bridge_long.h

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#ifndef BRIDGE_LONG_INCLUDED
#define BRIDGE_LONG_INCLUDED
 
 
//-- choose long type
//- NB. size_t is not recommended due to its environment dependence
 
#include <cstdint>
 
#if (__WORDSIZE == 64)
typedef int64_t   long_t;
#elif (__WORDSIZE == 32)
#warning 32bit environment may overflow for int variables
typedef int32_t   long_t;
#else
#error unknown environment, not 32bit nor 64bit ?
#endif
 
// NB. some variables such as Lvol may overflow
//   ex. Lvol = 256^3 x 128 = 2147483648 (max_int = 2147483647)
 
#endif // BRIDGE_LONG_INCLUDED