cdrtools/libschily/wcsncmp.c

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2025-06-15 04:19:58 +08:00
/* @(#)wcsncmp.c 1.4 10/05/06 Copyright 2006-2010 J. Schilling */
#include <schily/mconfig.h>
#ifndef lint
static UConst char sccsid[] =
"@(#)wcsncmp.c 1.4 10/05/06 Copyright 2006-2010 J. Schilling";
#endif
/*
* wcsncmp() to be used if missing in libc
*
* Copyright (c) 2006-2010 J. Schilling
*/
/*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* See the file CDDL.Schily.txt in this distribution for details.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file CDDL.Schily.txt from this distribution.
*/
#include <schily/standard.h>
#include <schily/unistd.h>
#include <schily/wchar.h>
#include <schily/schily.h>
#ifndef HAVE_WCSNCMP
EXPORT int
wcsncmp(s1, s2, len)
register const wchar_t *s1;
register const wchar_t *s2;
register size_t len;
{
if (s1 == s2)
return (0);
if (len == 0)
return (0);
do {
if (*s1 == *s2++) {
if (*s1++ == '\0')
return (0);
} else {
break;
}
} while (--len > 0);
return (len == 0 ? 0 : *s1 - *(--s2));
}
#endif /* HAVE_WCSNCMP */