Are there any mixin tutorials?

[bearophile]

ixid:

> Or any other appropriate methods to achieve things like:
> 
> Loop unrolling
> foreach(i;0..12)
>         //stuff involving the value

See Iota!() I've written here:
http://d.puremagic.com/issues/show_bug.cgi?id=4085

Bye,
bearophile