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SketchyLISP
Reference
  Copyright (C) 2006
Nils M Holm

char<=?

Conformance: R5RS

Purpose: Test whether two chars are in lexically non-descending order.

Arguments:
X - char
Y - char

Implementation:

(define (char<=? x y)
  (eq? (char>? x y) #f))

Example:

(char<=? #\b #\b) 
=> #t

See also:
char-ci<=?, char<?, char=?, char>?, char>=?, string<=?, equal?.