/

#endif