1*94d3b452SApple OSS Distributions /*===---- stddef.h - Basic type definitions --------------------------------=== 2*94d3b452SApple OSS Distributions * 3*94d3b452SApple OSS Distributions * Copyright (c) 2008 Eli Friedman 4*94d3b452SApple OSS Distributions * 5*94d3b452SApple OSS Distributions * Permission is hereby granted, free of charge, to any person obtaining a copy 6*94d3b452SApple OSS Distributions * of this software and associated documentation files (the "Software"), to deal 7*94d3b452SApple OSS Distributions * in the Software without restriction, including without limitation the rights 8*94d3b452SApple OSS Distributions * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9*94d3b452SApple OSS Distributions * copies of the Software, and to permit persons to whom the Software is 10*94d3b452SApple OSS Distributions * furnished to do so, subject to the following conditions: 11*94d3b452SApple OSS Distributions * 12*94d3b452SApple OSS Distributions * The above copyright notice and this permission notice shall be included in 13*94d3b452SApple OSS Distributions * all copies or substantial portions of the Software. 14*94d3b452SApple OSS Distributions * 15*94d3b452SApple OSS Distributions * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16*94d3b452SApple OSS Distributions * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17*94d3b452SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18*94d3b452SApple OSS Distributions * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19*94d3b452SApple OSS Distributions * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20*94d3b452SApple OSS Distributions * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 21*94d3b452SApple OSS Distributions * THE SOFTWARE. 22*94d3b452SApple OSS Distributions * 23*94d3b452SApple OSS Distributions *===-----------------------------------------------------------------------=== 24*94d3b452SApple OSS Distributions */ 25*94d3b452SApple OSS Distributions 26*94d3b452SApple OSS Distributions #if (defined(__has_include) && __has_include(<__xnu_libcxx_sentinel.h>) && !defined(XNU_LIBCXX_SDKROOT)) 27*94d3b452SApple OSS Distributions 28*94d3b452SApple OSS Distributions #if !__has_include_next(<stddef.h>) 29*94d3b452SApple OSS Distributions #error Do not build with -nostdinc (use GCC_USE_STANDARD_INCLUDE_SEARCHING=NO) 30*94d3b452SApple OSS Distributions #endif /* __has_include_next */ 31*94d3b452SApple OSS Distributions 32*94d3b452SApple OSS Distributions #include_next <stddef.h> 33*94d3b452SApple OSS Distributions 34*94d3b452SApple OSS Distributions #else /* (defined(__has_include) && __has_include(<__xnu_libcxx_sentinel.h>) && !defined(XNU_LIBCXX_SDKROOT)) */ 35*94d3b452SApple OSS Distributions 36*94d3b452SApple OSS Distributions #ifndef __STDDEF_H 37*94d3b452SApple OSS Distributions #define __STDDEF_H 38*94d3b452SApple OSS Distributions 39*94d3b452SApple OSS Distributions #undef NULL 40*94d3b452SApple OSS Distributions #ifdef __cplusplus 41*94d3b452SApple OSS Distributions #if __cplusplus >= 201103L 42*94d3b452SApple OSS Distributions #define NULL nullptr 43*94d3b452SApple OSS Distributions #else 44*94d3b452SApple OSS Distributions #undef __null // VC++ hack. 45*94d3b452SApple OSS Distributions #define NULL __null 46*94d3b452SApple OSS Distributions #endif 47*94d3b452SApple OSS Distributions #else 48*94d3b452SApple OSS Distributions #define NULL ((void*)0) 49*94d3b452SApple OSS Distributions #endif 50*94d3b452SApple OSS Distributions 51*94d3b452SApple OSS Distributions #ifndef _PTRDIFF_T 52*94d3b452SApple OSS Distributions #define _PTRDIFF_T 53*94d3b452SApple OSS Distributions typedef __typeof__(((int*)NULL) - ((int*)NULL)) ptrdiff_t; 54*94d3b452SApple OSS Distributions #endif 55*94d3b452SApple OSS Distributions #ifndef _SIZE_T 56*94d3b452SApple OSS Distributions #define _SIZE_T 57*94d3b452SApple OSS Distributions typedef __typeof__(sizeof(int)) size_t; 58*94d3b452SApple OSS Distributions #endif 59*94d3b452SApple OSS Distributions #ifndef __cplusplus 60*94d3b452SApple OSS Distributions #ifndef _WCHAR_T 61*94d3b452SApple OSS Distributions #define _WCHAR_T 62*94d3b452SApple OSS Distributions typedef __WCHAR_TYPE__ wchar_t; 63*94d3b452SApple OSS Distributions #endif 64*94d3b452SApple OSS Distributions #endif 65*94d3b452SApple OSS Distributions 66*94d3b452SApple OSS Distributions #ifndef offsetof 67*94d3b452SApple OSS Distributions #define offsetof(t, d) __builtin_offsetof(t, d) 68*94d3b452SApple OSS Distributions #endif 69*94d3b452SApple OSS Distributions 70*94d3b452SApple OSS Distributions #endif /* __STDDEF_H */ 71*94d3b452SApple OSS Distributions 72*94d3b452SApple OSS Distributions /* Some C libraries expect to see a wint_t here. Others (notably MinGW) will 73*94d3b452SApple OSS Distributions * use __WINT_TYPE__ directly; accommodate both by requiring __need_wint_t 74*94d3b452SApple OSS Distributions */ 75*94d3b452SApple OSS Distributions #if defined(__need_wint_t) 76*94d3b452SApple OSS Distributions #if !defined(_WINT_T) 77*94d3b452SApple OSS Distributions #define _WINT_T 78*94d3b452SApple OSS Distributions typedef __WINT_TYPE__ wint_t; 79*94d3b452SApple OSS Distributions #endif /* _WINT_T */ 80*94d3b452SApple OSS Distributions #undef __need_wint_t 81*94d3b452SApple OSS Distributions #endif /* __need_wint_t */ 82*94d3b452SApple OSS Distributions 83*94d3b452SApple OSS Distributions #endif 84