#pragma once #define unlikely(x) __builtin_expect(!!(x), 0) static void ASSERT_FAIL(const char *cond, const char *file, unsigned int line, const char *func) __attribute__ ((__noreturn__)); static void ASSERT_FAIL(const char *cond, const char *file, unsigned int line, const char *func) { fprintf(stderr, "%s:%d: %s: ASSERT(%s) failed\n", file, line, func, cond); abort(); } #define ASSERT(x) if (unlikely(!(x))) { ASSERT_FAIL( __STRING(x), __FILE__, __LINE__, __PRETTY_FUNCTION__); }