fusl/include/assert.h

#include <features.h>

#undef assert

#ifdef NDEBUG
#define assert(x) (void)0
#else
#define assert(x) \
  ((void)((x) || (__assert_fail(#x, __FILE__, __LINE__, __func__), 0)))
#endif

#if __STDC_VERSION__ >= 201112L && !defined(__cplusplus)
#define static_assert _Static_assert
#endif

#ifdef __cplusplus
extern "C" {
#endif

void __assert_fail(const char*, const char*, int, const char*);

#ifdef __cplusplus
}
#endif