1*5c2921b0SApple OSS Distributions /*===---- stddef.h - Basic type definitions --------------------------------=== 2*5c2921b0SApple OSS Distributions * 3*5c2921b0SApple OSS Distributions * Copyright (c) 2008 Eli Friedman 4*5c2921b0SApple OSS Distributions * 5*5c2921b0SApple OSS Distributions * Permission is hereby granted, free of charge, to any person obtaining a copy 6*5c2921b0SApple OSS Distributions * of this software and associated documentation files (the "Software"), to deal 7*5c2921b0SApple OSS Distributions * in the Software without restriction, including without limitation the rights 8*5c2921b0SApple OSS Distributions * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9*5c2921b0SApple OSS Distributions * copies of the Software, and to permit persons to whom the Software is 10*5c2921b0SApple OSS Distributions * furnished to do so, subject to the following conditions: 11*5c2921b0SApple OSS Distributions * 12*5c2921b0SApple OSS Distributions * The above copyright notice and this permission notice shall be included in 13*5c2921b0SApple OSS Distributions * all copies or substantial portions of the Software. 14*5c2921b0SApple OSS Distributions * 15*5c2921b0SApple OSS Distributions * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16*5c2921b0SApple OSS Distributions * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17*5c2921b0SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18*5c2921b0SApple OSS Distributions * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19*5c2921b0SApple OSS Distributions * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20*5c2921b0SApple OSS Distributions * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 21*5c2921b0SApple OSS Distributions * THE SOFTWARE. 22*5c2921b0SApple OSS Distributions * 23*5c2921b0SApple OSS Distributions *===-----------------------------------------------------------------------=== 24*5c2921b0SApple OSS Distributions */ 25*5c2921b0SApple OSS Distributions 26*5c2921b0SApple OSS Distributions #ifndef __STDDEF_H 27*5c2921b0SApple OSS Distributions #define __STDDEF_H 28*5c2921b0SApple OSS Distributions 29*5c2921b0SApple OSS Distributions #undef NULL 30*5c2921b0SApple OSS Distributions #ifdef __cplusplus 31*5c2921b0SApple OSS Distributions #if __cplusplus >= 201103L 32*5c2921b0SApple OSS Distributions #define NULL nullptr 33*5c2921b0SApple OSS Distributions #else 34*5c2921b0SApple OSS Distributions #undef __null // VC++ hack. 35*5c2921b0SApple OSS Distributions #define NULL __null 36*5c2921b0SApple OSS Distributions #endif 37*5c2921b0SApple OSS Distributions #else 38*5c2921b0SApple OSS Distributions #define NULL ((void*)0) 39*5c2921b0SApple OSS Distributions #endif 40*5c2921b0SApple OSS Distributions 41*5c2921b0SApple OSS Distributions #ifndef _PTRDIFF_T 42*5c2921b0SApple OSS Distributions #define _PTRDIFF_T 43*5c2921b0SApple OSS Distributions typedef __typeof__(((int*)NULL)-((int*)NULL)) ptrdiff_t; 44*5c2921b0SApple OSS Distributions #endif 45*5c2921b0SApple OSS Distributions #ifndef _SIZE_T 46*5c2921b0SApple OSS Distributions #define _SIZE_T 47*5c2921b0SApple OSS Distributions typedef __typeof__(sizeof(int)) size_t; 48*5c2921b0SApple OSS Distributions #endif 49*5c2921b0SApple OSS Distributions #ifndef __cplusplus 50*5c2921b0SApple OSS Distributions #ifndef _WCHAR_T 51*5c2921b0SApple OSS Distributions #define _WCHAR_T 52*5c2921b0SApple OSS Distributions typedef __WCHAR_TYPE__ wchar_t; 53*5c2921b0SApple OSS Distributions #endif 54*5c2921b0SApple OSS Distributions #endif 55*5c2921b0SApple OSS Distributions 56*5c2921b0SApple OSS Distributions #ifndef offsetof 57*5c2921b0SApple OSS Distributions #define offsetof(t, d) __builtin_offsetof(t, d) 58*5c2921b0SApple OSS Distributions #endif 59*5c2921b0SApple OSS Distributions 60*5c2921b0SApple OSS Distributions #endif /* __STDDEF_H */ 61*5c2921b0SApple OSS Distributions 62*5c2921b0SApple OSS Distributions /* Some C libraries expect to see a wint_t here. Others (notably MinGW) will use 63*5c2921b0SApple OSS Distributions __WINT_TYPE__ directly; accommodate both by requiring __need_wint_t */ 64*5c2921b0SApple OSS Distributions #if defined(__need_wint_t) 65*5c2921b0SApple OSS Distributions #if !defined(_WINT_T) 66*5c2921b0SApple OSS Distributions #define _WINT_T 67*5c2921b0SApple OSS Distributions typedef __WINT_TYPE__ wint_t; 68*5c2921b0SApple OSS Distributions #endif /* _WINT_T */ 69*5c2921b0SApple OSS Distributions #undef __need_wint_t 70*5c2921b0SApple OSS Distributions #endif /* __need_wint_t */ 71