/* Test of isnand() substitute.
- Copyright (C) 2007-2008 Free Software Foundation, Inc.
+ Copyright (C) 2007-2011 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
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
-/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
-
#include <config.h>
-#include "isnand.h"
-
-#include <limits.h>
#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#define ASSERT(expr) \
- do \
- { \
- if (!(expr)) \
- { \
- fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
- abort (); \
- } \
- } \
- while (0)
+#include "test-isnand.h"
-int
-main ()
-{
- /* Finite values. */
- ASSERT (!isnand (3.141));
- ASSERT (!isnand (3.141e30));
- ASSERT (!isnand (3.141e-30));
- ASSERT (!isnand (-2.718));
- ASSERT (!isnand (-2.718e30));
- ASSERT (!isnand (-2.718e-30));
- ASSERT (!isnand (0.0));
- ASSERT (!isnand (-0.0));
- /* Infinite values. */
- ASSERT (!isnand (1.0 / 0.0));
- ASSERT (!isnand (-1.0 / 0.0));
- /* Quiet NaN. */
- ASSERT (isnand (NAN));
-#if defined DBL_EXPBIT0_WORD && defined DBL_EXPBIT0_BIT
- /* Signalling NaN. */
- {
- #define NWORDS \
- ((sizeof (double) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
- typedef union { double value; unsigned int word[NWORDS]; } memory_double;
- memory_double m;
- m.value = NAN;
-# if DBL_EXPBIT0_BIT > 0
- m.word[DBL_EXPBIT0_WORD] ^= (unsigned int) 1 << (DBL_EXPBIT0_BIT - 1);
-# else
- m.word[DBL_EXPBIT0_WORD + (DBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
- ^= (unsigned int) 1 << (sizeof (unsigned int) * CHAR_BIT - 1);
-# endif
- m.word[DBL_EXPBIT0_WORD + (DBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
- |= (unsigned int) 1 << DBL_EXPBIT0_BIT;
- ASSERT (isnand (m.value));
- }
-#endif
- return 0;
-}