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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file Fit/Adapter/ObjectiveFunctionAdapter.h
//! @brief Declares class ObjectiveFunctionAdapter.
//!
//! @homepage http://www.bornagainproject.org
//! @license GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2018
//! @authors Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
// ************************************************************************************************
#ifdef SWIG
#error no need to expose this header to Swig
#endif // SWIG
#ifndef BORNAGAIN_FIT_ADAPTER_OBJECTIVEFUNCTIONADAPTER_H
#define BORNAGAIN_FIT_ADAPTER_OBJECTIVEFUNCTIONADAPTER_H
#include "Fit/Minimizer/Types.h"
#include <memory>
class RootResidualFunction;
class RootScalarFunction;
namespace mumufit {
class IFunctionAdapter;
class Parameters;
//! Converts user objective function to function ROOT expects.
//! Handles time of life of function objects.
class ObjectiveFunctionAdapter {
public:
ObjectiveFunctionAdapter();
~ObjectiveFunctionAdapter();
const RootScalarFunction* rootObjectiveFunction(fcn_scalar_t fcn, const Parameters& parameters);
const RootResidualFunction* rootResidualFunction(fcn_residual_t fcn,
const Parameters& parameters);
int numberOfCalls() const;
int numberOfGradientCalls() const;
private:
std::unique_ptr<IFunctionAdapter> m_adapter;
};
} // namespace mumufit
#endif // BORNAGAIN_FIT_ADAPTER_OBJECTIVEFUNCTIONADAPTER_H
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