On 2020-04-26 10:01 am, David Kastrup wrote:
Predicates used in argument parsing have to be "primary" in that they have to deliver a result for anything thrown at them.positive? only delivers results for numbers but throws an error for anything else.
Would there be harm in redefining an R5RS primitive? ;;;; (define (positive? arg) (and (number? arg) (< 0 arg)) ;;;; -- Aaron Hill
