1*8d741a5dSApple OSS Distributions /*===---- stddef.h - Basic type definitions --------------------------------=== 2*8d741a5dSApple OSS Distributions * 3*8d741a5dSApple OSS Distributions * Copyright (c) 2008 Eli Friedman 4*8d741a5dSApple OSS Distributions * 5*8d741a5dSApple OSS Distributions * Permission is hereby granted, free of charge, to any person obtaining a copy 6*8d741a5dSApple OSS Distributions * of this software and associated documentation files (the "Software"), to deal 7*8d741a5dSApple OSS Distributions * in the Software without restriction, including without limitation the rights 8*8d741a5dSApple OSS Distributions * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9*8d741a5dSApple OSS Distributions * copies of the Software, and to permit persons to whom the Software is 10*8d741a5dSApple OSS Distributions * furnished to do so, subject to the following conditions: 11*8d741a5dSApple OSS Distributions * 12*8d741a5dSApple OSS Distributions * The above copyright notice and this permission notice shall be included in 13*8d741a5dSApple OSS Distributions * all copies or substantial portions of the Software. 14*8d741a5dSApple OSS Distributions * 15*8d741a5dSApple OSS Distributions * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16*8d741a5dSApple OSS Distributions * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17*8d741a5dSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18*8d741a5dSApple OSS Distributions * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19*8d741a5dSApple OSS Distributions * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20*8d741a5dSApple OSS Distributions * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 21*8d741a5dSApple OSS Distributions * THE SOFTWARE. 22*8d741a5dSApple OSS Distributions * 23*8d741a5dSApple OSS Distributions *===-----------------------------------------------------------------------=== 24*8d741a5dSApple OSS Distributions */ 25*8d741a5dSApple OSS Distributions 26*8d741a5dSApple OSS Distributions #if (defined(__has_include) && __has_include(<__xnu_libcxx_sentinel.h>) && !defined(XNU_LIBCXX_SDKROOT)) 27*8d741a5dSApple OSS Distributions 28*8d741a5dSApple OSS Distributions #if !__has_include_next(<stddef.h>) 29*8d741a5dSApple OSS Distributions #error Do not build with -nostdinc (use GCC_USE_STANDARD_INCLUDE_SEARCHING=NO) 30*8d741a5dSApple OSS Distributions #endif /* __has_include_next */ 31*8d741a5dSApple OSS Distributions 32*8d741a5dSApple OSS Distributions #include_next <stddef.h> 33*8d741a5dSApple OSS Distributions 34*8d741a5dSApple OSS Distributions #else /* (defined(__has_include) && __has_include(<__xnu_libcxx_sentinel.h>) && !defined(XNU_LIBCXX_SDKROOT)) */ 35*8d741a5dSApple OSS Distributions 36*8d741a5dSApple OSS Distributions #ifndef __STDDEF_H 37*8d741a5dSApple OSS Distributions #define __STDDEF_H 38*8d741a5dSApple OSS Distributions 39*8d741a5dSApple OSS Distributions #undef NULL 40*8d741a5dSApple OSS Distributions #ifdef __cplusplus 41*8d741a5dSApple OSS Distributions #if __cplusplus >= 201103L 42*8d741a5dSApple OSS Distributions #define NULL nullptr 43*8d741a5dSApple OSS Distributions #else 44*8d741a5dSApple OSS Distributions #undef __null // VC++ hack. 45*8d741a5dSApple OSS Distributions #define NULL __null 46*8d741a5dSApple OSS Distributions #endif 47*8d741a5dSApple OSS Distributions #else 48*8d741a5dSApple OSS Distributions #define NULL ((void*)0) 49*8d741a5dSApple OSS Distributions #endif 50*8d741a5dSApple OSS Distributions 51*8d741a5dSApple OSS Distributions #ifndef _PTRDIFF_T 52*8d741a5dSApple OSS Distributions #define _PTRDIFF_T 53*8d741a5dSApple OSS Distributions typedef __typeof__(((int*)NULL) - ((int*)NULL)) ptrdiff_t; 54*8d741a5dSApple OSS Distributions #endif 55*8d741a5dSApple OSS Distributions #ifndef _SIZE_T 56*8d741a5dSApple OSS Distributions #define _SIZE_T 57*8d741a5dSApple OSS Distributions typedef __typeof__(sizeof(int)) size_t; 58*8d741a5dSApple OSS Distributions #endif 59*8d741a5dSApple OSS Distributions #ifndef __cplusplus 60*8d741a5dSApple OSS Distributions #ifndef _WCHAR_T 61*8d741a5dSApple OSS Distributions #define _WCHAR_T 62*8d741a5dSApple OSS Distributions typedef __WCHAR_TYPE__ wchar_t; 63*8d741a5dSApple OSS Distributions #endif 64*8d741a5dSApple OSS Distributions #endif 65*8d741a5dSApple OSS Distributions 66*8d741a5dSApple OSS Distributions #ifndef offsetof 67*8d741a5dSApple OSS Distributions #define offsetof(t, d) __builtin_offsetof(t, d) 68*8d741a5dSApple OSS Distributions #endif 69*8d741a5dSApple OSS Distributions 70*8d741a5dSApple OSS Distributions #endif /* __STDDEF_H */ 71*8d741a5dSApple OSS Distributions 72*8d741a5dSApple OSS Distributions /* Some C libraries expect to see a wint_t here. Others (notably MinGW) will 73*8d741a5dSApple OSS Distributions * use __WINT_TYPE__ directly; accommodate both by requiring __need_wint_t 74*8d741a5dSApple OSS Distributions */ 75*8d741a5dSApple OSS Distributions #if defined(__need_wint_t) 76*8d741a5dSApple OSS Distributions #if !defined(_WINT_T) 77*8d741a5dSApple OSS Distributions #define _WINT_T 78*8d741a5dSApple OSS Distributions typedef __WINT_TYPE__ wint_t; 79*8d741a5dSApple OSS Distributions #endif /* _WINT_T */ 80*8d741a5dSApple OSS Distributions #undef __need_wint_t 81*8d741a5dSApple OSS Distributions #endif /* __need_wint_t */ 82*8d741a5dSApple OSS Distributions 83*8d741a5dSApple OSS Distributions #endif 84