]>
Commit | Line | Data |
---|---|---|
eaf5ad0b | 1 | /* Canonicalize floating-point representation. |
dff8da6b | 2 | Copyright (C) 2016-2024 Free Software Foundation, Inc. |
eaf5ad0b 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/>. */ |
eaf5ad0b JM |
18 | |
19 | #include <math.h> | |
20 | ||
21 | int | |
22 | M_DECL_FUNC (__canonicalize) (FLOAT *cx, const FLOAT *x) | |
23 | { | |
24 | FLOAT val = *x; | |
25 | /* For all binary formats supported by glibc, iscanonical only fails | |
26 | if the representation is not a valid representation of the type, | |
27 | so the only work to do is for signaling NaNs. */ | |
28 | if (!iscanonical (val)) | |
29 | return 1; | |
30 | if (issignaling (val)) | |
31 | *cx = val + val; | |
32 | else | |
33 | *cx = val; | |
34 | return 0; | |
35 | } | |
36 | ||
37 | declare_mgen_alias (__canonicalize, canonicalize) |