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93eb85ce | 1 | /* Define __GLIBC_FLT_EVAL_METHOD. |
6d7e8eda | 2 | Copyright (C) 2016-2023 Free Software Foundation, Inc. |
93eb85ce JM |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
93eb85ce JM |
18 | |
19 | #ifndef _MATH_H | |
20 | # error "Never use <bits/flt-eval-method.h> directly; include <math.h> instead." | |
21 | #endif | |
22 | ||
23 | /* __GLIBC_FLT_EVAL_METHOD is the value of FLT_EVAL_METHOD used to | |
24 | determine the evaluation method typedefs such as float_t and | |
25 | double_t. It must be a value from C11 or TS 18661-3:2015, and not | |
26 | -1. */ | |
27 | ||
28 | /* In the default version of this header, follow __FLT_EVAL_METHOD__. | |
a225cb3e KC |
29 | If __FLT_EVAL_METHOD__ is not defined or set to -1, assume there is no |
30 | excess precision and use the value 0 (this is correct for most targets). */ | |
93eb85ce JM |
31 | |
32 | #ifdef __FLT_EVAL_METHOD__ | |
33 | # if __FLT_EVAL_METHOD__ == -1 | |
a225cb3e | 34 | # define __GLIBC_FLT_EVAL_METHOD 0 |
93eb85ce JM |
35 | # else |
36 | # define __GLIBC_FLT_EVAL_METHOD __FLT_EVAL_METHOD__ | |
37 | # endif | |
38 | #else | |
39 | # define __GLIBC_FLT_EVAL_METHOD 0 | |
40 | #endif |