[feature] Enum classes "count".

[p-groarke]

I don't know how much effort this would take, but if it is too much don't worry about it. I understand you maintain this for fun on your free time.

One of my only gripes with mx is the lack of count enum class members.

In my experience, it is often best practice to add a trailing count enum, which enables you to write generalized loops on enums without ever worrying about size problems. For ex.

enum class potato {
    russet,
    yukon,
    sweet,
    count, // This will always be equal to the number of enum elements, if they aren't specified values.
};

So I can do.

for (size_t i = 0; i < size_t(potato::count); ++i) {
    potato my_potato = potato(i); //etc
}

So, in mx. I wish there was a count where it makes sense. For ex with Step.

    	enum class Step
    	{
    		c = 0,
    		d = 1,
    		e = 2,
    		f = 3,
    		g = 4,
    		a = 5,
    		b = 6,
    		count,
            unspecified = -1
    	};

Cheers

[webern]

Do you have need of such loops currently, or is this more of an aesthetic preference?

[p-groarke]

Yes I do, but so far only for Mx::Step.

[webern]

Ok, that makes sense. Step is arguably a numerical concept anyway.