125c28e83SPiotr Jasiukajtis /* 225c28e83SPiotr Jasiukajtis * CDDL HEADER START 325c28e83SPiotr Jasiukajtis * 425c28e83SPiotr Jasiukajtis * The contents of this file are subject to the terms of the 525c28e83SPiotr Jasiukajtis * Common Development and Distribution License (the "License"). 625c28e83SPiotr Jasiukajtis * You may not use this file except in compliance with the License. 725c28e83SPiotr Jasiukajtis * 825c28e83SPiotr Jasiukajtis * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 925c28e83SPiotr Jasiukajtis * or http://www.opensolaris.org/os/licensing. 1025c28e83SPiotr Jasiukajtis * See the License for the specific language governing permissions 1125c28e83SPiotr Jasiukajtis * and limitations under the License. 1225c28e83SPiotr Jasiukajtis * 1325c28e83SPiotr Jasiukajtis * When distributing Covered Code, include this CDDL HEADER in each 1425c28e83SPiotr Jasiukajtis * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 1525c28e83SPiotr Jasiukajtis * If applicable, add the following below this CDDL HEADER, with the 1625c28e83SPiotr Jasiukajtis * fields enclosed by brackets "[]" replaced with your own identifying 1725c28e83SPiotr Jasiukajtis * information: Portions Copyright [yyyy] [name of copyright owner] 1825c28e83SPiotr Jasiukajtis * 1925c28e83SPiotr Jasiukajtis * CDDL HEADER END 2025c28e83SPiotr Jasiukajtis */ 2125c28e83SPiotr Jasiukajtis 2225c28e83SPiotr Jasiukajtis /* 2325c28e83SPiotr Jasiukajtis * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 2425c28e83SPiotr Jasiukajtis */ 2525c28e83SPiotr Jasiukajtis /* 2625c28e83SPiotr Jasiukajtis * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 2725c28e83SPiotr Jasiukajtis * Use is subject to license terms. 2825c28e83SPiotr Jasiukajtis */ 2925c28e83SPiotr Jasiukajtis 30*ddc0e0b5SRichard Lowe #pragma weak __asinhl = asinhl 3125c28e83SPiotr Jasiukajtis 3225c28e83SPiotr Jasiukajtis #include "libm.h" 3325c28e83SPiotr Jasiukajtis 3425c28e83SPiotr Jasiukajtis static const long double 3525c28e83SPiotr Jasiukajtis ln2 = 6.931471805599453094172321214581765680755e-0001L, 3625c28e83SPiotr Jasiukajtis one = 1.0L, 3725c28e83SPiotr Jasiukajtis big = 1.0e+20L, 3825c28e83SPiotr Jasiukajtis tiny = 1.0e-20L; 3925c28e83SPiotr Jasiukajtis 4025c28e83SPiotr Jasiukajtis long double 4125c28e83SPiotr Jasiukajtis asinhl(long double x) { 4225c28e83SPiotr Jasiukajtis long double t, w; 4325c28e83SPiotr Jasiukajtis #ifndef lint 4425c28e83SPiotr Jasiukajtis volatile long double dummy; 4525c28e83SPiotr Jasiukajtis #endif 4625c28e83SPiotr Jasiukajtis 4725c28e83SPiotr Jasiukajtis w = fabsl(x); 4825c28e83SPiotr Jasiukajtis if (isnanl(x)) 4925c28e83SPiotr Jasiukajtis return (x + x); /* x is NaN */ 5025c28e83SPiotr Jasiukajtis if (w < tiny) { 5125c28e83SPiotr Jasiukajtis #ifndef lint 5225c28e83SPiotr Jasiukajtis dummy = x + big; /* inexact if x != 0 */ 5325c28e83SPiotr Jasiukajtis #endif 5425c28e83SPiotr Jasiukajtis return (x); /* tiny x */ 5525c28e83SPiotr Jasiukajtis } else if (w < big) { 5625c28e83SPiotr Jasiukajtis t = one / w; 5725c28e83SPiotr Jasiukajtis return (copysignl(log1pl(w + w / (t + sqrtl(one + t * t))), x)); 5825c28e83SPiotr Jasiukajtis } else 5925c28e83SPiotr Jasiukajtis return (copysignl(logl(w) + ln2, x)); 6025c28e83SPiotr Jasiukajtis } 61