dyna/stridxvar.cpp

The following code example is taken from the book
Object-Oriented Programming in C++
by Nicolai M. Josuttis, Wiley, 2002
© Copyright Nicolai M. Josuttis 2002


/* [] operator for variables
 */
char& String::operator [] (unsigned idx)
{
    // index not in permitted range?
    if (idx >= len) {
        throw std::out_of_range("string index out of range");
    }

    return buffer[idx];
}