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/* Test nearbyint functions do not disable exception traps (bug 19228).
Copyright (C) 2015-2016 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
<http://www.gnu.org/licenses/>. */
#include <fenv.h>
#include <math.h>
#include <stdio.h>
#ifndef FE_INEXACT
# define FE_INEXACT 0
#endif
#define TEST_FUNC(NAME, FLOAT, SUFFIX) \
static int \
NAME (void) \
{ \
int result = 0; \
volatile FLOAT a, b __attribute__ ((unused)); \
a = 1.5; \
/* nearbyint must work when traps on "inexact" are enabled. */ \
b = nearbyint ## SUFFIX (a); \
/* And it must have left those traps enabled. */ \
if (fegetexcept () == FE_INEXACT) \
puts ("PASS: " #FLOAT); \
else \
{ \
puts ("FAIL: " #FLOAT); \
result = 1; \
} \
return result; \
}
TEST_FUNC (float_test, float, f)
TEST_FUNC (double_test, double, )
#ifndef NO_LONG_DOUBLE
TEST_FUNC (ldouble_test, long double, l)
#endif
static int
do_test (void)
{
if (feenableexcept (FE_INEXACT) == -1)
{
puts ("enabling FE_INEXACT traps failed, cannot test");
return 77;
}
int result = float_test ();
feenableexcept (FE_INEXACT);
result |= double_test ();
#ifndef NO_LONG_DOUBLE
feenableexcept (FE_INEXACT);
result |= ldouble_test ();
#endif
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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