mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-27 03:41:23 +08:00
150 lines
3.4 KiB
C
150 lines
3.4 KiB
C
/* Test femode_t functions: test handling of exception traps.
|
|
Copyright (C) 2016-2024 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
|
|
test_ee (int exc1, int exc2)
|
|
{
|
|
int result = 0;
|
|
printf ("testing %x %x\n", (unsigned int) exc1, (unsigned int) exc2);
|
|
|
|
fedisableexcept (FE_ALL_EXCEPT);
|
|
int ret = feenableexcept (exc1);
|
|
if (ret == -1)
|
|
{
|
|
if (EXCEPTION_ENABLE_SUPPORTED (exc1))
|
|
{
|
|
puts ("first feenableexcept failed unexpectedly");
|
|
result = 1;
|
|
}
|
|
else
|
|
puts ("first feenableexcept failed, cannot test");
|
|
return result;
|
|
}
|
|
femode_t saved;
|
|
ret = fegetmode (&saved);
|
|
if (ret != 0)
|
|
{
|
|
puts ("fegetmode failed");
|
|
result = 1;
|
|
return result;
|
|
}
|
|
fedisableexcept (FE_ALL_EXCEPT);
|
|
ret = feenableexcept (exc2);
|
|
if (ret == -1)
|
|
{
|
|
if (EXCEPTION_ENABLE_SUPPORTED (exc2))
|
|
{
|
|
puts ("second feenableexcept failed unexpectedly");
|
|
result = 1;
|
|
}
|
|
else
|
|
puts ("second feenableexcept failed, cannot test");
|
|
return result;
|
|
}
|
|
ret = fesetmode (&saved);
|
|
if (ret != 0)
|
|
{
|
|
puts ("fesetmode failed");
|
|
result = 1;
|
|
return result;
|
|
}
|
|
/* Verify that the set of enabled traps was restored. */
|
|
ret = fegetexcept ();
|
|
if (ret != exc1)
|
|
{
|
|
printf ("restored enabled traps %x not %x\n", (unsigned int) ret,
|
|
(unsigned int) exc1);
|
|
result = 1;
|
|
}
|
|
/* Likewise, with default modes. */
|
|
ret = fesetmode (FE_DFL_MODE);
|
|
if (ret != 0)
|
|
{
|
|
puts ("fesetmode (FE_DFL_MODE) failed");
|
|
result = 1;
|
|
return result;
|
|
}
|
|
ret = fegetexcept ();
|
|
if (ret != 0)
|
|
{
|
|
printf ("FE_DFL_MODE enabled traps %x not 0\n", (unsigned int) ret);
|
|
result = 1;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static int
|
|
test_e (int exc1)
|
|
{
|
|
int result = 0;
|
|
|
|
result |= test_ee (exc1, 0);
|
|
result |= test_ee (exc1, FE_ALL_EXCEPT);
|
|
#ifdef FE_DIVBYZERO
|
|
result |= test_ee (exc1, FE_DIVBYZERO);
|
|
#endif
|
|
#ifdef FE_INEXACT
|
|
result |= test_ee (exc1, FE_INEXACT);
|
|
#endif
|
|
#ifdef FE_INVALID
|
|
result |= test_ee (exc1, FE_INVALID);
|
|
#endif
|
|
#ifdef FE_OVERFLOW
|
|
result |= test_ee (exc1, FE_OVERFLOW);
|
|
#endif
|
|
#ifdef FE_UNDERFLOW
|
|
result |= test_ee (exc1, FE_UNDERFLOW);
|
|
#endif
|
|
|
|
return result;
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
int result = 0;
|
|
|
|
result |= test_e (0);
|
|
result |= test_e (FE_ALL_EXCEPT);
|
|
#ifdef FE_DIVBYZERO
|
|
result |= test_e (FE_DIVBYZERO);
|
|
#endif
|
|
#ifdef FE_INEXACT
|
|
result |= test_e (FE_INEXACT);
|
|
#endif
|
|
#ifdef FE_INVALID
|
|
result |= test_e (FE_INVALID);
|
|
#endif
|
|
#ifdef FE_OVERFLOW
|
|
result |= test_e (FE_OVERFLOW);
|
|
#endif
|
|
#ifdef FE_UNDERFLOW
|
|
result |= test_e (FE_UNDERFLOW);
|
|
#endif
|
|
|
|
return result;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|