1 files changed, 2 insertions, 0 deletions
diff --git a/cdbc.lisp b/cdbc.lisp
index 9d790ab..57e04e5 100644
--- a/cdbc.lisp
+++ b/cdbc.lisp
@@ -1,5 +1,7 @@
 ;; Ported from https://rosettacode.org/wiki/Assertions_in_design_by_contract#Eiffel
 ;; Arguably not *quite* design-by-contract, but very close in vanilla CL
+;;
+;; NB: This has non-essential complexity compared to the ISLisp version.
 (defun average-of-absolutes (values)
   (declare (list values))
   (assert (> (length values) 0))