| /* Canonicalize floating-point representation. |
| Copyright (C) 2016-2018 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> |
| |
| int |
| M_DECL_FUNC (__canonicalize) (FLOAT *cx, const FLOAT *x) |
| { |
| FLOAT val = *x; |
| /* For all binary formats supported by glibc, iscanonical only fails |
| if the representation is not a valid representation of the type, |
| so the only work to do is for signaling NaNs. */ |
| if (!iscanonical (val)) |
| return 1; |
| if (issignaling (val)) |
| *cx = val + val; |
| else |
| *cx = val; |
| return 0; |
| } |
| |
| declare_mgen_alias (__canonicalize, canonicalize) |
