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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 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "@(#)ctanl.c 1.3 06/01/31 SMI"
#pragma weak ctanl = __ctanl
#include "libm.h"
#include "complex_wrapper.h"
ldcomplex
ctanl(ldcomplex z) {
long double x, y;
ldcomplex ans, ct;
x = LD_RE(z);
y = LD_IM(z);
LD_RE(z) = y;
LD_IM(z) = -x;
ct = ctanhl(z);
LD_RE(ans) = -LD_IM(ct);
LD_IM(ans) = LD_RE(ct);
return (ans);
}
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