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#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

#ifdef __cplusplus
extern "C" {
#endif

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

#ifdef __cplusplus
}
#endif