Aaron Hill <lilyp...@hillvisions.com> writes: > 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)) > ;;;;
It tends to make for a real mess for independent modules importing (scm lily) because then they tend to moan about conflicting definitions. -- David Kastrup
