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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 2011 Nexenta Systems, Inc. All rights reserved.
*/
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma weak __lroundf = lroundf
#include <sys/isa_defs.h> /* _ILP32 */
#include "libm.h"
#if defined(_ILP32)
long
lroundf(float x) {
union {
unsigned i;
float f;
} xx;
unsigned hx, sx, i;
xx.f = x;
hx = xx.i & ~0x80000000;
sx = xx.i & 0x80000000;
if (hx < 0x4b000000) { /* |x| < 2^23 */
if (hx < 0x3f800000) { /* |x| < 1 */
if (hx >= 0x3f000000)
return (sx ? -1L : 1L);
return (0L);
}
/* round x at the integer bit */
i = 1 << (0x95 - (hx >> 23));
xx.i = (xx.i + i) & ~((i << 1) - 1);
return ((long) xx.f);
}
/* now x is nan, inf, or integral */
return ((long) x);
}
#else
#error Unsupported architecture
#endif /* defined(_ILP32) */
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