Is there any way to check if array is dense or not?

[Mariusz `shd` Gliwiński" <alienballance at gmail.com>]

As described on 
http://wiki.dlang.org/Dense_multidimensional_arrays we can have 
dense and jagged arrays. That's nice.

Is it possible to check if an array is jagged or not by using 
some template like std.traits : isArray ?