Add SEQUENCEP.

[jscl.git] / src / list.lisp

diff --git a/src/list.lisp b/src/list.lisp
index 3726f7c..36adc0e 100644 (file)
--- a/src/list.lisp
+++ b/src/list.lisp
@@ -215,9 +215,10 @@
              (collect (apply func elems))))))))
 
 (defun mapc (func &rest lists)
-  (do* ((elems (map1 #'car lists) (map1 #'car lists-rest))
-        (lists-rest (map1 #'cdr lists) (map1 #'cdr lists-rest)))
-       ((dolist (x elems) (when (null x) (return t)))
+  (do* ((tails lists (map1 #'cdr tails))
+        (elems (map1 #'car tails)
+               (map1 #'car tails)))
+       ((dolist (x tails) (when (null x) (return t)))
         (car lists))
     (apply func elems)))