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 /* 24 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 25 * Use is subject to license terms. 26 */ 27 28 #pragma ident "%Z%%M% %I% %E% SMI" 29 30 #include "synonyms.h" 31 #include <sys/types.h> 32 #include <wchar.h> 33 #include <limits.h> 34 #include <string.h> 35 #include "libc.h" 36 37 wchar_t * 38 wmemmove(wchar_t *ws1, const wchar_t *ws2, size_t n) 39 { 40 wchar_t *ows1; 41 size_t max = SIZE_MAX / sizeof (wchar_t); 42 43 if (n <= max) { 44 return ((wchar_t *)memmove((void *)ws1, 45 (const void *)ws2, n * sizeof (wchar_t))); 46 } 47 48 ows1 = ws1; 49 if (n != 0) { 50 if (ws1 <= ws2) { 51 do { 52 *ws1++ = *ws2++; 53 } while (--n != 0); 54 } else { 55 ws2 += n; 56 ws1 += n; 57 do { 58 *--ws1 = *--ws2; 59 } while (--n != 0); 60 } 61 } 62 return (ows1); 63 } 64