helper_macros.h

#ifndef HELPER_MACROS_H
#define HELPER_MACROS_H
 
#include <inttypes.h>
 
#define DO_PRAGMA(x) _Pragma (#x)
 
#define WARNING_SAVE()          DO_PRAGMA(GCC diagnostic push)
 
#define WARNING_DISABLE(warn)   DO_PRAGMA(GCC diagnostic ignored "-W" warn)
 
#define WARNING_RESTORE()       DO_PRAGMA(GCC diagnostic pop)
 
#define ATTRIBUTE(x)            __attribute__ (( x ))
 
#define ALIGN(bytes)            ATTRIBUTE(aligned (bytes))
 
#define OPTIMIZE_O0             ATTRIBUTE(optimize("O0"))
 
#define OPTIMIZE_O1             ATTRIBUTE(optimize("O1"))
 
#define OPTIMIZE_O2             ATTRIBUTE(optimize("O2"))
 
#define OPTIMIZE_O3             ATTRIBUTE(optimize("O3"))
 
#define OPTIMIZE_OG             ATTRIBUTE(optimize("Og"))
 
#define OPTIMIZE_OS             ATTRIBUTE(optimize("Os"))
 
#define OPTIMIZE_OFAST          ATTRIBUTE(optimize("Ofast"))
 
#define FLAG(i)      (          1 << i)
 
#define FLAG8(i)     ( UINT8_C(1) << i)
 
#define FLAG16(i)    (UINT16_C(1) << i)
 
#define FLAG32(i)    (UINT32_C(1) << i)
 
#define FLAG64(i)    (UINT64_C(1) << i)
 
#if DEBUG
#   define BKPT()    __BKPT(0)
#else
#   define BKPT()
#endif
 
#define ARG_NOT_USED(arg) ((void)(arg))
 
#ifndef max
#   define max(a,b)     ((a) > (b) ? (a) : (b))
#endif
 
#ifndef min
#   define min(a,b)     ((a) <= (b) ? (a) : (b))
#endif
 
#ifndef sign
#   define sign(a)      ((a) >= 0 ? 1 : -1)
#endif
 
#endif