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377a515b | 1 | /* Return maximum numeric value of X and Y. |
dff8da6b | 2 | Copyright (C) 1997-2024 Free Software Foundation, Inc. |
377a515b | 3 | This file is part of the GNU C Library. |
377a515b UD |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
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. | |
377a515b UD |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
377a515b | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
377a515b UD |
18 | |
19 | #include <math.h> | |
72ab1eae | 20 | #include <math-use-builtins.h> |
377a515b | 21 | |
847c9161 PM |
22 | FLOAT |
23 | M_DECL_FUNC (__fmax) (FLOAT x, FLOAT y) | |
377a515b | 24 | { |
72ab1eae AZ |
25 | #if M_USE_BUILTIN (FMAX) |
26 | return M_SUF (__builtin_fmax) (x, y); | |
27 | #else | |
f02bb000 JM |
28 | if (isgreaterequal (x, y)) |
29 | return x; | |
30 | else if (isless (x, y)) | |
31 | return y; | |
32 | else if (issignaling (x) || issignaling (y)) | |
33 | return x + y; | |
34 | else | |
35 | return isnan (y) ? x : y; | |
72ab1eae | 36 | #endif |
377a515b | 37 | } |
847c9161 PM |
38 | |
39 | declare_mgen_alias (__fmax, fmax); |