Use while loop to read file content

   
#include <iostream>    
#include <fstream>   
using namespace std;     
main(int argc, char *argv[])   
{   
  char ch;   
     
  if(argc!=2) {   
    cout << "Usage: PR <filename>\n";   
    return 1;   
  }   
     
  ifstream in(argv[1]);   
  if(!in) {   
    cout << "Cannot open file";   
    return 1;   
  }   
     
  while(in) { // in will be 0 when eof is reached   
    in.get(ch);   
    cout << ch;   
  }   
     
  return 0;   
}

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Use while loop to read file content : ifstream « File « C++

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