Feature request: specialized persistent vectors

[phoe]

persistent-vector/persistent-vector.lisp

Lines 16 to 17 in 29974e8

	(defun make-array-chunk ()
	(make-array +chunk-size+ :initial-element nil))

Maybe the chunks could be specialized to a given type, e.g. fixnum or unsigned-byte 8 for boosts in memory usage and minor boosts in access speed. That's just the data part though, I have no idea how to portably and easily optimize access speed for the specialized versions of the code. Maybe polymorphic-functions would help here.