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| | #ifndef _STDC_VERSION_STDDEF_H__
#define _STDC_VERSION_STDDEF_H__ 201900L
#if __cplusplus >= 201103L
#define NULL nullptr
#elif defined(__cplusplus)
#define NULL 0L
#else
#define NULL ((void*)0)
#endif
#define __NEED_ptrdiff_t
#define __NEED_size_t
#define __NEED_wchar_t
#if __STDC_VERSION__ >= 201112L || __cplusplus >= 201103L
#define __NEED_max_align_t
#endif
#include <bits/alltypes.h>
#if __GNUC__ > 3
#define offsetof(type, member) __builtin_offsetof(type, member)
#else
#define offsetof(type, member) ((size_t)( (char *)&(((type *)0)->member) - (char *)0 ))
#endif
#if __STDC_VERSION__ >= 202000L
#define unreachable() __builtin_unreachable()
#endif
#if __STDC_VERSION__ >= 202311L
typedef typeof(nullptr) nullptr_t;
// Some compilers still only have partial support for C23
#elif __STDC_VERSION__ >= 202000L && defined(__is_identifier)
#if !__is_identifier(nullptr)
typedef typeof(nullptr) nullptr_t;
#endif
#endif
#endif
|