]>
git.ipfire.org Git - thirdparty/glibc.git/blob - ports/sysdeps/am33/fpu/fclrexcpt.c
1 /* Clear given exceptions in current floating-point environment.
2 Copyright (C) 1998-2012 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Alexandre Oliva <aoliva@redhat.com>
5 based on corresponding file in the MIPS port.
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public
18 License along with the GNU C Library. If not, see
19 <http://www.gnu.org/licenses/>. */
22 #include <fenv_libc.h>
23 #include <fpu_control.h>
24 #include <shlib-compat.h>
27 __feclearexcept (int excepts
)
31 /* Mask out unsupported bits/exceptions. */
32 excepts
&= FE_ALL_EXCEPT
;
34 /* Read the complete control word. */
37 /* Clear exception flag bits and cause bits. EF bits are cleared by
38 assigning 1 to them (and there's no way to set them); other bits
39 are copied normally. */
41 cw
&= ~((excepts
<< CAUSE_SHIFT
) | FE_ALL_EXCEPT
);
44 /* Put the new data in effect. */
51 libm_hidden_ver (__feclearexcept
, feclearexcept
)
52 versioned_symbol (libm
, __feclearexcept
, feclearexcept
, GLIBC_2_2
);