1*25c28e83SPiotr Jasiukajtis /* 2*25c28e83SPiotr Jasiukajtis * CDDL HEADER START 3*25c28e83SPiotr Jasiukajtis * 4*25c28e83SPiotr Jasiukajtis * The contents of this file are subject to the terms of the 5*25c28e83SPiotr Jasiukajtis * Common Development and Distribution License (the "License"). 6*25c28e83SPiotr Jasiukajtis * You may not use this file except in compliance with the License. 7*25c28e83SPiotr Jasiukajtis * 8*25c28e83SPiotr Jasiukajtis * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*25c28e83SPiotr Jasiukajtis * or http://www.opensolaris.org/os/licensing. 10*25c28e83SPiotr Jasiukajtis * See the License for the specific language governing permissions 11*25c28e83SPiotr Jasiukajtis * and limitations under the License. 12*25c28e83SPiotr Jasiukajtis * 13*25c28e83SPiotr Jasiukajtis * When distributing Covered Code, include this CDDL HEADER in each 14*25c28e83SPiotr Jasiukajtis * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*25c28e83SPiotr Jasiukajtis * If applicable, add the following below this CDDL HEADER, with the 16*25c28e83SPiotr Jasiukajtis * fields enclosed by brackets "[]" replaced with your own identifying 17*25c28e83SPiotr Jasiukajtis * information: Portions Copyright [yyyy] [name of copyright owner] 18*25c28e83SPiotr Jasiukajtis * 19*25c28e83SPiotr Jasiukajtis * CDDL HEADER END 20*25c28e83SPiotr Jasiukajtis */ 21*25c28e83SPiotr Jasiukajtis 22*25c28e83SPiotr Jasiukajtis /* 23*25c28e83SPiotr Jasiukajtis * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 24*25c28e83SPiotr Jasiukajtis */ 25*25c28e83SPiotr Jasiukajtis /* 26*25c28e83SPiotr Jasiukajtis * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 27*25c28e83SPiotr Jasiukajtis * Use is subject to license terms. 28*25c28e83SPiotr Jasiukajtis */ 29*25c28e83SPiotr Jasiukajtis 30*25c28e83SPiotr Jasiukajtis #pragma weak nan = __nan 31*25c28e83SPiotr Jasiukajtis 32*25c28e83SPiotr Jasiukajtis /* 33*25c28e83SPiotr Jasiukajtis * nan(c) returns a NaN. This implementation ignores c. 34*25c28e83SPiotr Jasiukajtis */ 35*25c28e83SPiotr Jasiukajtis 36*25c28e83SPiotr Jasiukajtis #include "libm.h" 37*25c28e83SPiotr Jasiukajtis #include <sys/isa_defs.h> 38*25c28e83SPiotr Jasiukajtis 39*25c28e83SPiotr Jasiukajtis #if defined(__sparc) 40*25c28e83SPiotr Jasiukajtis 41*25c28e83SPiotr Jasiukajtis static const union { 42*25c28e83SPiotr Jasiukajtis unsigned i[2]; 43*25c28e83SPiotr Jasiukajtis double d; 44*25c28e83SPiotr Jasiukajtis } __nan_union = { 0x7fffffff, 0xffffffff }; 45*25c28e83SPiotr Jasiukajtis 46*25c28e83SPiotr Jasiukajtis #elif defined(__i386) || defined(__amd64) 47*25c28e83SPiotr Jasiukajtis 48*25c28e83SPiotr Jasiukajtis static const union { 49*25c28e83SPiotr Jasiukajtis unsigned i[2]; 50*25c28e83SPiotr Jasiukajtis double d; 51*25c28e83SPiotr Jasiukajtis } __nan_union = { 0xffffffff, 0x7fffffff }; 52*25c28e83SPiotr Jasiukajtis 53*25c28e83SPiotr Jasiukajtis #else 54*25c28e83SPiotr Jasiukajtis #error Unknown architecture 55*25c28e83SPiotr Jasiukajtis #endif 56*25c28e83SPiotr Jasiukajtis 57*25c28e83SPiotr Jasiukajtis /* ARGSUSED0 */ 58*25c28e83SPiotr Jasiukajtis double __nan(const char * c)59*25c28e83SPiotr Jasiukajtis__nan(const char *c) { 60*25c28e83SPiotr Jasiukajtis return (__nan_union.d); 61*25c28e83SPiotr Jasiukajtis } 62