1*33de042dSApple OSS Distributions /*===---- stddef.h - Basic type definitions --------------------------------=== 2*33de042dSApple OSS Distributions * 3*33de042dSApple OSS Distributions * Copyright (c) 2008 Eli Friedman 4*33de042dSApple OSS Distributions * 5*33de042dSApple OSS Distributions * Permission is hereby granted, free of charge, to any person obtaining a copy 6*33de042dSApple OSS Distributions * of this software and associated documentation files (the "Software"), to deal 7*33de042dSApple OSS Distributions * in the Software without restriction, including without limitation the rights 8*33de042dSApple OSS Distributions * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9*33de042dSApple OSS Distributions * copies of the Software, and to permit persons to whom the Software is 10*33de042dSApple OSS Distributions * furnished to do so, subject to the following conditions: 11*33de042dSApple OSS Distributions * 12*33de042dSApple OSS Distributions * The above copyright notice and this permission notice shall be included in 13*33de042dSApple OSS Distributions * all copies or substantial portions of the Software. 14*33de042dSApple OSS Distributions * 15*33de042dSApple OSS Distributions * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16*33de042dSApple OSS Distributions * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17*33de042dSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18*33de042dSApple OSS Distributions * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19*33de042dSApple OSS Distributions * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20*33de042dSApple OSS Distributions * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 21*33de042dSApple OSS Distributions * THE SOFTWARE. 22*33de042dSApple OSS Distributions * 23*33de042dSApple OSS Distributions *===-----------------------------------------------------------------------=== 24*33de042dSApple OSS Distributions */ 25*33de042dSApple OSS Distributions 26*33de042dSApple OSS Distributions #if (defined(__has_include) && __has_include(<__xnu_libcxx_sentinel.h>) && !defined(XNU_LIBCXX_SDKROOT)) 27*33de042dSApple OSS Distributions 28*33de042dSApple OSS Distributions #if !__has_include_next(<stddef.h>) 29*33de042dSApple OSS Distributions #error Do not build with -nostdinc (use GCC_USE_STANDARD_INCLUDE_SEARCHING=NO) 30*33de042dSApple OSS Distributions #endif /* __has_include_next */ 31*33de042dSApple OSS Distributions 32*33de042dSApple OSS Distributions #include_next <stddef.h> 33*33de042dSApple OSS Distributions 34*33de042dSApple OSS Distributions #else /* (defined(__has_include) && __has_include(<__xnu_libcxx_sentinel.h>) && !defined(XNU_LIBCXX_SDKROOT)) */ 35*33de042dSApple OSS Distributions 36*33de042dSApple OSS Distributions #ifndef __STDDEF_H 37*33de042dSApple OSS Distributions #define __STDDEF_H 38*33de042dSApple OSS Distributions 39*33de042dSApple OSS Distributions #undef NULL 40*33de042dSApple OSS Distributions #ifdef __cplusplus 41*33de042dSApple OSS Distributions #if __cplusplus >= 201103L 42*33de042dSApple OSS Distributions #define NULL nullptr 43*33de042dSApple OSS Distributions #else 44*33de042dSApple OSS Distributions #undef __null // VC++ hack. 45*33de042dSApple OSS Distributions #define NULL __null 46*33de042dSApple OSS Distributions #endif 47*33de042dSApple OSS Distributions #else 48*33de042dSApple OSS Distributions #define NULL ((void*)0) 49*33de042dSApple OSS Distributions #endif 50*33de042dSApple OSS Distributions 51*33de042dSApple OSS Distributions #ifndef _PTRDIFF_T 52*33de042dSApple OSS Distributions #define _PTRDIFF_T 53*33de042dSApple OSS Distributions typedef __typeof__(((int*)NULL) - ((int*)NULL)) ptrdiff_t; 54*33de042dSApple OSS Distributions #endif 55*33de042dSApple OSS Distributions #ifndef _SIZE_T 56*33de042dSApple OSS Distributions #define _SIZE_T 57*33de042dSApple OSS Distributions typedef __typeof__(sizeof(int)) size_t; 58*33de042dSApple OSS Distributions #endif 59*33de042dSApple OSS Distributions #ifndef __cplusplus 60*33de042dSApple OSS Distributions #ifndef _WCHAR_T 61*33de042dSApple OSS Distributions #define _WCHAR_T 62*33de042dSApple OSS Distributions typedef __WCHAR_TYPE__ wchar_t; 63*33de042dSApple OSS Distributions #endif 64*33de042dSApple OSS Distributions #endif 65*33de042dSApple OSS Distributions 66*33de042dSApple OSS Distributions #ifndef offsetof 67*33de042dSApple OSS Distributions #define offsetof(t, d) __builtin_offsetof(t, d) 68*33de042dSApple OSS Distributions #endif 69*33de042dSApple OSS Distributions 70*33de042dSApple OSS Distributions #endif /* __STDDEF_H */ 71*33de042dSApple OSS Distributions 72*33de042dSApple OSS Distributions /* Some C libraries expect to see a wint_t here. Others (notably MinGW) will 73*33de042dSApple OSS Distributions * use __WINT_TYPE__ directly; accommodate both by requiring __need_wint_t 74*33de042dSApple OSS Distributions */ 75*33de042dSApple OSS Distributions #if defined(__need_wint_t) 76*33de042dSApple OSS Distributions #if !defined(_WINT_T) 77*33de042dSApple OSS Distributions #define _WINT_T 78*33de042dSApple OSS Distributions typedef __WINT_TYPE__ wint_t; 79*33de042dSApple OSS Distributions #endif /* _WINT_T */ 80*33de042dSApple OSS Distributions #undef __need_wint_t 81*33de042dSApple OSS Distributions #endif /* __need_wint_t */ 82*33de042dSApple OSS Distributions 83*33de042dSApple OSS Distributions #endif 84