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glibc/math/test-nearbyint-except-2.c
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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" |