macros.h

   1 #ifndef MACROS_H_
   2 #define MACROS_H_
   3
   4 #define PRIMITIVE_CAT(a, b) a##b
   5 #define CAT(a, b) PRIMITIVE_CAT(a, b)
   6 #define PRIMITIVE_CAT_(a, b) a##_##b
   7 #define CAT_(a, b) PRIMITIVE_CAT_(a, b)
   8
   9 #define EVAL(...) __EVAL1024(__VA_ARGS__)
  10 #define __EVAL1024(...) __EVAL512(__EVAL512(__VA_ARGS__))
  11 #define __EVAL512(...) __EVAL256(__EVAL256(__VA_ARGS__))
  12 #define __EVAL256(...) __EVAL128(__EVAL128(__VA_ARGS__))
  13 #define __EVAL128(...) __EVAL64(__EVAL64(__VA_ARGS__))
  14 #define __EVAL64(...) __EVAL32(__EVAL32(__VA_ARGS__))
  15 #define __EVAL32(...) __EVAL16(__EVAL16(__VA_ARGS__))
  16 #define __EVAL16(...) __EVAL8(__EVAL8(__VA_ARGS__))
  17 #define __EVAL8(...) __EVAL4(__EVAL4(__VA_ARGS__))
  18 #define __EVAL4(...) __EVAL2(__EVAL2(__VA_ARGS__))
  19 #define __EVAL2(...) __EVAL1(__EVAL1(__VA_ARGS__))
  20 #define __EVAL1(...) __VA_ARGS__
  21
  22 #define EMPTY()
  23
  24 #define DEFER(macro) macro EMPTY()
  25
  26 #define SIZE_C(c) CAT(CAT(UINT,__WORDSIZE),_C(c))
  27
  28 #endif // MACROS_H_