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70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
/* Test lgamma functions do not set signgam for ISO C.
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Copyright (C) 2015-2018 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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<http://www.gnu.org/licenses/>. */
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#undef _LIBC
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#undef __LIBC_INTERNAL_MATH_INLINES
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#undef _GNU_SOURCE
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#include <math.h>
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#include <stdio.h>
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#define INITVAL ((TYPE) -1 / 3)
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#if DO_INIT
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TYPE signgam = INITVAL;
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#else
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TYPE signgam;
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#endif
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#define RUN_TESTS(FUNC, TYPE) \
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do \
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{ \
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volatile TYPE a, b, c __attribute__ ((unused)); \
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a = 0.5; \
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b = -0.5; \
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signgam = INITVAL; \
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c = FUNC (a); \
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if (signgam == INITVAL) \
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puts ("PASS: " #FUNC " (0.5) setting signgam"); \
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else \
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{ \
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puts ("FAIL: " #FUNC " (0.5) setting signgam"); \
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result = 1; \
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} \
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signgam = INITVAL; \
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c = FUNC (b); \
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if (signgam == INITVAL) \
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puts ("PASS: " #FUNC " (-0.5) setting signgam"); \
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else \
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{ \
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puts ("FAIL: " #FUNC " (-0.5) setting signgam"); \
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result = 1; \
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} \
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} \
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while (0)
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int
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main (void)
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{
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int result = 0;
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RUN_TESTS (lgammaf, float);
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RUN_TESTS (lgamma, double);
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RUN_TESTS (lgammal, long double);
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return result;
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}
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