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ca34d7a7 | 1 | /* Set current rounding direction. |
d614a753 | 2 | Copyright (C) 1997-2020 Free Software Foundation, Inc. |
fd26970f UD |
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 | |
41bdb6e2 AJ |
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. | |
fd26970f UD |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
fd26970f | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
fd26970f | 18 | |
ca34d7a7 | 19 | #include <fenv.h> |
fd26970f | 20 | |
ca34d7a7 | 21 | int |
01238691 | 22 | __fesetround (int round) |
fd26970f | 23 | { |
ca34d7a7 UD |
24 | fenv_t tmp; |
25 | ||
26 | if ((round & ~__FE_ROUND_MASK) != 0) | |
27 | /* ROUND is no valid rounding mode. */ | |
8a94dfe4 | 28 | return 1; |
ca34d7a7 UD |
29 | |
30 | __fenv_stfsr (tmp); | |
31 | tmp &= ~__FE_ROUND_MASK; | |
32 | tmp |= round; | |
33 | __fenv_ldfsr (tmp); | |
34 | ||
8a94dfe4 | 35 | return 0; |
fd26970f | 36 | } |
01238691 JM |
37 | libm_hidden_def (__fesetround) |
38 | weak_alias (__fesetround, fesetround) | |
39 | libm_hidden_weak (fesetround) |