C++ ifstream rdbuf() send its buffer to cout

#include <fstream>
#include <iostream>
using namespace std;
int main()//from w  ww.j a  v a  2s.  c o  m
{
   ifstream infile("TEST.TXT");   //create file for input
   cout << infile.rdbuf();        //send its buffer to cout
   cout << endl;
   return 0;
}