+++ /dev/null
-/* Test of rounding towards zero.
- Copyright (C) 2007 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 <http://www.gnu.org/licenses/>. */
-
-/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
-
-#include <config.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)
-
-/* The Compaq (ex-DEC) C 6.4 compiler chokes on the expression 0.0 / 0.0. */
-#ifdef __DECC
-static float
-NaN ()
-{
- static float zero = 0.0f;
- return zero / zero;
-}
-#else
-# define NaN() (0.0f / 0.0f)
-#endif
-
-int
-main ()
-{
- /* Zero. */
- ASSERT (truncf (0.0f) == 0.0f);
- ASSERT (truncf (-0.0f) == 0.0f);
- /* Positive numbers. */
- ASSERT (truncf (0.3f) == 0.0f);
- ASSERT (truncf (0.7f) == 0.0f);
- ASSERT (truncf (1.0f) == 1.0f);
- ASSERT (truncf (1.5f) == 1.0f);
- ASSERT (truncf (1.999f) == 1.0f);
- ASSERT (truncf (2.0f) == 2.0f);
- ASSERT (truncf (65535.99f) == 65535.0f);
- ASSERT (truncf (65536.0f) == 65536.0f);
- ASSERT (truncf (2.341e31f) == 2.341e31f);
- /* Negative numbers. */
- ASSERT (truncf (-0.3f) == 0.0f);
- ASSERT (truncf (-0.7f) == 0.0f);
- ASSERT (truncf (-1.0f) == -1.0f);
- ASSERT (truncf (-1.5f) == -1.0f);
- ASSERT (truncf (-1.999f) == -1.0f);
- ASSERT (truncf (-2.0f) == -2.0f);
- ASSERT (truncf (-65535.99f) == -65535.0f);
- ASSERT (truncf (-65536.0f) == -65536.0f);
- ASSERT (truncf (-2.341e31f) == -2.341e31f);
- /* Infinite numbers. */
- ASSERT (truncf (1.0f / 0.0f) == 1.0f / 0.0f);
- ASSERT (truncf (-1.0f / 0.0f) == -1.0f / 0.0f);
- /* NaNs. */
- ASSERT (isnan (truncf (NaN ())));
-
- return 0;
-}