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1/* Define iscanonical macro.
2 Copyright (C) 2016-2019 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#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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