/*
  next -- next entry of iterate
  Copyright (C) 1996 Dieter Baron

  This file is part of libmap, a library for associative arrays.
  The author can be contacted at <dillo@giga.or.at>

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Library General Public
  License as published by the Free Software Foundation; either
  version 2 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
  Library General Public License for more details.

  You should have received a copy of the GNU Library General Public
  License along with this library; if not, write to the Free
  Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/



#include <stddef.h>
#include "map.h"



int
map_next(map_iter *mi, void **key, void **value)
{
    while (mi->entry == NULL) {
	if (mi->index < mi->m->size-1) {
	    mi->index++;
	    mi->entry = mi->m->entry[mi->index].next;
	}
	else
	    return -1;
    }

    *key = mi->entry->key;
    *value = mi->entry->value;
    mi->entry = mi->entry->next;

    return 0;
}