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- /*===---- stddef.h - Basic type definitions --------------------------------===
- *
- * Copyright (c) 2008 Eli Friedman
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- *===-----------------------------------------------------------------------===
- */
- #if !defined(__STDDEF_H) || defined(__need_ptrdiff_t) || \
- defined(__need_size_t) || defined(__need_wchar_t) || \
- defined(__need_NULL) || defined(__need_wint_t)
- #if !defined(__need_ptrdiff_t) && !defined(__need_size_t) && \
- !defined(__need_wchar_t) && !defined(__need_NULL) && \
- !defined(__need_wint_t)
- /* Always define miscellaneous pieces when modules are available. */
- #if !__has_feature(modules)
- #define __STDDEF_H
- #endif
- #define __need_ptrdiff_t
- #define __need_size_t
- #define __need_wchar_t
- #define __need_NULL
- #define __need_STDDEF_H_misc
- /* __need_wint_t is intentionally not defined here. */
- #endif
- #if defined(__need_ptrdiff_t)
- #if !defined(_PTRDIFF_T) || __has_feature(modules)
- /* Always define ptrdiff_t when modules are available. */
- #if !__has_feature(modules)
- #define _PTRDIFF_T
- #endif
- typedef __PTRDIFF_TYPE__ ptrdiff_t;
- #endif
- #undef __need_ptrdiff_t
- #endif /* defined(__need_ptrdiff_t) */
- #if defined(__need_size_t)
- #if !defined(_SIZE_T) || __has_feature(modules)
- /* Always define size_t when modules are available. */
- #if !__has_feature(modules)
- #define _SIZE_T
- #endif
- typedef __SIZE_TYPE__ size_t;
- #endif
- #undef __need_size_t
- #endif /*defined(__need_size_t) */
- #if defined(__need_STDDEF_H_misc)
- /* ISO9899:2011 7.20 (C11 Annex K): Define rsize_t if __STDC_WANT_LIB_EXT1__ is
- * enabled. */
- #if (defined(__STDC_WANT_LIB_EXT1__) && __STDC_WANT_LIB_EXT1__ >= 1 && \
- !defined(_RSIZE_T)) || __has_feature(modules)
- /* Always define rsize_t when modules are available. */
- #if !__has_feature(modules)
- #define _RSIZE_T
- #endif
- typedef __SIZE_TYPE__ rsize_t;
- #endif
- #endif /* defined(__need_STDDEF_H_misc) */
- #if defined(__need_wchar_t)
- #ifndef __cplusplus
- /* Always define wchar_t when modules are available. */
- #if !defined(_WCHAR_T) || __has_feature(modules)
- #if !__has_feature(modules)
- #define _WCHAR_T
- #if defined(_MSC_EXTENSIONS)
- #define _WCHAR_T_DEFINED
- #endif
- #endif
- typedef __WCHAR_TYPE__ wchar_t;
- #endif
- #endif
- #undef __need_wchar_t
- #endif /* defined(__need_wchar_t) */
- #if defined(__need_NULL)
- #undef NULL
- #ifdef __cplusplus
- # if !defined(__MINGW32__) && !defined(_MSC_VER)
- # define NULL __null
- # else
- # define NULL 0
- # endif
- #else
- # define NULL ((void*)0)
- #endif
- #ifdef __cplusplus
- #if defined(_MSC_EXTENSIONS) && defined(_NATIVE_NULLPTR_SUPPORTED)
- namespace std { typedef decltype(nullptr) nullptr_t; }
- using ::std::nullptr_t;
- #endif
- #endif
- #undef __need_NULL
- #endif /* defined(__need_NULL) */
- #if defined(__need_STDDEF_H_misc)
- #if __STDC_VERSION__ >= 201112L || __cplusplus >= 201103L
- #include "__stddef_max_align_t.h"
- #endif
- #define offsetof(t, d) __builtin_offsetof(t, d)
- #undef __need_STDDEF_H_misc
- #endif /* defined(__need_STDDEF_H_misc) */
- /* Some C libraries expect to see a wint_t here. Others (notably MinGW) will use
- __WINT_TYPE__ directly; accommodate both by requiring __need_wint_t */
- #if defined(__need_wint_t)
- /* Always define wint_t when modules are available. */
- #if !defined(_WINT_T) || __has_feature(modules)
- #if !__has_feature(modules)
- #define _WINT_T
- #endif
- typedef __WINT_TYPE__ wint_t;
- #endif
- #undef __need_wint_t
- #endif /* __need_wint_t */
- #endif
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