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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.longs;
import java.util.Iterator;
/** A type-specific {@link Iterator}; provides an additional method to avoid (un)boxing, and
	* the possibility to skip elements.
	*
	* @see Iterator
	*/
public interface LongIterator extends Iterator {
	/**
	 * Returns the next element as a primitive type.
	 *
	 * @return the next element in the iteration.
	 * @see Iterator#next()
	 */
	long nextLong();
	/** {@inheritDoc}
	 * @deprecated Please use the corresponding type-specific method instead. */
	@Deprecated
	@Override
	Long next();
	/** Skips the given number of elements.
	 *
	 * The effect of this call is exactly the same as that of
	 * calling {@link #next()} for n times (possibly stopping
	 * if {@link #hasNext()} becomes false).
	 *
	 * @param n the number of elements to skip.
	 * @return the number of elements actually skipped.
	 * @see Iterator#next()
	 */
	int skip(int n);
}