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/*
	* Copyright (C) 2002-2017 Sebastiano Vigna
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	*     http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
package it.unimi.dsi.fastutil.objects;
import java.util.Set;
/** A type-specific {@link Set}; provides some additional methods that use polymorphism to avoid (un)boxing.
	*
	* Additionally, this interface strengthens (again) {@link #iterator()}.
	*
	* @see Set
	*/
public interface ReferenceSet  extends ReferenceCollection , Set {
	/** Returns a type-specific iterator on the elements of this set.
	 *
	 * Note that this specification strengthens the one given in {@link java.lang.Iterable#iterator()},
	 * which was already strengthened in the corresponding type-specific class,
	 * but was weakened by the fact that this interface extends {@link Set}.
	 *
	 * @return a type-specific iterator on the elements of this set.
	 */
	@Override
	ObjectIterator  iterator();
}