PyqPar.h

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
 
//
// Description:
//      Class definition for PyqPar, which is used
//      to modify PYQPAR common.
 
#ifndef PyqPar_h
#define PyqPar_h
 
#include <cstdint>
 
extern "C" { uintptr_t pyqpar_address_(); }
 
class PyqPar {
public:
    PyqPar();
    ~PyqPar();
    
    double&     t0  (void);
    double&     tau0    (void);
    int&        nf  (void);
    int&        ienglu  (void);
    int&        ianglu  (void);
 
    void    init    (void);
 
private: 
 
    struct PYQPAR;
    friend struct PYQPAR;
 
    struct PYQPAR
    {
      double     t0;
      double     tau0;
      int        nf;
      int        ienglu;
      int        ianglu;
    };
 
    static PYQPAR* s_pyqpar;
};
 
// set pointer to zero at start
PyqPar::PYQPAR* PyqPar::s_pyqpar =0;
 
inline void
PyqPar::init(void)
{ if (!s_pyqpar) s_pyqpar = reinterpret_cast<PYQPAR*>(pyqpar_address_()); }
 
// Constructor
inline
PyqPar::PyqPar()
{}
 
// Destructor
inline
PyqPar::~PyqPar()
{}
 
inline double&
PyqPar::t0  (void)
{
    init();
    return s_pyqpar->t0;
}
 
inline double&
PyqPar::tau0    (void)
{
    init();
    return s_pyqpar->tau0;
}
 
inline int&
PyqPar::nf  (void)
{
    init();
    return s_pyqpar->nf;
}
 
inline int&
PyqPar::ienglu  (void)
{
    init();
    return s_pyqpar->ienglu;
}
 
inline int&
PyqPar::ianglu  (void)
{
    init();
    return s_pyqpar->ianglu;
}
 
#endif