compute_interaction.hh
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	#ifndef __COMPUTE_INTERACTION__HH__
	#define __COMPUTE_INTERACTION__HH__

	/* -------------------------------------------------------------------------- */
	#include "compute.hh"

	//! Base class for interaction computation
	class ComputeInteraction : public Compute {
	public:
	//! Apply a functor on all particle pairs
	template <typename Functor>
	void applyOnPairs(Functor func, System& system);
	};

	/* -------------------------------------------------------------------------- */
	/* Template implementation */
	/* -------------------------------------------------------------------------- */
	template <typename Functor>
	void ComputeInteraction::applyOnPairs(Functor func, System &system) {
	UInt size = system.getNbParticles();

	for (UInt p1 = 0; p1 < size; ++p1) {
	Particle& par1 = system.getParticle(p1);
	for (UInt p2 = p1 + 1; p2 < size; ++p2) {
	Particle& par2 = system.getParticle(p2);
	func(par1, par2);
	}
	}
	}

	/* -------------------------------------------------------------------------- */
	#endif //__COMPUTE_INTERACTION__HH__