Demonstrate seekg().

 

#include <iostream>
#include <fstream>
#include <cstdlib>
using namespace std;

int main(int argc, char *argv[])
{
  char ch;

  if(argc!=3) {
    cout << "Usage: LOCATE <filename> <loc>\n";
    return 1;
  }

  ifstream in(argv[1], ios::in | ios::binary);

  if(!in) {
    cout << "Cannot open input file.\n";
    return 1;
  }

  in.seekg(atoi(argv[2]), ios::beg);

  while(!in.eof()) { 
    in.get(ch);
    cout << ch;
  }

  in.close();

  return 0;
}

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Demonstrate seekg(). : File Read « File « C++

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