HijCrdn.h

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
 
 
#ifndef HijCrdn_h
#define HijCrdn_h
 
#include <cstdint>
 
extern "C" { uintptr_t hijcrdn_address_(); }
class HijCrdn {
public:
    HijCrdn();
    ~HijCrdn();
    
    float&      yp  (int i, int j);
    float&      yt  (int i, int j);
    
    void    init    (void);
 
    // return common array lengths
    inline int  lenI() const {return s_lenI;}
    inline int  lenJ() const {return s_lenJ;}
 
private: 
 
    // Lengths of array in HiMain2 common
    static const int s_lenI = 3;
    static const int s_lenJ = 300;
 
    struct HIJCRDN;
    friend struct HIJCRDN;
 
    struct HIJCRDN
    {
    float   yp  [s_lenJ][s_lenI];
    float   yt  [s_lenJ][s_lenI];
    };
 
    float  m_realdummy;
 
    static HIJCRDN* s_hijcrdn;
};
 
// set pointer to zero at start
HijCrdn::HIJCRDN* HijCrdn::s_hijcrdn =0;
 
inline void
HijCrdn::init(void)
{ if (!s_hijcrdn) s_hijcrdn = reinterpret_cast<HIJCRDN*>(hijcrdn_address_()); }
 
// Constructor
inline
HijCrdn::HijCrdn()
    : m_realdummy   (-999.)
{}
 
// Destructor
inline
HijCrdn::~HijCrdn()
{}
 
inline float&
HijCrdn::yp (int i, int j)
{
    init(); // check COMMON is initialized
    if( i < 1 || i > lenI() ||
    j < 1 || j > lenJ() ) return m_realdummy;
 
    return s_hijcrdn->yp[j-1][i-1];
}
 
inline float&
HijCrdn::yt (int i, int j)
{
    init(); // check COMMON is initialized
    if( i < 1 || i > lenI() ||
    j < 1 || j > lenJ() ) return m_realdummy;
 
    return s_hijcrdn->yt[j-1][i-1];
}
 
#endif