xfreopen need not depend on freopen-safer
[gnulib.git] / lib / unitypes.in.h
blob0a619dad33ddc7158d6aef1cb44a2f48c91e0f4f
1 /* Elementary types and macros for the GNU UniString library.
2 Copyright (C) 2002, 2005-2006, 2009-2019 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify it
5 under the terms of the GNU Lesser General Public License as published
6 by the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
17 #ifndef _UNITYPES_H
18 #define _UNITYPES_H
20 /* Get uint8_t, uint16_t, uint32_t. */
21 #include <stdint.h>
23 /* Type representing a Unicode character. */
24 typedef uint32_t ucs4_t;
26 /* Attribute of a function whose result depends only on the arguments
27 (not pointers!) and which has no side effects. */
28 #ifndef _UC_ATTRIBUTE_CONST
29 # if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
30 # define _UC_ATTRIBUTE_CONST __attribute__ ((__const__))
31 # else
32 # define _UC_ATTRIBUTE_CONST
33 # endif
34 #endif
36 /* Attribute of a function whose result depends only on the arguments
37 (possibly pointers) and global memory, and which has no side effects. */
38 #ifndef _UC_ATTRIBUTE_PURE
39 # if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
40 # define _UC_ATTRIBUTE_PURE __attribute__ ((__pure__))
41 # else
42 # define _UC_ATTRIBUTE_PURE
43 # endif
44 #endif
46 #endif /* _UNITYPES_H */