| 1 | /* Temporary library support for decimal floating point. |
| 2 | Copyright (C) 2005-2013 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 | } |