| /* Test femode_t functions: test handling of exception traps. |
| Copyright (C) 2016-2018 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_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" |