## Safe switch

A Better Enum can be used directly in a `switch` statement:

    #include <iostream>
    <em>#include <enum.h></em>

    <em>ENUM(Channel, int, Red, Green, Blue)</em>

    int main()
    {
        Channel     channel = Channel::Green;
        int         n;

        <em>switch </em>(<em>channel</em>) {
            <em>case Channel::Red</em>:   n = 13; break;
            <em>case Channel::Green</em>: n = 37; break;
            <em>case Channel::Blue</em>:  n = 42; break;
        }

If you miss a case or add a redundant one, your compiler should be able to give
you a warning &mdash; try it!

---

        std::cout << n << std::endl;
        return 0;
    }

%% description = Usage in switch statements.