1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include "synonyms.h" 30*0Sstevel@tonic-gate #include <sys/types.h> 31*0Sstevel@tonic-gate #include "libc.h" 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate unsigned 34*0Sstevel@tonic-gate __dtou(double d) 35*0Sstevel@tonic-gate { 36*0Sstevel@tonic-gate /* Convert double to unsigned. */ 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate int id; 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate /* 41*0Sstevel@tonic-gate * id = d is correct if 0 <= d < 2**31, and good enough if d is NaN 42*0Sstevel@tonic-gate * or d < 0 or d >= 2**32. Otherwise, since the result (int)d of 43*0Sstevel@tonic-gate * converting 2**31 <= d < 2**32 is unknown, adjust d before the 44*0Sstevel@tonic-gate * conversion. 45*0Sstevel@tonic-gate */ 46*0Sstevel@tonic-gate 47*0Sstevel@tonic-gate if (d >= 2147483648.0) 48*0Sstevel@tonic-gate id = 0x80000000 | (int)(d - 2147483648.0); 49*0Sstevel@tonic-gate else 50*0Sstevel@tonic-gate id = (int)d; 51*0Sstevel@tonic-gate return ((unsigned)id); 52*0Sstevel@tonic-gate } 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gate unsigned 55*0Sstevel@tonic-gate __ftou(float d) 56*0Sstevel@tonic-gate { 57*0Sstevel@tonic-gate /* Convert float to unsigned. */ 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate int id; 60*0Sstevel@tonic-gate /* 61*0Sstevel@tonic-gate * id = d is correct if 0 <= d < 2**31, and good enough if d is NaN 62*0Sstevel@tonic-gate * or d < 0 or d >= 2**32. Otherwise, since the result (int)d of 63*0Sstevel@tonic-gate * converting 2**31 <= d < 2**32 is unknown, adjust d before the 64*0Sstevel@tonic-gate * conversion. 65*0Sstevel@tonic-gate */ 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate if (d >= 2147483648.0) 68*0Sstevel@tonic-gate id = 0x80000000 | (int)(d - 2147483648.0); 69*0Sstevel@tonic-gate else 70*0Sstevel@tonic-gate id = (int)d; 71*0Sstevel@tonic-gate return ((unsigned)id); 72*0Sstevel@tonic-gate } 73