/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #pragma ident "%Z%%M% %I% %E% SMI" #include "lint.h" #include <sys/types.h> #include "libc.h" unsigned __dtou(double d) { /* Convert double to unsigned. */ int id; /* * id = d is correct if 0 <= d < 2**31, and good enough if d is NaN * or d < 0 or d >= 2**32. Otherwise, since the result (int)d of * converting 2**31 <= d < 2**32 is unknown, adjust d before the * conversion. */ if (d >= 2147483648.0) id = 0x80000000 | (int)(d - 2147483648.0); else id = (int)d; return ((unsigned)id); } unsigned __ftou(float d) { /* Convert float to unsigned. */ int id; /* * id = d is correct if 0 <= d < 2**31, and good enough if d is NaN * or d < 0 or d >= 2**32. Otherwise, since the result (int)d of * converting 2**31 <= d < 2**32 is unknown, adjust d before the * conversion. */ if (d >= 2147483648.0) id = 0x80000000 | (int)(d - 2147483648.0); else id = (int)d; return ((unsigned)id); }