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fastutil extends the Java Collections Framework by providing type-specific maps, sets, lists, and queues with a small memory footprint and fast operations; it provides also big (64-bit) arrays, sets, and lists, sorting algorithms, fast, practical I/O classes for binary and text files, and facilities for memory mapping large files. This jar (fastutil-core.jar) contains data structures based on integers, longs, doubles, and objects, only; fastutil.jar contains all classes. If you have both jars in your dependencies, this jar should be excluded.

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/*
	* Copyright (C) 2020-2022 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.ints;
/** A class providing static methods and objects that do useful things with type-specific iterables.
	*
	* @see Iterable
	*/
public final class IntIterables {
	private IntIterables() {}
	/** Counts the number of elements returned by a type-specific iterable.
	 *
	 * @param iterable an iterable.
	 * @return the number of elements returned by {@code iterable}.
	 */
	public static long size(final IntIterable iterable) {
	 long c = 0;
	 for (@SuppressWarnings("unused") final int dummy : iterable) c++;
	 return c;
	}
}





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