stddef.h revision 08e46f97ec8c00cc1bfe87fcd014db211a878ffb
18ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman/*===---- stddef.h - Basic type definitions --------------------------------=== 28ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * 38ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * Copyright (c) 2008 Eli Friedman 48ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * 58ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * Permission is hereby granted, free of charge, to any person obtaining a copy 68ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * of this software and associated documentation files (the "Software"), to deal 78ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * in the Software without restriction, including without limitation the rights 88ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 98ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * copies of the Software, and to permit persons to whom the Software is 108ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * furnished to do so, subject to the following conditions: 118ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * 128ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * The above copyright notice and this permission notice shall be included in 138ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * all copies or substantial portions of the Software. 148ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * 158ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 168ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 178ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 188ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 198ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 208ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 218ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * THE SOFTWARE. 228ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman * 238ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman *===-----------------------------------------------------------------------=== 248ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman */ 258ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman 268ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman#ifndef __STDDEF_H 278ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman#define __STDDEF_H 288ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman 298da6bca896546cd98ad6aefaa3e9eba77736ea7bTed Kremenek#ifndef _PTRDIFF_T 308da6bca896546cd98ad6aefaa3e9eba77736ea7bTed Kremenek#define _PTRDIFF_T 318ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedmantypedef __typeof__(((int*)0)-((int*)0)) ptrdiff_t; 328da6bca896546cd98ad6aefaa3e9eba77736ea7bTed Kremenek#endif 3321259bafdc0e113c8bdce51d7911cc9880da1892Ted Kremenek#ifndef _SIZE_T 3421259bafdc0e113c8bdce51d7911cc9880da1892Ted Kremenek#define _SIZE_T 358ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedmantypedef __typeof__(sizeof(int)) size_t; 3621259bafdc0e113c8bdce51d7911cc9880da1892Ted Kremenek#endif 378ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman#ifndef __cplusplus 3821259bafdc0e113c8bdce51d7911cc9880da1892Ted Kremenek#ifndef _WCHAR_T 3921259bafdc0e113c8bdce51d7911cc9880da1892Ted Kremenek#define _WCHAR_T 406d6370ee10ddcd8cacc44c2d6796800c1325c732Chris Lattnertypedef __WCHAR_TYPE__ wchar_t; 418ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman#endif 4221259bafdc0e113c8bdce51d7911cc9880da1892Ted Kremenek#endif 438ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman 4421259bafdc0e113c8bdce51d7911cc9880da1892Ted Kremenek#undef NULL 45f8e61b371d085516b8b9b906099db3e0b915a7c0Anders Carlsson#ifdef __cplusplus 4608e46f97ec8c00cc1bfe87fcd014db211a878ffbNico Weber# if !defined(__MINGW32__) && !defined(_MSC_VER) 4708e46f97ec8c00cc1bfe87fcd014db211a878ffbNico Weber# define NULL __null 4808e46f97ec8c00cc1bfe87fcd014db211a878ffbNico Weber# else 4908e46f97ec8c00cc1bfe87fcd014db211a878ffbNico Weber# define NULL 0 5008e46f97ec8c00cc1bfe87fcd014db211a878ffbNico Weber# endif 51f8e61b371d085516b8b9b906099db3e0b915a7c0Anders Carlsson#else 5208e46f97ec8c00cc1bfe87fcd014db211a878ffbNico Weber# define NULL ((void*)0) 53f8e61b371d085516b8b9b906099db3e0b915a7c0Anders Carlsson#endif 54f8e61b371d085516b8b9b906099db3e0b915a7c0Anders Carlsson 558ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman#define offsetof(t, d) __builtin_offsetof(t, d) 568ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman 578ba179d4a39c79ae486472a5f413f763ffcc0739Eli Friedman#endif /* __STDDEF_H */ 5851f56fc36e6d441b6dd722cc09c4ac9f081c0974NAKAMURA Takumi 5951f56fc36e6d441b6dd722cc09c4ac9f081c0974NAKAMURA Takumi/* Some C libraries expect to see a wint_t here. Others (notably MinGW) will use 60fc8f0e14ad142ed811e90fbd9a30e419e301c717Chris Lattner__WINT_TYPE__ directly; accommodate both by requiring __need_wint_t */ 6151f56fc36e6d441b6dd722cc09c4ac9f081c0974NAKAMURA Takumi#if defined(__need_wint_t) 6251f56fc36e6d441b6dd722cc09c4ac9f081c0974NAKAMURA Takumi#if !defined(_WINT_T) 6351f56fc36e6d441b6dd722cc09c4ac9f081c0974NAKAMURA Takumi#define _WINT_T 6451f56fc36e6d441b6dd722cc09c4ac9f081c0974NAKAMURA Takumitypedef __WINT_TYPE__ wint_t; 6551f56fc36e6d441b6dd722cc09c4ac9f081c0974NAKAMURA Takumi#endif /* _WINT_T */ 6651f56fc36e6d441b6dd722cc09c4ac9f081c0974NAKAMURA Takumi#undef __need_wint_t 6751f56fc36e6d441b6dd722cc09c4ac9f081c0974NAKAMURA Takumi#endif /* __need_wint_t */ 68