double_buffer.h
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	//
	// Created by Arnaud Pannatier on 06.05.18.
	// Based on the code of :
	// - Nicolas Richart <nicolas.richart@epfl.ch>
	// - Vincent Keller <vincent.keller@epfl.ch>
	// - Vittoria Rezzonico <vittoria.rezzonico@epfl.ch>
	// See the files AUTHORS and COPYRIGHT for the concerning informations
	//

	#ifndef PHPCTSUNAMIPROJECT_DOUBLE_BUFFER_H
	#define PHPCTSUNAMIPROJECT_DOUBLE_BUFFER_H

	#include <memory>
	#include "grid.h"

	class DoubleBuffer {
	public:
	// Constructor
	DoubleBuffer() = default;
	DoubleBuffer(int m, int n);

	// return the current value
	Grid & current();
	// return the old value
	Grid & old();


	void swap();

	private:

	// Keep a pointer to the actual place in memory, assure that we don't duplicate the memory
	std::unique_ptr<Grid> m_current;
	std::unique_ptr<Grid> m_old;
	};


	#endif //PHPCTSUNAMIPROJECT_DOUBLE_BUFFER_H