StreamHelpers.h

//--------------------------------------------------------------------------
#ifndef HEPMC_STREAM_HELPERS_H
#define HEPMC_STREAM_HELPERS_H

// garren@fnal.gov, March 2009
//
// This header contains helper functions used by streaming IO

#include <ostream>
#include <istream>

#include "HepMC/GenEvent.h"
#include "HepMC/TempParticleMap.h"

namespace HepMC {

namespace detail {

std::ostream & establish_output_stream_info( std::ostream & );
std::istream & establish_input_stream_info( std::istream & );

std::istream & read_vertex( std::istream &, TempParticleMap &, GenVertex * );

std::istream & read_particle( std::istream&, TempParticleMap &, GenParticle * );

inline std::ostream & output( std::ostream & os, const double& d ) {
    if( os  ) {
        if ( d == 0. ) {
            os << ' ' << (int)0;
        } else {
            os << ' ' << d;
        }
    }
    return os;
}

inline std::ostream & output( std::ostream & os, const float& d ) {
    if( os  ) {
        if ( d == 0. ) {
            os << ' ' << (int)0;
        } else {
            os << ' ' << d;
        }
    }
    return os;
}

inline std::ostream & output( std::ostream & os, const int& i ) { 
    if( os  ) {
        if ( i == 0. ) {
            os << ' ' << (int)0;
        } else {
            os << ' ' << i; 
        }
    }
    return os;
}

inline std::ostream & output( std::ostream & os, const long& i ) {
    if( os  ) {
        if ( i == 0. ) {
            os << ' ' << (int)0;
        } else {
            os << ' ' << i; 
        }
    }
    return os;
}

inline std::ostream & output( std::ostream & os, const char& c ) {
    if( os  ) {
        if ( c ) {
            os << c; 
        } else {
            os << ' ' ;
        }
    }
    return os;
}

std::istream & find_event_end( std::istream & );

} // detail

} // HepMC

#endif  // HEPMC_STREAM_HELPERS_H
//--------------------------------------------------------------------------