mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-26 15:00:06 +00:00
04277e02d7
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/* Set floating-point environment exception handling.
|
|
Copyright (C) 1997-2019 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.h>
|
|
#include <fpu_control.h>
|
|
#include <arm-features.h>
|
|
|
|
|
|
int
|
|
fesetexceptflag (const fexcept_t *flagp, int excepts)
|
|
{
|
|
fpu_control_t fpscr, new_fpscr;
|
|
|
|
/* Fail if a VFP unit isn't present unless nothing needs to be done. */
|
|
if (!ARM_HAVE_VFP)
|
|
return (excepts != 0);
|
|
|
|
_FPU_GETCW (fpscr);
|
|
excepts &= FE_ALL_EXCEPT;
|
|
|
|
/* Set the desired exception mask. */
|
|
new_fpscr = fpscr & ~excepts;
|
|
new_fpscr |= *flagp & excepts;
|
|
|
|
/* Write new exception flags if changed. */
|
|
if (new_fpscr != fpscr)
|
|
_FPU_SETCW (new_fpscr);
|
|
|
|
return 0;
|
|
}
|