| /* |
| FUNCTION |
| <<wmemcmp>>---compare wide characters in memory |
| |
| ANSI_SYNOPSIS |
| #include <wchar.h> |
| int wmemcmp(const wchar_t *<[s1]>, const wchar_t *<[s2]>, size_t <[n]>); |
| |
| TRAD_SYNOPSIS |
| int wmemcmp(<[s1]>, <[s2]>, <[n]> |
| const wchar_t *<[s1]>; |
| const wchar_t *<[s2]>; |
| size_t <[n]>; |
| |
| DESCRIPTION |
| The <<wmemcmp>> function compares the first <[n]> wide characters of the |
| object pointed to by <[s1]> to the first <[n]> wide characters of the |
| object pointed to by <[s2]>. This function is not affected by locale |
| and all wchar_t values are treated identically. The null wide character |
| and wchar_t values not corresponding to valid characters are not treated |
| specially. |
| |
| If <[n]> is zero, <[s1]> and <[s2]> must be a valid pointers and the |
| function behaves as if the two objects compare equal. |
| |
| RETURNS |
| The <<wmemcmp>> function returns an integer greater than, equal to, |
| or less than zero, accordingly as the object pointed to by <[s1]> is |
| greater than, equal to, or less than the object pointed to by <[s2]>. |
| |
| PORTABILITY |
| <<wmemcmp>> is ISO/IEC 9899/AMD1:1995 (ISO C). |
| |
| No supporting OS subroutines are required. |
| */ |
| |
| /* $NetBSD: wmemcmp.c,v 1.1 2000/12/23 23:14:37 itojun Exp $ */ |
| |
| /*- |
| * Copyright (c)1999 Citrus Project, |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * citrus Id: wmemcmp.c,v 1.2 2000/12/20 14:08:31 itojun Exp |
| */ |
| |
| #include <_ansi.h> |
| #include <wchar.h> |
| |
| int |
| _DEFUN (wmemcmp, (s1, s2, n), |
| _CONST wchar_t * s1 _AND |
| _CONST wchar_t * s2 _AND |
| size_t n) |
| { |
| size_t i; |
| |
| for (i = 0; i < n; i++) |
| { |
| if (*s1 != *s2) |
| { |
| /* wchar might be unsigned */ |
| return *s1 > *s2 ? 1 : -1; |
| } |
| s1++; |
| s2++; |
| } |
| return 0; |
| } |
