TXTReader.hpp

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#pragma once
 
#include <Eigen/Core>
#include <fstream>
#include <string>
#include "logging/Logger.hpp"
 
// ----------------------------------------------------------- CLASS DEFINITION
 
namespace precice {
namespace io {
 
class TXTReader {
public:
  explicit TXTReader(const std::string &filename);
 
  template <typename Scalar, int Rows, int Cols>
  void read(Eigen::Matrix<Scalar, Rows, Cols> &matrix)
  {
    for (long i = 0; i < matrix.rows(); i++) {
      for (long j = 0; j < matrix.cols(); j++) {
        double scalar;
        _file >> scalar;
        matrix(i, j) = scalar;
      }
    }
  }
 
private:
  logging::Logger _log{"io::TXTReader"};
 
  std::ifstream _file;
};
 
} // namespace io
} // namespace precice