freestanding-headers/stddef.h
2024-01-02 19:14:05 +01:00

54 lines
1.5 KiB
C

/* Copyright (C) 2022-2024 mintsuki and contributors.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#if !defined(__FSTD_HDRS_STDDEF_H) || defined(__FSTD_HDRS_CXX_WRAP)
#if !defined(__FSTD_HDRS_CXX_WRAP)
#define __FSTD_HDRS_STDDEF_H 1
#endif
typedef __SIZE_TYPE__ size_t;
typedef __PTRDIFF_TYPE__ ptrdiff_t;
#ifndef __cplusplus
typedef __WCHAR_TYPE__ wchar_t;
/* XXX fix to use proper __STDC_VERSION__ number later on */
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 202000L)
typedef typeof(nullptr) nullptr_t;
#endif
#endif
#ifdef __cplusplus
typedef decltype(nullptr) nullptr_t;
#endif
#undef NULL
#ifndef __cplusplus
# define NULL ((void *)0)
#else
# define NULL 0
#endif
#undef offsetof
#define offsetof(s, m) __builtin_offsetof(s, m)
/* XXX fix to use proper __STDC_VERSION__ number later on */
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 202000L)
# undef unreachable
# define unreachable() __builtin_unreachable()
#endif
#endif