assert.h

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#ifndef _ASSERT_H
#define _ASSERT_H 1
 
#ifdef __cplusplus
extern "C"
{
#endif
 
#include "_internal/config.h"
 
_PUBLIC void _assert_99(const char* const, const char* const, const char* const);
_PUBLIC void _assert_89(const char* const);
 
/* If NDEBUG is set, assert() is a null operation. */
#undef assert
 
#define _SYMBOL2STRING(x) #x
#define _VALUE2STRING(x) _SYMBOL2STRING(x)
 
// clang-format off
#ifdef NDEBUG
#define assert(ignore) ((void)0)
#else
#if __STDC_VERSION__ >= 199901L
#define assert(expression) \
    ((expression) ? (void)0 \
        : _assert_99("Assertion failed: " #expression, __func__, __FILE__"-"_VALUE2STRING(__LINE__)))
#else
#define assert(expression) ((expression) ? (void)0 : _assert_89("Assertion failed: " #expression " file " __FILE__ "."))
#endif
#endif
// clang-format on
 
#if __STDC_VERSION__ >= 201112L
#define static_assert _Static_assert
#endif
 
#ifdef __cplusplus
}
#endif
 
#endif