Compile time iota

[zeljkog via Digitalmars-d]

Maybe something like this can be added to Fobos:

template Iota(int start, int stop, int step = 1){
    template tuple(T...){
        alias tuple = T;
    }
    static if(start < stop)
        alias Iota = tuple!(start, Iota!(start + step, stop, step));
    else
        alias Iota = tuple!();
}