1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
/* Set floating-point environment exception handling. e500 version.
Copyright (C) 1997-2014 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <fenv_libc.h>
int
__fesetexceptflag (const fexcept_t *flagp, int excepts)
{
unsigned long old_spefscr, spefscr;
fexcept_t flag;
int excepts_spe = __fexcepts_to_spe (excepts);
/* Get the current state. */
old_spefscr = fegetenv_register ();
/* Ignore exceptions not listed in 'excepts'. */
flag = *flagp & excepts_spe;
/* Replace the exception status */
spefscr = (old_spefscr & ~excepts_spe) | flag;
/* Store the new status word (along with the rest of the environment). */
fesetenv_register (spefscr);
/* If the state of the "invalid" or "underflow" flag has changed,
inform the kernel. */
if (((spefscr ^ old_spefscr) & (SPEFSCR_FINVS | SPEFSCR_FUNFS)) != 0)
__fe_note_change ();
/* Success. */
return 0;
}
#include <shlib-compat.h>
#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
strong_alias (__fesetexceptflag, __old_fesetexceptflag)
compat_symbol (libm, __old_fesetexceptflag, fesetexceptflag, GLIBC_2_1);
#endif
versioned_symbol (libm, __fesetexceptflag, fesetexceptflag, GLIBC_2_2);
|
