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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* These functions return the prevailing rounding mode per ANSI C spec:
* 0: toward zero
* 1: to nearest <<< default
* 2: toward positive infinity
* 3: toward negative infinity
* -1: indeterminable <<< never returned
*/
#include "lint.h"
#include <sys/types.h>
#include <floatingpoint.h>
#include "libc.h"
#if defined(__sparc)
int
__flt_rounds(void)
{
switch (_QgetRD()) {
case fp_tozero:
return (0);
case fp_positive:
return (2);
case fp_negative:
return (3);
}
return (1);
}
#elif defined(__i386) || defined(__amd64)
int
__fltrounds(void)
{
switch (__xgetRD()) {
case fp_tozero:
return (0);
case fp_positive:
return (2);
case fp_negative:
return (3);
}
return (1);
}
#else
#error Unknown architecture
#endif
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