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/**
 * Copyright (C) 2010-2018 Gordon Fraser, Andrea Arcuri and EvoSuite
 * contributors
 *
 * This file is part of EvoSuite.
 *
 * EvoSuite is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, either version 3.0 of the License, or
 * (at your option) any later version.
 *
 * EvoSuite is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with EvoSuite. If not, see .
 */
package org.evosuite.graphs.cfg;

import java.util.Comparator;

/**
 * Orders CFGVertices according to their id
 * 
 * This is mainly used to put BytecodeInstructions into a PriorityQueue in
 * ControlFlowGraph.getMaximalInitialDistance()
 * 
 * @author Gordon Fraser
 */
public class BytecodeInstructionIdComparator implements Comparator {

	/** {@inheritDoc} */
	@Override
	public int compare(BytecodeInstruction arg0, BytecodeInstruction arg1) {

		return Integer.compare(arg0.getInstructionId(), arg1.getInstructionId());
	}
}