1  /* Test fesetexcept: exception traps enabled.
       2     Copyright (C) 2016-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <fenv.h>
      20  #include <stdio.h>
      21  #include <math-tests.h>
      22  
      23  static int
      24  do_test (void)
      25  {
      26    int result = 0;
      27  
      28    fedisableexcept (FE_ALL_EXCEPT);
      29    int ret = feenableexcept (FE_ALL_EXCEPT);
      30    if (!EXCEPTION_ENABLE_SUPPORTED (FE_ALL_EXCEPT) && (ret == -1))
      31      {
      32        puts ("feenableexcept (FE_ALL_EXCEPT) not supported, cannot test");
      33        return 77;
      34      }
      35    else if (ret != 0)
      36      {
      37        puts ("feenableexcept (FE_ALL_EXCEPT) failed");
      38        result = 1;
      39        return result;
      40      }
      41  
      42    if (EXCEPTION_SET_FORCES_TRAP)
      43      {
      44        puts ("setting exceptions traps, cannot test on this architecture");
      45        return 77;
      46      }
      47    /* Verify fesetexcept does not cause exception traps.  */
      48    ret = fesetexcept (FE_ALL_EXCEPT);
      49    if (ret == 0)
      50      puts ("fesetexcept (FE_ALL_EXCEPT) succeeded");
      51    else
      52      {
      53        puts ("fesetexcept (FE_ALL_EXCEPT) failed");
      54        if (EXCEPTION_TESTS (float))
      55  	{
      56  	  puts ("failure of fesetexcept was unexpected");
      57  	  result = 1;
      58  	}
      59        else
      60  	puts ("failure of fesetexcept OK");
      61      }
      62    feclearexcept (FE_ALL_EXCEPT);
      63  
      64    return result;
      65  }
      66  
      67  #define TEST_FUNCTION do_test ()
      68  #include "../test-skeleton.c"