Random_Access_Reader.h

#ifndef QNANO_NEW_DISTRIBUTE_SEQUENTIAL_READER_DEFINED_H
#define QNANO_NEW_DISTRIBUTE_SEQUENTIAL_READER_DEFINED_H

#include "tools/Reader.h"

class Random_Access_Reader{
protected:
  bool was_setup;
public:
  std::ifstream ifs;
  std::streampos startpos;
  int lastline;
  std::string lastline_string;

  std::string get_line(int local_line_nr);

  void setup(const std::string &filename, std::streampos spos){
    startpos=spos;
    was_setup=true;
    lastline=-1;
    Reader::check_open(ifs, filename);
  }
  Random_Access_Reader() : was_setup(false){
  }
  Random_Access_Reader(const std::string &filename, std::streampos spos){
    setup(filename, spos);
  }
};

#endif