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/* Test nearbyint functions do not clear exceptions (bug 15491).
Copyright (C) 2015-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <fenv.h>
#include <math.h>
#include <stdbool.h>
#include <stdio.h>
#include <math-tests.h>
#ifndef FE_INVALID
# define FE_INVALID 0
#endif
static bool any_supported = false;
#define TEST_FUNC(NAME, FLOAT, SUFFIX) \
static int \
NAME (void) \
{ \
int result = 0; \
if (!EXCEPTION_TESTS (FLOAT)) \
return 0; \
any_supported = true; \
volatile FLOAT a, b __attribute__ ((unused)); \
a = 1.0; \
/* nearbyint must not clear already-raised exceptions. */ \
feraiseexcept (FE_ALL_EXCEPT); \
b = nearbyint ## SUFFIX (a); \
if (fetestexcept (FE_ALL_EXCEPT) == FE_ALL_EXCEPT) \
puts ("PASS: " #FLOAT); \
else \
{ \
puts ("FAIL: " #FLOAT); \
result = 1; \
} \
/* But it mustn't lose exceptions from sNaN arguments. */ \
if (SNAN_TESTS (FLOAT)) \
{ \
static volatile FLOAT snan = __builtin_nans ## SUFFIX (""); \
volatile FLOAT c __attribute__ ((unused)); \
feclearexcept (FE_ALL_EXCEPT); \
c = nearbyint ## SUFFIX (snan); \
if (fetestexcept (FE_INVALID) == FE_INVALID) \
puts ("PASS: " #FLOAT " sNaN"); \
else \
{ \
puts ("FAIL: " #FLOAT " sNaN"); \
result = 1; \
} \
} \
return result; \
}
TEST_FUNC (float_test, float, f)
TEST_FUNC (double_test, double, )
TEST_FUNC (ldouble_test, long double, l)
static int
do_test (void)
{
int result = float_test ();
result |= double_test ();
result |= ldouble_test ();
if (!any_supported)
return 77;
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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