(assert (eq (nth (* 1440 most-positive-fixnum) s) 'c))
(setf (nth (* 1440 most-positive-fixnum) s) 14)
(assert (eq (nth (* 1440 most-positive-fixnum) s) 14)))
+
+(let ((s (copy-list '(1 2 3))))
+ (assert (eq s (last s (* 1440 most-positive-fixnum))))
+ (assert (null (butlast s (* 1440 most-positive-fixnum))))
+ (assert (null (nbutlast s (* 1440 most-positive-fixnum)))))
+
+;;; Bug reported by Paul Dietz: ASSOC should ignore NIL elements in a
+;;; alist
+(let ((f (compile nil '(lambda (x)
+ (assoc x '(nil (a . b) nil (nil . c) (c . d))
+ :test #'eq)))))
+ (assert (equal (funcall f 'nil) '(nil . c))))