io/rdbuf1.cpp

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>
#include <fstream>
using namespace std;

int main()
{
    // stream for hexadecimal standard output
    ostream hexout(cout.rdbuf());
    hexout.setf (ios::hex, ios::basefield);
    hexout.setf (ios::showbase);

    // switch between decimal and hexadecimal output
    hexout << "hexout: " << 177 << " ";
    cout   << "cout: "   << 177 << " ";
    hexout << "hexout: " << -49 << " ";
    cout   << "cout: "   << -49 << " ";
    hexout << endl;
}