Stop show with sound -- Keyboard shortcut: 'x'  Next slide in show -- Keyboard shortcut: 'n'  22 secondsName binding, Recursion, Iteration, and Continuations - slide 39 : 42

Capturing, storing, and applying continuations
We here show capturing, imperative assignment, and a subsequent application of a continuation
Context C and expression E

 Value of C

 Application of continuation

 Value

(+ 5 
 (call/cc 
  (lambda (e) 
   (set! cont-remember e)
   (* 4 3))))
 
17
 
(cont-remember 3)
 
8
(cons 1 
 (cons 2 
  (cons 3 
   (call/cc 
    (lambda (e) 
     (set! cont-remember e)
     '())))))
 
(1 2 3)
 
(cont-remember '(7 8))
 
(1 2 3 7 8)
(define x 5)
(if (= 0 x)
    'undefined
    (remainder 
     (* (call/cc 
         (lambda (e) 
          (set! cont-remember e)
          (+ x 1) ))
        (- x 1))
     x))
 
4
 
(cont-remember 3)
 
2