1 /* Clear given exceptions in current floating-point environment.
2 Copyright (C) 1997-2015 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 Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the 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 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
19 #include <fenv_libc.h>
23 __feclearexcept (int excepts
)
27 /* Get the current state. */
28 u
.fenv
= fegetenv_register ();
30 /* Clear the relevant bits. */
31 n
.l
= u
.l
& ~((-(excepts
>> (31 - FPSCR_VX
) & 1) & FE_ALL_INVALID
)
32 | (excepts
& FPSCR_STICKY_BITS
));
34 /* Put the new state in effect. */
36 fesetenv_register (n
.fenv
);
42 #include <shlib-compat.h>
43 #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
44 strong_alias (__feclearexcept
, __old_feclearexcept
)
45 compat_symbol (libm
, __old_feclearexcept
, feclearexcept
, GLIBC_2_1
);
48 libm_hidden_ver (__feclearexcept
, feclearexcept
)
49 versioned_symbol (libm
, __feclearexcept
, feclearexcept
, GLIBC_2_2
);