[Perldl] question about use64bitall perl

[Chris Marshall]

>From reading about the perl API array
indexes are represented as a 32bit int internally.

Is there such a thing as a "true 64bit perl" where
the number of elements in an array would be
indexed with, say, a 64bit int data type?

This is relevant to PDL for the implementation
of our 64bit indexing for pdls (e.g., conversion
between perl lists and piddles).

Thanks,
Chris