1 /* Install given floating-point environment and raise exceptions.
2 Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Library General Public License as
8 published by the Free Software Foundation; either version 2 of the
9 License, or (at your option) any later version.
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 Library General Public License for more details.
16 You should have received a copy of the GNU Library General Public
17 License along with the GNU C Library; see the file COPYING.LIB. If not,
18 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 #include <fenv_libc.h>
24 __feupdateenv (const fenv_t *envp)
26 fenv_union_t old, new;
28 /* Save the currently set exceptions. */
30 old.fenv = fegetenv_register ();
32 /* Copy the set exceptions from `old' to `new'. */
33 new.l[1] = (new.l[1] & 0xE00000FF) | (old.l[1] & 0x1FFFFF00);
35 /* Atomically enable and raise (if appropriate) exceptions set in `new'. */
36 fesetenv_register (new.fenv);
41 strong_alias (__feupdateenv, __old_feupdateenv)
42 symbol_version (__old_feupdateenv, feupdateenv, GLIBC_2.1);
43 default_symbol_version (__feupdateenv, feupdateenv, GLIBC_2.2);