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6d4752d8 | 1 | /* Install given floating-point environment. |
76f2646f | 2 | Copyright (C) 1998, 1999, 2000, 2002 Free Software Foundation, Inc. |
6d4752d8 | 3 | This file is part of the GNU C Library. |
b4f99a5d | 4 | Contributed by Andreas Jaeger <aj@suse.de>, 1998. |
6d4752d8 UD |
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. | |
6d4752d8 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. |
6d4752d8 | 15 | |
41bdb6e2 AJ |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, write to the Free | |
18 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
19 | 02111-1307 USA. */ | |
6d4752d8 UD |
20 | |
21 | #include <fenv.h> | |
22 | #include <fpu_control.h> | |
23 | ||
63ae7b63 | 24 | int |
c652a2ed | 25 | fesetenv (const fenv_t *envp) |
6d4752d8 | 26 | { |
763f7e8b AJ |
27 | fpu_control_t cw; |
28 | ||
29 | /* Read first current state to flush fpu pipeline. */ | |
30 | _FPU_GETCW (cw); | |
31 | ||
6d4752d8 UD |
32 | if (envp == FE_DFL_ENV) |
33 | _FPU_SETCW (_FPU_DEFAULT); | |
82ae4e97 AJ |
34 | else if (envp == FE_NOMASK_ENV) |
35 | _FPU_SETCW (_FPU_IEEE); | |
6d4752d8 | 36 | else |
33d1a2c5 | 37 | _FPU_SETCW (envp->__fp_control_register); |
63ae7b63 UD |
38 | |
39 | /* Success. */ | |
40 | return 0; | |
6d4752d8 | 41 | } |
dc312cba AJ |
42 | |
43 | libm_hidden_def (fesetenv) |