param.hpp

#ifndef FDCL_PARAM_H
#define FDCL_PARAM_H

#include <iostream>
#include <fstream>
#include <string>
#include <sstream>
#include <iomanip>      // std::setprecision

#include "Eigen/Dense"

namespace fdcl
{

class param
{

public:
    std::string file_name; 
    std::fstream file_stream; 
    param();
    param(std::string file_name);
    ~param();

    void open(std::string fname);


    void close();


    void read(const std::string param_name, bool &value);


    void read(const std::string param_name, double &value);


    void read(const std::string param_name, int &value);


    void read(const std::string param_name, std::string &value);


    void read(const std::string param_name, 
            Eigen::Matrix<double, 3, 3> &value);


    void read(const std::string param_name, 
            Eigen::Matrix<double, 4, 1> &value);


    void read(const std::string param_name, 
            Eigen::Matrix<double, 3, 1> &value);


    template<typename Derived>
    void read(const std::string param_name, Eigen::MatrixBase<Derived> &value);


    void save(const std::string param_name, bool value);

    
    void save(const std::string param_name, double value);


    void save(const std::string param_name, int value);


    void save(const std::string param_name, const std::string value);


    void save(const std::string param_name, 
            Eigen::Matrix<double, 3, 3>  &value);


    template<typename Derived>
    void save(const std::string param_name, Eigen::MatrixBase<Derived> &value);
    

private:
    std::string find_line(const std::string param_name);


    void replace_value(const std::string param_name, std::string new_value);

};  // end of fdcl::param class
}  // end of fdcl namespace

#endif