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