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/* Test fegetexceptflag and fesetexceptflag: exception traps enabled.
Copyright (C) 2016-2023 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 <stdio.h>
#include <math-tests.h>
static int
do_test (void)
{
int result = 0;
fedisableexcept (FE_ALL_EXCEPT);
int ret = feraiseexcept (FE_ALL_EXCEPT);
if (ret != 0)
{
if (EXCEPTION_TESTS (float))
{
puts ("feraiseexcept (FE_ALL_EXCEPT) failed");
result = 1;
return result;
}
else
{
puts ("feraiseexcept (FE_ALL_EXCEPT) unsupported, cannot test");
return 77;
}
}
fexcept_t saved;
ret = fegetexceptflag (&saved, FE_ALL_EXCEPT);
if (ret != 0)
{
puts ("fegetexceptflag failed");
result = 1;
return result;
}
feclearexcept (FE_ALL_EXCEPT);
ret = feenableexcept (FE_ALL_EXCEPT);
if (!EXCEPTION_ENABLE_SUPPORTED (FE_ALL_EXCEPT) && (ret == -1))
{
puts ("feenableexcept (FE_ALL_EXCEPT) not supported, cannot test");
return 77;
}
else if (ret != 0)
{
puts ("feenableexcept (FE_ALL_EXCEPT) failed");
result = 1;
}
/* The test is that this does not cause exception traps. For architectures
where setting the exception might result in traps the function should
return a nonzero value. */
ret = fesetexceptflag (&saved, FE_ALL_EXCEPT);
_Static_assert (!(EXCEPTION_SET_FORCES_TRAP && !EXCEPTION_TESTS(float)),
"EXCEPTION_SET_FORCES_TRAP only makes sense if the "
"architecture suports exceptions");
if (ret != 0 && !EXCEPTION_SET_FORCES_TRAP)
{
puts ("fesetexceptflag failed");
result = 1;
}
feclearexcept (FE_ALL_EXCEPT);
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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