1 /* Clear given exceptions in current floating-point environment.
2 Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
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
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If not,
17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
20 #include <fenv_libc.h>
24 __feclearexcept (int excepts
)
28 /* Get the current state. */
29 u
.fenv
= fegetenv_register ();
31 /* Clear the relevant bits. */
32 u
.l
[1] = u
.l
[1] & ~((-(excepts
>> (31 - FPSCR_VX
) & 1) & FE_ALL_INVALID
)
33 | (excepts
& FPSCR_STICKY_BITS
));
35 /* Put the new state in effect. */
36 fesetenv_register (u
.fenv
);
41 strong_alias (__feclearexcept
, __old_feclearexcept
)
42 symbol_version (__old_feclearexcept
, feclearexcept
, GLIBC_2
.1
);
43 default_symbol_version (__feclearexcept
, feclearexcept
, GLIBC_2
.2
);