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91a1f3fe JM |
1 | /* Return current rounding mode as correct value for FLT_ROUNDS. e500 |
2 | version. | |
b168057a | 3 | Copyright (C) 2013-2015 Free Software Foundation, Inc. |
91a1f3fe JM |
4 | This file is part of the GNU C Library. |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
17 | License along with the GNU C Library. If not, see | |
18 | <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include <fenv_libc.h> | |
21 | #include <stdlib.h> | |
22 | ||
23 | int | |
24 | __flt_rounds (void) | |
25 | { | |
26 | switch (fegetenv_register () & SPEFSCR_FRMC) | |
27 | { | |
28 | case FE_TOWARDZERO: | |
29 | return 0; | |
30 | case FE_TONEAREST: | |
31 | return 1; | |
32 | case FE_UPWARD: | |
33 | return 2; | |
34 | case FE_DOWNWARD: | |
35 | return 3; | |
36 | default: | |
37 | abort (); | |
38 | } | |
39 | } |