| /*===---- stddef.h - Basic type definitions --------------------------------=== |
| * |
| * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| * See https://llvm.org/LICENSE.txt for license information. |
| * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| * |
| *===-----------------------------------------------------------------------=== |
| */ |
| |
| #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 |