v_integrator.hpp

/*
 * SpectRE - A Spectral Code for Reheating
 * Copyright (C) 2009-2010 Hal Finkel, Nathaniel Roth and Richard Easther
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 * THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/**
 * @file
 * @brief Integrate the potential energy over the field.
 */

#ifndef V_INTEGRATOR_HPP
#define V_INTEGRATOR_HPP

#include "field_size.hpp"
#include "model_params.hpp"
#include "field.hpp"

template <typename R>
class v_integrator
{
public:
	v_integrator(field_size &fs_, model_params<R> &mp_);
	~v_integrator();

public:
	R integrate(field<R> &phi, field<R>& chi, R a_t);

protected:
	field_size &fs;	
	model_params<R> &mp;
	R *y_integral;
	R *z_integral;
};

#endif // V_INTEGRATOR_HPP