Herb Sutter GotW 4: Class Mechanics

Herb Sutter’s GotW 4 on class mechanics is a treasure trove of best practice. It includes handy examples and canonical signatures for operator<, operator+ and the pre/post-increment operators.

I particularly liked his recommendation for implementing the postfix increment in terms of the prefix version:

complex operator++( int ) {
        auto temp = *this;
        ++real;
        return temp;
    }