cprojl.c revision 25c28e83beb90e7c80452a7c818c5e6f73a07dc8
/*
* 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 cprojl = __cprojl
#include "libm.h" /* fabsl */
#include "complex_wrapper.h"
#include "longdouble.h"
/* INDENT OFF */
static const long double zero = 0.0L;
/* INDENT ON */
ldcomplex
cprojl(ldcomplex z) {
long double x, y;
int hy;
x = LD_RE(z);
y = LD_IM(z);
#if defined(__x86)
hy = ((int *) &y)[2] << 16;
#else
hy = ((int *) &y)[0];
#endif
if (isinfl(y)) {
LD_RE(z) = fabsl(y);
LD_IM(z) = hy >= 0 ? zero : -zero;
} else if (isinfl(x)) {
LD_RE(z) = fabsl(x);
LD_IM(z) = hy >= 0 ? zero : -zero;
}
return (z);
}