[thirdparty/glibc.git] / math / test-nan-const.c

/* Test nan functions do not have const attribute.  Bug 23277.
   Copyright (C) 2018-2019 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 <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>
Commit	Line	Data
48b12ed5	1	/* Test nan functions do not have const attribute. Bug 23277.
04277e02	2	Copyright (C) 2018-2019 Free Software Foundation, Inc.
48b12ed5 JM	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	#include <math.h>
	20	#include <string.h>
	21
	22	static int
	23	do_test (void)
	24	{
	25	char buf[2] = { '2', 0 };
	26	float a = nanf (buf);
	27	buf[0] = '3';
	28	float b = nanf (buf);
	29	return memcmp (&a, &b, sizeof (float)) == 0;
	30	}
	31
	32	#include <support/test-driver.c>