chickadee » integer-map » fxmapping->decreasing-generator

This is the same as fxmapping->generator, except that the associations of fxmapping are produced in decreasing order of key.

Example:

(generator->list (fxmapping->decreasing-generator (fxmapping 3 "yar" 2 "troi")))
 ⇒ ((3 . "yar") (2 . "troi"))