1  /* Temporary library support for decimal floating point.
       2     Copyright (C) 2005-2023 Free Software Foundation, Inc.
       3  
       4     This file is part of GCC.
       5  
       6     GCC is free software; you can redistribute it and/or modify it
       7     under the terms of the GNU General Public License as published by
       8     the Free Software Foundation; either version 3, or (at your option)
       9     any later version.
      10  
      11     GCC is distributed in the hope that it will be useful, but WITHOUT
      12     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
      13     or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
      14     License for more details.
      15  
      16  Under Section 7 of GPL version 3, you are granted additional
      17  permissions described in the GCC Runtime Library Exception, version
      18  3.1, as published by the Free Software Foundation.
      19  
      20  You should have received a copy of the GNU General Public License and
      21  a copy of the GCC Runtime Library Exception along with this program;
      22  see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
      23  <http://www.gnu.org/licenses/>.  */
      24  
      25  #include <fenv.h>
      26  #include "dconfig.h"
      27  #include "decContext.h"
      28  #include "decExcept.h"
      29  
      30  /* Internal, non-documented functions for testing libgcc functions.
      31     This support is not sufficient for real use.  */
      32  
      33  static int __dfp_except_flags = 0;
      34  
      35  /* Clear the dummy exception flags.  */
      36  void
      37  __dfp_clear_except (void)
      38  {
      39    __dfp_except_flags = 0;
      40  }
      41  
      42  /* Return the dummy exception flags corresponding to the mask.  */
      43  int
      44  __dfp_test_except (int mask)
      45  {
      46    return __dfp_except_flags & mask;
      47  }
      48  
      49  /* Set dummy exception flags.  */
      50  void
      51  __dfp_raise_except (int flags)
      52  {
      53    __dfp_except_flags |= flags;
      54  }