You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
libowfat/compiletimeassert.h

23 lines
565 B
C

#ifdef __clang__
// clang already includes the condition in the error message and emits
// an additional warning here if we use the variant without message
#define compiletimeassert(cond) _Static_assert(cond,"")
#elif __STDC_VERSION__ >= 201710L
#define compiletimeassert(cond) _Static_assert(cond,#cond)
#elif __STDC_VERSION__ >= 201112L
#define compiletimeassert(cond) _Static_assert(cond,#cond)
#else
#define __X(x, y) x ## y
#define __Y(x, y) __X(x, y)
#define compiletimeassert(cond) struct __Y(foo,__LINE__) { char __temp[1 - (!(cond))*2]; };
#endif