[thirdparty/glibc.git] / sysdeps / sparc / fpu / fedisblxcpt.c

/* Disable floating-point exceptions.
   Copyright (C) 2000-2014 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Jakub Jelinek <jakub@redhat.com>, 2000.

   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>

int
fedisableexcept (int excepts)
{
  fenv_t new_exc, old_exc;

  __fenv_stfsr (new_exc);

  old_exc = (new_exc >> 18) & FE_ALL_EXCEPT;
  new_exc &= ~(((fenv_t)excepts & FE_ALL_EXCEPT) << 18);

  __fenv_ldfsr (new_exc);

  return old_exc;
}
Commit	Line	Data
4c4b9518	1	/* Disable floating-point exceptions.
d4697bc9	2	Copyright (C) 2000-2014 Free Software Foundation, Inc.
4c4b9518 UD	3	This file is part of the GNU C Library.
	4	Contributed by Jakub Jelinek <jakub@redhat.com>, 2000.
	5
	6	The GNU C Library is free software; you can redistribute it and/or
41bdb6e2 AJ	7	modify it under the terms of the GNU Lesser General Public
	8	License as published by the Free Software Foundation; either
	9	version 2.1 of the License, or (at your option) any later version.
4c4b9518 UD	10
	11	The GNU C Library is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
41bdb6e2	14	Lesser General Public License for more details.
4c4b9518	15
41bdb6e2	16	You should have received a copy of the GNU Lesser General Public
59ba27a6 PE	17	License along with the GNU C Library; if not, see
59ba27a6 PE	18	<http://www.gnu.org/licenses/>. */
4c4b9518 UD	19
	20	#include <fenv.h>
	21
	22	int
	23	fedisableexcept (int excepts)
	24	{
	25	fenv_t new_exc, old_exc;
	26
	27	__fenv_stfsr (new_exc);
	28
	29	old_exc = (new_exc >> 18) & FE_ALL_EXCEPT;
	30	new_exc &= ~(((fenv_t)excepts & FE_ALL_EXCEPT) << 18);
	31
	32	__fenv_ldfsr (new_exc);
	33
	34	return old_exc;
	35	}