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c72aa4a2 | 1 | /* Install given floating-point environment and raise exceptions. |
2e1639a8 | 2 | Copyright (C) 1997,1999-2001,2010 Free Software Foundation, Inc. |
c72aa4a2 UD |
3 | This file is part of the GNU C Library. |
4 | Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
3214b89b 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. | |
c72aa4a2 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 | |
3214b89b | 14 | Lesser General Public License for more details. |
c72aa4a2 | 15 | |
3214b89b 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. */ | |
c72aa4a2 UD |
20 | |
21 | #include <fenv.h> | |
22 | ||
146bade7 UD |
23 | int |
24 | __feupdateenv (const fenv_t *envp) | |
c72aa4a2 UD |
25 | { |
26 | fexcept_t fpsr; | |
27 | ||
28 | /* Save current exceptions. */ | |
29 | __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr)); | |
30 | fpsr &= FE_ALL_EXCEPT; | |
31 | ||
32 | /* Install new environment. */ | |
33 | fesetenv (envp); | |
34 | ||
35 | /* Raise the saved exception. Incidently for us the implementation | |
36 | defined format of the values in objects of type fexcept_t is the | |
37 | same as the ones specified using the FE_* constants. */ | |
38 | feraiseexcept ((int) fpsr); | |
146bade7 UD |
39 | |
40 | /* Success. */ | |
41 | return 0; | |
c72aa4a2 | 42 | } |
60446d7a RM |
43 | |
44 | #include <shlib-compat.h> | |
45 | #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2) | |
146bade7 | 46 | strong_alias (__feupdateenv, __old_feupdateenv) |
60446d7a RM |
47 | compat_symbol (libm, __old_feupdateenv, feupdateenv, GLIBC_2_1); |
48 | #endif | |
49 | ||
2e1639a8 | 50 | libm_hidden_ver (__feupdateenv, feupdateenv) |
60446d7a | 51 | versioned_symbol (libm, __feupdateenv, feupdateenv, GLIBC_2_2); |