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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* generic utilities for hash tables */

/* 
 *
 * Author : 
 *  Bertrand Guiheneuf <bertrand@helixcode.com>
 *
 * Copyright 1999, 2000 Ximian, Inc. (www.ximian.com)
 *
 * This program is free software; you can redistribute it and/or 
 * modify it under the terms of version 2 of the GNU General Public 
 * License as published by the Free Software Foundation.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 */


#include <string.h>
#include <ctype.h>

#include "hash-table-utils.h"


/***/
/* use these two funcs for case insensitive hash table */

gint 
g_strcase_equal (gconstpointer a, gconstpointer b)
{
    return (strcasecmp ((char *) a, (char *) b) == 0);
}


/* modified g_str_hash from glib/gstring.c
   because it would have been too slow to
   us g_strdown() on the string */
/* a char* hash function from ASU */
guint
g_strcase_hash (gconstpointer v)
{
    const char *s = (char*)v;
    const char *p;
    guint h = 0, g;
    
    for (p = s; *p != '\0'; p += 1) {
        h = (h << 4) + toupper (*p);
        if ((g = h & 0xf0000000)) {
            h = h ^ (g >> 24);
            h = h ^ g;
        }
    }
    
    return h;
}