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63551311 | 1 | /* Return current rounding direction. |
f7a9f785 | 2 | Copyright (C) 1997-2016 Free Software Foundation, Inc. |
63551311 UD |
3 | This file is part of the GNU C Library. |
4 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
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. | |
63551311 UD |
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 | |
41bdb6e2 | 14 | Lesser General Public License for more details. |
63551311 | 15 | |
41bdb6e2 | 16 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
17 | License along with the GNU C Library; if not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
63551311 UD |
19 | |
20 | #include <fenv.h> | |
21 | ||
22 | int | |
b93c2205 | 23 | __fegetround (void) |
63551311 UD |
24 | { |
25 | int cw; | |
26 | ||
27 | __asm__ ("fnstcw %0" : "=m" (*&cw)); | |
28 | ||
29 | return cw & 0xc00; | |
30 | } | |
b93c2205 JM |
31 | libm_hidden_def (__fegetround) |
32 | weak_alias (__fegetround, fegetround) | |
33 | libm_hidden_weak (fegetround) |