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| 1 | /* Define iscanonical macro. |
|---|---|
| 2 | Copyright (C) 2016-2022 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 | <https://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #ifndef _MATH_H |
| 20 | # error "Never use <bits/iscanonical.h> directly; include <math.h> instead." |
| 21 | #endif |
| 22 | |
| 23 | /* Return nonzero value if X is canonical. By default, we only have |
| 24 | IEEE interchange binary formats, in which all values are canonical, |
| 25 | but the argument must still be converted to its semantic type for |
| 26 | any exceptions arising from the conversion, before being |
| 27 | discarded. */ |
| 28 | #define iscanonical(x) ((void) (__typeof (x)) (x), 1) |
| 29 |
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