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/* Test fetestexceptflag.
Copyright (C) 2016-2021 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 <stdio.h>
#include <math-tests.h>
static int
test_one (int exc_test, int exc_set, int exc_save)
{
int result = 0;
printf ("Individual test: %x %x %x\n", (unsigned int) exc_test,
(unsigned int) exc_set, (unsigned int) exc_save);
feclearexcept (FE_ALL_EXCEPT);
int ret = fesetexcept (exc_set);
if (ret != 0)
{
puts ("fesetexcept failed");
if (exc_set == 0 || EXCEPTION_TESTS (float))
{
puts ("failure of fesetexcept was unexpected");
result = 1;
}
else
puts ("failure of fesetexcept OK, skipping further tests");
return result;
}
fexcept_t saved;
ret = fegetexceptflag (&saved, exc_save);
if (ret == 0)
puts ("fegetexceptflag succeeded");
else
{
puts ("fegetexceptflag failed");
result = 1;
return result;
}
ret = fetestexceptflag (&saved, exc_test);
if (ret == (exc_set & exc_test))
puts ("fetestexceptflag result correct");
else
{
printf ("fetestexceptflag returned %x, expected %x\n", ret,
exc_set & exc_test);
result = 1;
}
if (exc_save == FE_ALL_EXCEPT)
{
/* Also test fetestexceptflag testing all exceptions but
possibly with only some set. */
ret = fetestexceptflag (&saved, FE_ALL_EXCEPT);
if (ret == exc_set)
puts ("fetestexceptflag (FE_ALL_EXCEPT) result correct");
else
{
printf ("fetestexceptflag (FE_ALL_EXCEPT) returned %x, expected %x\n",
ret, exc_set);
result = 1;
}
}
return result;
}
static int
test_fetestexceptflag (int exc, const char *exc_name)
{
int result = 0;
printf ("Testing %s\n", exc_name);
/* Test each case of: whether this exception is set or clear;
whether other exceptions are set or clear; whether the whole
state is saved or just the state for this exception. */
result |= test_one (exc, 0, exc);
result |= test_one (exc, 0, FE_ALL_EXCEPT);
result |= test_one (exc, exc, exc);
result |= test_one (exc, exc, FE_ALL_EXCEPT);
result |= test_one (exc, FE_ALL_EXCEPT & ~exc, exc);
result |= test_one (exc, FE_ALL_EXCEPT & ~exc, FE_ALL_EXCEPT);
result |= test_one (exc, FE_ALL_EXCEPT, exc);
result |= test_one (exc, FE_ALL_EXCEPT, FE_ALL_EXCEPT);
return result;
}
static int
do_test (void)
{
int result = 0;
result |= test_fetestexceptflag (0, "0");
result |= test_fetestexceptflag (FE_ALL_EXCEPT, "FE_ALL_EXCEPT");
#ifdef FE_DIVBYZERO
result |= test_fetestexceptflag (FE_DIVBYZERO, "FE_DIVBYZERO");
#endif
#ifdef FE_INEXACT
result |= test_fetestexceptflag (FE_INEXACT, "FE_INEXACT");
#endif
#ifdef FE_INVALID
result |= test_fetestexceptflag (FE_INVALID, "FE_INVALID");
#endif
#ifdef FE_OVERFLOW
result |= test_fetestexceptflag (FE_OVERFLOW, "FE_OVERFLOW");
#endif
#ifdef FE_UNDERFLOW
result |= test_fetestexceptflag (FE_UNDERFLOW, "FE_UNDERFLOW");
#endif
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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