1  /* Test fegetenv preserves exception mask (bug 16198).
       2     Copyright (C) 2014-2023 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  
      22  static int
      23  do_test (void)
      24  {
      25  #if FE_ALL_EXCEPT
      26    fenv_t env;
      27  
      28    if (feenableexcept (FE_INVALID) != 0)
      29      {
      30        puts ("feenableexcept (FE_INVALID) failed, cannot test");
      31        return 0;
      32      }
      33  
      34    if (fegetenv (&env) != 0)
      35      {
      36        puts ("fegetenv failed, cannot test");
      37        return 0;
      38      }
      39  
      40    int ret = fegetexcept ();
      41    if (ret == FE_INVALID)
      42      {
      43        puts ("fegetenv preserved exception mask, OK");
      44        return 0;
      45      }
      46    else
      47      {
      48        printf ("fegetexcept returned %d, expected %d\n", ret, FE_INVALID);
      49        return 1;
      50      }
      51  #else
      52    puts ("No exceptions defined, cannot test");
      53    return 0;
      54  #endif
      55  }
      56  
      57  #define TEST_FUNCTION do_test ()
      58  #include "../test-skeleton.c"