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/*
* $Id$
*
* Copyright (C) 2003 Red Hat, Inc.
*
* 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
*
* Original Author: Adrian Havill <havill@redhat.com>
*
* Contributors:
*/
#include "wlite_config.h" // wchar_t, NULL, size_t
#include "wlite_wchar.h" // prototypes
#include "wlite_wctype.h"
void *
wlite_bsearch_(const void *key, const void *base, size_t n, size_t size,
wlite_cmp_t_ cmp) {
const char *left = (const char *) base;
size_t right = n;
while (right != 0) {
const char *const middle = left + size * (right / 2);
const int result = (*cmp)(key, middle);
if (result < 0) {
right = right / 2;
}
else if (result > 0) {
left = middle + size;
right -= right / 2 + 1;
}
else return (void *) middle;
}
return NULL;
}
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