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 __isnanl = isnanl 3125c28e83SPiotr Jasiukajtis 3225c28e83SPiotr Jasiukajtis #include "libm.h" 3325c28e83SPiotr Jasiukajtis 3425c28e83SPiotr Jasiukajtis #if defined(__sparc) 3525c28e83SPiotr Jasiukajtis int isnanl(long double x)3625c28e83SPiotr Jasiukajtisisnanl(long double x) { 3725c28e83SPiotr Jasiukajtis int *px = (int *) &x; 3825c28e83SPiotr Jasiukajtis return ((px[0] & ~0x80000000) >= 0x7fff0000 && 3925c28e83SPiotr Jasiukajtis ((px[0] & ~0xffff0000) | px[1] | px[2] | px[3]) != 0); 4025c28e83SPiotr Jasiukajtis } 4125c28e83SPiotr Jasiukajtis #elif defined(__x86) 4225c28e83SPiotr Jasiukajtis int isnanl(long double x)4325c28e83SPiotr Jasiukajtisisnanl(long double x) { 4425c28e83SPiotr Jasiukajtis int *px = (int *) &x, t = px[2] & 0x7fff; 4525c28e83SPiotr Jasiukajtis #if defined(HANDLE_UNSUPPORTED) 4625c28e83SPiotr Jasiukajtis return ((t == 0x7fff && ((px[1] & ~0x80000000) | px[0]) != 0) || 4725c28e83SPiotr Jasiukajtis (t != 0 && (px[1] & 0x80000000) == 0)); 4825c28e83SPiotr Jasiukajtis #else 4925c28e83SPiotr Jasiukajtis return (t == 0x7fff && ((px[1] & ~0x80000000) | px[0]) != 0); 5025c28e83SPiotr Jasiukajtis #endif 5125c28e83SPiotr Jasiukajtis } 5225c28e83SPiotr Jasiukajtis #endif /* defined(__sparc) || defined(__x86) */ 53