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/* Copyright 2009-2014
 * Kaz Kylheku <kaz@kylheku.com>
 * Vancouver, Canada
 * All rights reserved.
 *
 * Redistribution of this software in source and binary forms, with or without
 * modification, is permitted provided that the following two conditions are met.
 *
 * Use of this software in any manner constitutes agreement with the disclaimer
 * which follows the two conditions.
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN NO EVENT SHALL THE
 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DAMAGES, HOWEVER CAUSED,
 * AND UNDER ANY THEORY OF LIABILITY, ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

extern val weak_keys_k, weak_vals_k, equal_based_k;

val make_hash(val weak_keys, val weak_vals, val equal_based);
val make_similar_hash(val existing);
val copy_hash(val existing);
val gethash_c(val hash, val key, loc new_p);
val gethash(val hash, val key);
val inhash(val hash, val key, val init);
val gethash_n(val hash, val key, val notfound_val);
val gethash_f(val hash, val key, loc found);
val sethash(val hash, val key, val value);
val pushhash(val hash, val key, val value);
val remhash(val hash, val key);
val hash_count(val hash);
val get_hash_userdata(val hash);
val set_hash_userdata(val hash, val data);
val hashp(val obj);
val maphash(val func, val hash);
val hash_begin(val hash);
val hash_next(val iter);
val hash_eql(val obj);
val hash_equal(val obj);
val hashv(val args);
val hash_construct(val hashv_args, val pairs);
val group_by(val func, val seq, val hashv_args);
val hash_keys(val hash);
val hash_values(val hash);
val hash_pairs(val hash);
val hash_alist(val hash);
val hash_uni(val hash1, val hash2, val join_func);
val hash_diff(val hash1, val hash2);
val hash_isec(val hash1, val hash2, val join_func);
val hash_update(val hash, val fun);
val hash_update_1(val hash, val key, val fun, val init);

void hash_process_weak(void);

INLINE loc gethash_l(val hash, val key, loc new_p)
{
  return cdr_l(gethash_c(hash, key, new_p));
}

void hash_init(void);