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;  
    bool is_open = false;  
    param(void);
    param(std::string file_name);
    ~param(void);

    void open(std::string fname);


    void close(void);


    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);

    void read(const std::string param_name,
            Eigen::Matrix<double, 15, 15> &value);

    void read(const std::string param_name,
            Eigen::Matrix<double, 2, 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