| 1 | /* Elementary types and macros for the GNU UniString library.
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| 2 | Copyright (C) 2002, 2005-2006, 2009-2021 Free Software Foundation, Inc.
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| 3 |
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| 4 | This file is free software: you can redistribute it and/or modify
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| 5 | it under the terms of the GNU Lesser General Public License as
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| 6 | published by the Free Software Foundation; either version 2.1 of the
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| 7 | License, or (at your option) any later version.
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| 8 |
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| 9 | This file is distributed in the hope that it will be useful,
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 12 | GNU Lesser General Public License for more details.
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| 13 |
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| 14 | You should have received a copy of the GNU Lesser General Public License
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| 15 | along with this program. If not, see <https://www.gnu.org/licenses/>. */
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| 16 |
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| 17 | #ifndef _UNITYPES_H
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| 18 | #define _UNITYPES_H
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| 19 |
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| 20 | /* Get uint8_t, uint16_t, uint32_t. */
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| 21 | #include <stdint.h>
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| 22 |
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| 23 | /* Type representing a Unicode character. */
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| 24 | typedef uint32_t ucs4_t;
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| 25 |
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| 26 | /* Attribute of a function whose result depends only on the arguments
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| 27 | (not pointers!) and which has no side effects. */
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| 28 | #ifndef _UC_ATTRIBUTE_CONST
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| 29 | # if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95) || defined __clang__
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| 30 | # define _UC_ATTRIBUTE_CONST __attribute__ ((__const__))
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| 31 | # else
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| 32 | # define _UC_ATTRIBUTE_CONST
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| 33 | # endif
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| 34 | #endif
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| 35 |
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| 36 | /* Attribute of a function whose result depends only on the arguments
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| 37 | (possibly pointers) and global memory, and which has no side effects. */
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| 38 | #ifndef _UC_ATTRIBUTE_PURE
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| 39 | # if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) || defined __clang__
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| 40 | # define _UC_ATTRIBUTE_PURE __attribute__ ((__pure__))
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| 41 | # else
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| 42 | # define _UC_ATTRIBUTE_PURE
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| 43 | # endif
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| 44 | #endif
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| 45 |
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| 46 | /* Qualifier in a function declaration, that asserts that the caller must
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| 47 | pass a pointer to a different object in the specified pointer argument
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| 48 | than in the other pointer arguments. */
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| 49 | #ifndef _UC_RESTRICT
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| 50 | # if defined __restrict \
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| 51 | || 2 < __GNUC__ + (95 <= __GNUC_MINOR__) \
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| 52 | || __clang_major__ >= 3
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| 53 | # define _UC_RESTRICT __restrict
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| 54 | # elif 199901L <= __STDC_VERSION__ || defined restrict
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| 55 | # define _UC_RESTRICT restrict
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| 56 | # else
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| 57 | # define _UC_RESTRICT
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| 58 | # endif
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| 59 | #endif
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| 60 |
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| 61 | #endif /* _UNITYPES_H */
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