| /* fpclassify(). RISC-V version. |
| Copyright (C) 2017-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <math.h> |
| #include <math_private.h> |
| |
| int |
| __fpclassify (double x) |
| { |
| int cls = _FCLASS (x); |
| if (__builtin_expect (cls & _FCLASS_NORM, _FCLASS_NORM)) |
| return FP_NORMAL; |
| if (__builtin_expect (cls & _FCLASS_ZERO, _FCLASS_ZERO)) |
| return FP_ZERO; |
| if (__builtin_expect (cls & _FCLASS_SUBNORM, _FCLASS_SUBNORM)) |
| return FP_SUBNORMAL; |
| if (__builtin_expect (cls & _FCLASS_INF, _FCLASS_INF)) |
| return FP_INFINITE; |
| return FP_NAN; |
| } |
| libm_hidden_def (__fpclassify) |
