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Diffstat (limited to 'math/test-fetestexceptflag.c')
| -rw-r--r-- | math/test-fetestexceptflag.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/math/test-fetestexceptflag.c b/math/test-fetestexceptflag.c new file mode 100644 index 0000000..8122f26 --- /dev/null +++ b/math/test-fetestexceptflag.c @@ -0,0 +1,130 @@ +/* Test fetestexceptflag. + Copyright (C) 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 <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" |