Thread: file i/o help

I know the basic file i/o structur, but I can't work out how to make it display more than one string on the page?

Code:

#include <fstream>
#include <iostream>

using namespace std;

int main()
{
  char str[10];

  //Creates an instance of ofstream, and opens example.txt
  ofstream a_file ( "example.txt" );
  // Outputs to example.txt through a_file
  a_file<<"This text will now be inside of example.txt";
  // Close the file stream explicitly
  a_file.close();
  //Opens for reading the file
  ifstream b_file ( "example.txt" );
  //Reads one string from the file
  b_file>> str;
  //Should output 'this'
  cout<< str <<"\n";
  // b_file is closed implicitly here
}

This is the code from cprog and it displays 'this'. But how do you display the whole thing

one quick and easy way would be to:

Code:

string ouput = "This text will now be inside of example.txt";

a_file << output;

The problem was to read a string, not output a string.

The simplest method to get an entire line is to use std::getline():

Code:

std::string input;
std::ifstream b_file("example.txt");
std::getline(b_file, input);  //get a whole line of text from the file

thanks