1 /* 2 * Copyright 2004-2015 Haiku, Inc. All Rights Reserved. 3 * Distributed under the terms of the MIT License. 4 */ 5 6 /* Include guards are omitted, as assert.h is required 7 to support being included multiple times. 8 9 E.g. the following is required to be valid: 10 11 #undef NDEBUG 12 #include <assert.h> 13 14 assert(0); // this assertion will be triggered 15 16 #define NDEBUG 17 #include <assert.h> 18 19 assert(0); // this assertion will not be triggered 20 */ 21 22 #undef assert 23 24 #ifndef NDEBUG 25 /* defining NDEBUG disables assert() functionality */ 26 27 #ifdef __cplusplus 28 extern "C" { 29 #endif 30 31 extern void __assert_fail(const char *assertion, const char *file, 32 unsigned int line, const char *function) 33 __attribute__ ((noreturn)); 34 35 extern void __assert_perror_fail(int error, const char *file, 36 unsigned int line, const char *function) 37 __attribute__ ((noreturn)); 38 39 #ifdef __cplusplus 40 } 41 #endif 42 43 #define assert(assertion) \ 44 ((assertion) ? (void)0 : __assert_fail(#assertion, __FILE__, __LINE__, __PRETTY_FUNCTION__)) 45 46 #else /* NDEBUG */ 47 # define assert(condition) ((void)0) 48 #endif 49