summaryrefslogtreecommitdiff
path: root/math/test-nan-const.c
blob: 4ec8021cbb78381f7c4254e091f43ea980b7e9e1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
/* Test nan functions do not have const attribute.  Bug 23277.
   Copyright (C) 2018-2023 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
   <https://www.gnu.org/licenses/>.  */

#include <math.h>
#include <string.h>

static int
do_test (void)
{
  char buf[2] = { '2', 0 };
  float a = nanf (buf);
  buf[0] = '3';
  float b = nanf (buf);
  return memcmp (&a, &b, sizeof (float)) == 0;
}

#include <support/test-driver.c>