/*===---- 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. * *===-----------------------------------------------------------------------=== */ #ifndef __STDDEF_H #define __STDDEF_H #ifndef _PTRDIFF_T #define _PTRDIFF_T typedef __typeof__(((int*)0)-((int*)0)) ptrdiff_t; #endif #ifndef _SIZE_T #define _SIZE_T typedef __typeof__(sizeof(int)) size_t; #endif #ifndef __cplusplus #ifndef _WCHAR_T #define _WCHAR_T typedef __WCHAR_TYPE__ wchar_t; #endif #endif #undef NULL #ifdef __cplusplus #undef __null // VC++ hack. #define NULL __null #else #define NULL ((void*)0) #endif #ifndef offsetof #define offsetof(t, d) __builtin_offsetof(t, d) #endif #endif /* __STDDEF_H */ /* 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) #if !defined(_WINT_T) #define _WINT_T typedef __WINT_TYPE__ wint_t; #endif /* _WINT_T */ #undef __need_wint_t #endif /* __need_wint_t */