Mapping with partial

[matovitch via Digitalmars-d-learn]

Well I have a bit of a similar problem with foreach.

If I use classic T[] range, I can do :

foreach(int i, auto t, myRange)...

But if I use an Array!T (from std.container) I get :

cannot infer argument types, expected 1 argument, not 2

Even if I add the brackets []. Any idea ? Thanks for your help ! 
:)