The following code example is taken from the book
The C++ Standard Library - A Tutorial and Reference
by Nicolai M. Josuttis, Addison-Wesley, 1999
© Copyright Nicolai M. Josuttis 1999
#include <iostream>
using namespace std;
int main()
{
char c;
// while it is possible to read a character
while (cin.get(c)) {
// print it
cout.put(c);
}
}