static_assert omg

gistfile1.c

#if defined(COMPILER_GNUC) &&					\
  (4 < __GNUC__ || (__GNUC__ == 4 && 6 <= __GNUC_MINOR__))
#define STATIC_ASSERT(cond,m) _Static_assert(cond, m)
#else 
/* Not GCC 4.6 */
#define STATIC_ASSERT_NAME2(name, line) name ## line
#define STATIC_ASSERT_NAME(line) STATIC_ASSERT_NAME2(jas_assert_, line)
/* The unused 'm' is a transition into C1x _Static_assert */
#ifdef __COUNTER__ 
#define STATIC_ASSERT(cond,m)						\
  extern void STATIC_ASSERT_NAME(__COUNTER__)(int STATIC_ASSERTION_FAILED[(cond)?1:-1])
#else
#define STATIC_ASSERT(cond,m)						\
  extern void STATIC_ASSERT_NAME(__LINE__)(int STATIC_ASSERTION_FAILED[(cond)?1:-1])
#endif
#endif