/*
  new2 -- create new map
  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 <stdlib.h>
#include "map.h"



map *
map_new2(int size,
	 int (*equal)(void *key1, void *key2),
	 unsigned int (*hash)(void *key, int size),
	 void *(*cpykey)(void *key),
	 void (*delkey)(void *key),
	 void (*delval)(void *value))
{
    map *m;
    int i;

    if (size < 0)
	return NULL;

    if ((m=(map *)malloc(sizeof(map))) == NULL)
	return NULL;

    m->size = size ? size : map_def_size;
    m->equal = (equal == (int (*)())MAP_DFL || equal == NULL)
	? map_def_equal : equal;
    m->hash = (hash == (unsigned int (*)())MAP_DFL || hash == NULL)
	? map_def_hash : hash;
    m->cpykey = (cpykey == (void *(*)())MAP_DFL)
	? map_def_cpykey : cpykey;
    m->delkey = (delkey == MAP_DFL) ? map_def_delkey : delkey;
    m->delval = (delval == MAP_DFL) ? map_def_delval : delval;

    if ((m->entry=(map_entry *)malloc(sizeof(map_entry)*m->size))
	== NULL) {
	free(m);
	return NULL;
    }

    for (i=0; i<m->size; i++) {
	m->entry[i].key = NULL;
	m->entry[i].value = NULL;
	m->entry[i].next = NULL;
    }
	
    return m;
}