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b2cb5e02 PD |
1 | /* fpclassifyf(). RISC-V version. |
2 | Copyright (C) 2017-2018 Free Software Foundation, Inc. | |
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 | |
17 | <http://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #include <math.h> | |
20 | #include <math_private.h> | |
70e2ba33 | 21 | #include <fenv_private.h> |
b2cb5e02 PD |
22 | |
23 | int | |
24 | __fpclassifyf (float x) | |
25 | { | |
26 | int cls = _FCLASS (x); | |
27 | if (__builtin_expect (cls & _FCLASS_NORM, _FCLASS_NORM)) | |
28 | return FP_NORMAL; | |
29 | if (__builtin_expect (cls & _FCLASS_ZERO, _FCLASS_ZERO)) | |
30 | return FP_ZERO; | |
31 | if (__builtin_expect (cls & _FCLASS_SUBNORM, _FCLASS_SUBNORM)) | |
32 | return FP_SUBNORMAL; | |
33 | if (__builtin_expect (cls & _FCLASS_INF, _FCLASS_INF)) | |
34 | return FP_INFINITE; | |
35 | return FP_NAN; | |
36 | } | |
37 | libm_hidden_def (__fpclassifyf) |