10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  24  */
  25 /*
  26  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  27  * Use is subject to license terms.
  28  */
  29 
  30 #pragma weak catanh = __catanh
  31 
  32 /* INDENT OFF */
  33 /*
  34  * z := x + iy
  35  * catanh(z)    = -i catan(iz)
  36  *              = -i catan(-y+ix)
  37  *              = (Im(catan(-y+ix)), -Re(catan(-y+ix)))
  38  */
  39 /* INDENT ON */
  40 
  41 #include "libm.h"
  42 #include "complex_wrapper.h"
  43 
  44 dcomplex
  45 catanh(dcomplex z) {
  46         double x, y;
  47         dcomplex ans, ct;
  48 
  49         x = D_RE(z);
  50         y = D_IM(z);

  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  24  */
  25 /*
  26  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  27  * Use is subject to license terms.
  28  */
  29 
  30 #pragma weak __catanh = catanh
  31 
  32 /* INDENT OFF */
  33 /*
  34  * z := x + iy
  35  * catanh(z)    = -i catan(iz)
  36  *              = -i catan(-y+ix)
  37  *              = (Im(catan(-y+ix)), -Re(catan(-y+ix)))
  38  */
  39 /* INDENT ON */
  40 
  41 #include "libm.h"
  42 #include "complex_wrapper.h"
  43 
  44 dcomplex
  45 catanh(dcomplex z) {
  46         double x, y;
  47         dcomplex ans, ct;
  48 
  49         x = D_RE(z);
  50         y = D_IM(z);