Better Enums

Welcome to the Better Enums tutorials! The code in this tutorial forms a valid program, which you can download and play with. The program runs as part of the automated test suite.

Iteration

Better Enums makes it easy to iterate over the values you have declared. For example, this:

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

BETTER_ENUM(Channel, int, Red, Green = 2, Blue)

int main()
{

    for (size_t index = 0; index < Channel::_size(); ++index) {
        Channel     channel = Channel::_values()[index];
        std::cout << channel._to_integral() << " ";
    }
    std::cout << std::endl;

will print "0 2 3". And this:

    for (size_t index = 0; index < Channel::_size(); ++index) {
        const char  *name = Channel::_names()[index];
        std::cout << name << " ";
    }
    std::cout << std::endl;

will print "Red Green Blue".

If you are using C++11, you can have much nicer syntax:

    for (Channel channel : Channel::_values())
        std::cout << channel._to_integral() << " ";
    std::cout << std::endl;

    for (const char *name : Channel::_names())
        std::cout << name << " ";
    std::cout << std::endl;

    return 0;
}