[boost] 'indexed' multi arrays?

From: Chris Hamilton (chamilton_at_[hidden])
Date: 2007-12-20 08:47:31

In a recent project I've been working on, we had need for something that
I'm calling (for lack of a better, more inspired name ;) an 'indexed'
multi array.  Essentially, we wanted something like a boost multi_array
but that also allowed indexing along each dimension using some kind of
indexing function.  For example, along one dimension the indexing
function may except a string as input and use a map to return an integer
 index, while along some other dimension the real line may be cut into
non-overlapping intervals and a double value is looked up returning the
index of the interval it belongs to.

We looked at various solutions, but in the end rolled our own based off
of the boost multi_array and a new concept of an 'indexer'.

Is this something that anybody else would see as useful? I hope my
explanation was sufficiently clear ;)

Cheers,

Chris Hamilton