/* Test of isnanl() substitute.
- Copyright (C) 2007 Free Software Foundation, Inc.
+ Copyright (C) 2007-2013 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
+ 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 2, or (at your option)
- any later version.
+ 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
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, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
#include <config.h>
-#if HAVE_LONG_DOUBLE
+#include <math.h>
-#include "isnanl.h"
-
-#include <limits.h>
-#include <stdlib.h>
-
-#define ASSERT(expr) if (!(expr)) abort ();
-
-int
-main ()
-{
- /* Finite values. */
- ASSERT (!isnanl (3.141L));
- ASSERT (!isnanl (3.141e30L));
- ASSERT (!isnanl (3.141e-30L));
- ASSERT (!isnanl (-2.718L));
- ASSERT (!isnanl (-2.718e30L));
- ASSERT (!isnanl (-2.718e-30L));
- /* Infinite values. */
- ASSERT (!isnanl (1.0L / 0.0L));
- ASSERT (!isnanl (-1.0L / 0.0L));
- /* Quiet NaN. */
- ASSERT (isnanl (0.0L / 0.0L));
-#if defined LDBL_EXPBIT0_WORD && defined LDBL_EXPBIT0_BIT
- /* Signalling NaN. */
- {
- #define NWORDS \
- ((sizeof (long double) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
- typedef union { long double value; unsigned int word[NWORDS]; }
- memory_long_double;
- memory_long_double m;
- m.value = 0.0L / 0.0L;
-# if LDBL_EXPBIT0_BIT > 0
- m.word[LDBL_EXPBIT0_WORD] ^= (unsigned int) 1 << (LDBL_EXPBIT0_BIT - 1);
-# else
- m.word[LDBL_EXPBIT0_WORD + (LDBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
- ^= (unsigned int) 1 << (sizeof (unsigned int) * CHAR_BIT - 1);
-# endif
- m.word[LDBL_EXPBIT0_WORD + (LDBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
- |= (unsigned int) 1 << LDBL_EXPBIT0_BIT;
- ASSERT (isnanl (m.value));
- }
-#endif
- return 0;
-}
-
-#else
-
-int
-main ()
-{
- return 0;
-}
-
-#endif
+#include "test-isnanl.h"