glibc/sysdeps/alpha/fpu/fraiseexcpt.c
Richard Henderson b7434f8243 * sysdeps/alpha/fpu/fraiseexcpt.c: Use get/set_fp_control instead of arithmetic instructions.
* sysdeps/alpha/fpu/s_ceil.c: Use round to -inf instead of playing
        with the fpcr.  Protect from INV exception.
        * sysdeps/alpha/fpu/s_ceilf.c: Likewise.
        * sysdeps/alpha/fpu/s_floor.c: Protect from INV exception.
        * sysdeps/alpha/fpu/s_floorf.c: Likewise.

        * sysdeps/alpha/fpu/s_copysign.c: New.
        * sysdeps/alpha/fpu/s_copysignf.c: New.
        * sysdeps/alpha/fpu/s_fabs.c: New.
        * sysdeps/alpha/fpu/s_fabsf.c: New.
        * sysdeps/alpha/fpu/s_rint.c: New.
        * sysdeps/alpha/fpu/s_rintf.c: New.
	* sysdeps/alpha/fpu/fraiseexcpt.c: Use get/set_fp_control instead
	of arithmetic instructions.

	* sysdeps/alpha/fpu/s_ceil.c: Use round to -inf instead of playing
	with the fpcr.  Protect from INV exception.
	* sysdeps/alpha/fpu/s_ceilf.c: Likewise.
	* sysdeps/alpha/fpu/s_floor.c: Protect from INV exception.
	* sysdeps/alpha/fpu/s_floorf.c: Likewise.

	* sysdeps/alpha/fpu/s_copysign.c: New.
	* sysdeps/alpha/fpu/s_copysignf.c: New.
	* sysdeps/alpha/fpu/s_fabs.c: New.
	* sysdeps/alpha/fpu/s_fabsf.c: New.
	* sysdeps/alpha/fpu/s_rint.c: New.
	* sysdeps/alpha/fpu/s_rintf.c: New.
2000-03-20 20:32:11 +00:00

44 lines
1.5 KiB
C

/* Raise given exceptions.
Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson <rth@tamu.edu>, 1997.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <fenv.h>
#include <math.h>
int
__feraiseexcept (int excepts)
{
unsigned long int tmp;
/* Get the current exception state. */
tmp = __ieee_get_fp_control ();
/* Set all the bits that were called for. */
tmp |= (excepts & FE_ALL_EXCEPT);
/* And store it back. */
__ieee_set_fp_control (tmp);
/* Success. */
return 0;
}
strong_alias (__feraiseexcept, __old_feraiseexcept)
symbol_version (__old_feraiseexcept, feraiseexcept, GLIBC_2.1);
default_symbol_version (__feraiseexcept, feraiseexcept, GLIBC_2.2);