File: string.c

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/*
 * Unicode string manipulation functions
 *
 * Copyright 2000 Alexandre Julliard
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "wine/unicode.h"

int strcmpiW( const WCHAR *str1, const WCHAR *str2 )
{
    for (;;)
    {
        int ret = toupperW(*str1) - toupperW(*str2);
        if (ret || !*str1) return ret;
        str1++;
        str2++;
    }
}

int strncmpiW( const WCHAR *str1, const WCHAR *str2, int n )
{
    int ret = 0;
    for ( ; n > 0; n--, str1++, str2++)
        if ((ret = toupperW(*str1) - toupperW(*str2)) || !*str1) break;
    return ret;
}

WCHAR *strstrW( const WCHAR *str, const WCHAR *sub )
{
    while (*str)
    {
        const WCHAR *p1 = str, *p2 = sub;
        while (*p1 && *p2 && *p1 == *p2) { p1++; p2++; }
        if (!*p2) return (WCHAR *)str;
        str++;
    }
    return NULL;
}