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