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f5bc1778 DJ |
1 | /* Temporary library support for decimal floating point. |
2 | Copyright (C) 2005, 2006 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 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | In addition to the permissions in the GNU General Public License, the | |
12 | Free Software Foundation gives you unlimited permission to link the | |
13 | compiled version of this file into combinations with other programs, | |
14 | and to distribute those combinations without any restriction coming | |
15 | from the use of this file. (The General Public License restrictions | |
16 | do apply in other respects; for example, they cover modification of | |
17 | the file, and distribution when not linked into a combine | |
18 | executable.) | |
19 | ||
20 | GCC is distributed in the hope that it will be useful, but WITHOUT | |
21 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
22 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
23 | License for more details. | |
24 | ||
25 | You should have received a copy of the GNU General Public License | |
26 | along with GCC; see the file COPYING. If not, write to the Free | |
27 | Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA | |
28 | 02110-1301, USA. */ | |
29 | ||
30 | #include <fenv.h> | |
31 | #include "config.h" | |
32 | #include "decContext.h" | |
33 | #include "decExcept.h" | |
34 | ||
35 | /* Internal, non-documented functions for testing libgcc functions. | |
36 | This support is not sufficient for real use. */ | |
37 | ||
38 | static int __dfp_except_flags = 0; | |
39 | ||
40 | /* Clear the dummy exception flags. */ | |
41 | void | |
42 | __dfp_clear_except (void) | |
43 | { | |
44 | __dfp_except_flags = 0; | |
45 | } | |
46 | ||
47 | /* Return the dummy exception flags corresponding to the mask. */ | |
48 | int | |
49 | __dfp_test_except (int mask) | |
50 | { | |
51 | return __dfp_except_flags & mask; | |
52 | } | |
53 | ||
54 | /* Set dummy exception flags. */ | |
55 | void | |
56 | __dfp_raise_except (int flags) | |
57 | { | |
58 | __dfp_except_flags |= flags; | |
59 | } |