Interactive Common Lisp development
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Common Lisp programming is often presented as “interactive”. In most languages, modifications to your program are applied either by recompiling it and restarting it. In contrast, Common…
  • SlowValueBEnglish
    1·
    1 year ago
    (lisp-implementation-type)
;; ⇒ "SBCL"
(lisp-implementation-version)
;; ⇒ "2.3.10"
(setf (symbol-function 'foo) #'1+)
;; ⇒ #
(let ((old-foo #'foo))
  (setf (symbol-function 'foo) #'1-)
  (funcall old-foo 42))
;; ⇒ 43 (6 bits, #x2B, #o53, #b101011)