glibc/sysdeps/sh/sh4/fpu/fesetround.c
Ulrich Drepper 9b8a727776 * include/fenv.h: Add libm_hidden_proto for fesetround and
feholdexcept.
	* sysdeps/alpha/fpu/feholdexcpt.c: Add libm_hidden_def.
	* sysdeps/alpha/fpu/fesetround.c: Likewise.
	* sysdeps/generic/feholdexcpt.c: Likewise.
	* sysdeps/generic/fesetround.c: Likewise.
	* sysdeps/i386/fpu/feholdexcpt.c: Likewise.
	* sysdeps/i386/fpu/fesetround.c: Likewise.
	* sysdeps/ia64/fpu/feholdexcpt.c: Likewise.
	* sysdeps/ia64/fpu/fesetround.c: Likewise.
	* sysdeps/powerpc/fpu/feholdexcpt.c: Likewise.
	* sysdeps/powerpc/fpu/fesetround.c: Likewise.
	* sysdeps/s390/fpu/feholdexcpt.c: Likewise.
	* sysdeps/s390/fpu/fesetround.c: Likewise.
	* sysdeps/sh/sh4/fpu/feholdexcpt.c: Likewise.
	* sysdeps/sh/sh4/fpu/fesetround.c: Likewise.
	* sysdeps/sparc/fpu/feholdexcpt.c: Likewise.
	* sysdeps/sparc/fpu/fesetround.c: Likewise.
	* sysdeps/x86_64/fpu/feholdexcpt.c: Likewise.
	* sysdeps/x86_64/fpu/fesetround.c: Likewise.
	* sysdeps/generic/s_significand.c (__significand): Use __ilogb not
	ilogb.
	* sysdeps/generic/s_significandf.c (__significandf): Use __ilogbf
	not ilogbf.
2005-07-08 18:54:49 +00:00

45 lines
1.3 KiB
C

/* Set current rounding direction.
Copyright (C) 1998, 2000, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Jaeger <aj@arthur.rhein-neckar.de>, 1998.
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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <fenv.h>
#include <fpu_control.h>
int
fesetround (int round)
{
unsigned int cw;
if ((round & ~0x3) != 0)
/* ROUND is no valid rounding mode. */
return 0;
/* Get current state. */
_FPU_GETCW (cw);
/* Set rounding bits. */
cw &= ~0x3;
cw |= round;
/* Set new state. */
_FPU_SETCW (cw);
return 1;
}
libm_hidden_def (fesetround)