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5b132ec2b7
C2Y adds unsigned versions of the abs functions (see C2Y draft N3467 and proposal N3349). Tested for x86_64. Signed-off-by: Lenard Mollenkopf <glibc@lenardmollenkopf.de>
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/* Basic tests for uabs.
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Copyright (C) 2025 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <limits.h>
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#include <stdlib.h>
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#include <support/check.h>
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#define LARGE_PRIME 49999
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static int do_test (void)
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{
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int i;
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TEST_COMPARE (uabs (INT_MAX), INT_MAX);
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TEST_COMPARE (uabs (INT_MIN), (unsigned int)INT_MAX + 1);
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TEST_COMPARE (uabs (-1), 1);
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TEST_COMPARE (uabs (0), 0);
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TEST_COMPARE (uabs (1), 1);
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for (i = INT_MIN + 1; i < 0; i += LARGE_PRIME)
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TEST_COMPARE (uabs (i), -i);
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for (i = 0; i < INT_MAX - LARGE_PRIME; i += LARGE_PRIME)
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TEST_COMPARE (uabs (i), i);
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return EXIT_SUCCESS;
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}
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#include <support/test-driver.c>
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