Unexpected behavior with loop macro and closures

Question

Why do these forms behave this way?

CL-USER>
(setf *closures*
      (loop for num in (list 1 2 3 4)
            collect (lambda ()
                      n         


        

Answer 1

The name num represents the same binding during the evaluation of LOOP. Maybe you want to write:

(mapcar 'constantly (list 1 2 3 4))

to get what you meant.