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49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/* Test of fabs*() function family.
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Copyright (C) 2012-2017 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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static void
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test_function (void)
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{
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volatile DOUBLE x;
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DOUBLE y;
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/* Signed zero. */
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x = L_(0.0);
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y = FABS (x);
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ASSERT (y == L_(0.0));
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ASSERT (!signbit (y));
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x = MINUS_ZERO;
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y = FABS (x);
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ASSERT (y == L_(0.0));
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ASSERT (!signbit (y));
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/* Randomized tests. */
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{
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int i;
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for (i = 0; i < SIZEOF (RANDOM); i++)
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{
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x = L_(10.0) * RANDOM[i]; /* 0.0 <= x <= 10.0 */
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ASSERT (FABS (x) == x);
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ASSERT (FABS (- x) == x);
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}
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}
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}
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volatile DOUBLE x;
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DOUBLE y;
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