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2b778ceb | 1 | /* Copyright (C) 1991-2021 Free Software Foundation, Inc. |
ff3b3d82 JM |
2 | This file is part of the GNU C Library. |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library 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. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
15 | License along with the GNU C Library; if not, see | |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
ff3b3d82 JM |
17 | |
18 | #ifndef _STDC_PREDEF_H | |
19 | #define _STDC_PREDEF_H 1 | |
20 | ||
21 | /* This header is separate from features.h so that the compiler can | |
22 | include it implicitly at the start of every compilation. It must | |
23 | not itself include <features.h> or any other header that includes | |
24 | <features.h> because the implicit include comes before any feature | |
25 | test macros that may be defined in a source file before it first | |
26 | explicitly includes a system header. GCC knows the name of this | |
27 | header in order to preinclude it. */ | |
28 | ||
1484e657 JM |
29 | /* glibc's intent is to support the IEC 559 math functionality, real |
30 | and complex. If the GCC (4.9 and later) predefined macros | |
31 | specifying compiler intent are available, use them to determine | |
32 | whether the overall intent is to support these features; otherwise, | |
33 | presume an older compiler has intent to support these features and | |
34 | define these macros by default. */ | |
35 | ||
36 | #ifdef __GCC_IEC_559 | |
37 | # if __GCC_IEC_559 > 0 | |
38 | # define __STDC_IEC_559__ 1 | |
39 | # endif | |
40 | #else | |
41 | # define __STDC_IEC_559__ 1 | |
42 | #endif | |
43 | ||
44 | #ifdef __GCC_IEC_559_COMPLEX | |
45 | # if __GCC_IEC_559_COMPLEX > 0 | |
46 | # define __STDC_IEC_559_COMPLEX__ 1 | |
47 | # endif | |
48 | #else | |
49 | # define __STDC_IEC_559_COMPLEX__ 1 | |
50 | #endif | |
ff3b3d82 | 51 | |
925fac77 MF |
52 | /* wchar_t uses Unicode 10.0.0. Version 10.0 of the Unicode Standard is |
53 | synchronized with ISO/IEC 10646:2017, fifth edition, plus | |
54 | the following additions from Amendment 1 to the fifth edition: | |
55 | - 56 emoji characters | |
56 | - 285 hentaigana | |
57 | - 3 additional Zanabazar Square characters */ | |
58 | #define __STDC_ISO_10646__ 201706L | |
ff3b3d82 JM |
59 | |
60 | #endif |