[deliverable/binutils-gdb.git] / gnulib / import / isnand-nolibm.h

/* Test for NaN that does not need libm.
   Copyright (C) 2007-2019 Free Software Foundation, Inc.

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */

#if HAVE_ISNAND_IN_LIBC
/* Get declaration of isnan macro.  */
# include <math.h>
# if __GNUC__ >= 4
   /* GCC 4.0 and newer provides three built-ins for isnan.  */
#  undef isnand
#  define isnand(x) __builtin_isnan ((double)(x))
# else
#  undef isnand
#  define isnand(x) isnan ((double)(x))
# endif
#else
/* Test whether X is a NaN.  */
# undef isnand
# define isnand rpl_isnand
extern int isnand (double x);
#endif
Commit	Line	Data
88b48903	1	/* Test for NaN that does not need libm.
c0c3707f	2	Copyright (C) 2007-2019 Free Software Foundation, Inc.
88b48903 WN	3
	4	This program is free software: you can redistribute it and/or modify
	5	it under the terms of the GNU General Public License as published by
	6	the Free Software Foundation; either version 3 of the License, or
	7	(at your option) any later version.
	8
	9	This program is distributed in the hope that it will be useful,
	10	but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	GNU General Public License for more details.
	13
	14	You should have received a copy of the GNU General Public License
c0c3707f	15	along with this program. If not, see <https://www.gnu.org/licenses/>. */
88b48903 WN	16
	17	#if HAVE_ISNAND_IN_LIBC
	18	/* Get declaration of isnan macro. */
	19	# include <math.h>
	20	# if __GNUC__ >= 4
	21	/* GCC 4.0 and newer provides three built-ins for isnan. */
	22	# undef isnand
	23	# define isnand(x) __builtin_isnan ((double)(x))
	24	# else
	25	# undef isnand
	26	# define isnand(x) isnan ((double)(x))
	27	# endif
	28	#else
	29	/* Test whether X is a NaN. */
	30	# undef isnand
	31	# define isnand rpl_isnand
	32	extern int isnand (double x);
	33	#endif