diff options
Diffstat (limited to 'contrib/llvm/tools/clang/lib/Headers/stddef.h')
-rw-r--r-- | contrib/llvm/tools/clang/lib/Headers/stddef.h | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/contrib/llvm/tools/clang/lib/Headers/stddef.h b/contrib/llvm/tools/clang/lib/Headers/stddef.h new file mode 100644 index 000000000000..735499671156 --- /dev/null +++ b/contrib/llvm/tools/clang/lib/Headers/stddef.h @@ -0,0 +1,137 @@ +/*===---- 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 |