it.unimi.dsi.fastutil.Swapper Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of fastutil Show documentation

fastutil extends the Java Collections Framework by providing type-specific maps, sets, lists, and queues with a small memory footprint and fast access and insertion; 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. Note that if you have both this jar and fastutil-core.jar in your dependencies, fastutil-core.jar should be excluded.

There is a newer version: 8.5.15

Show newest version

package it.unimi.dsi.fastutil;

/*
 * Copyright (C) 2010-2017 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.
 */

/** An object that can swap elements whose position is specified by integers.
 * 
 * @see Arrays#quickSort(int, int, it.unimi.dsi.fastutil.ints.IntComparator, Swapper)
 */
@FunctionalInterface
public interface Swapper {
	/** Swaps the data at the given positions.
	 *
	 * @param a the first position to swap.
	 * @param b the second position to swap.
	 */
	void swap(int a, int b);
}