aparler/RosettaCodeData
1
0
Fork 0
Code Issues 12 Pull requests 3 Projects Releases Packages Wiki Activity Actions

tasks a-s

Browse source
This commit is contained in:
Ingy döt Net 2013-04-10 23:57:08 -07:00
parent 47bf37c096
commit b83f433714
12433 changed files with 156208 additions and 123 deletions
Download patch file Download diff file Expand all files Collapse all files

1
Task/Null-object/Common-Lisp/null-object-1.lisp Normal file
View file

@ -0,0 +1 @@
(if (condition) (do-this))

5
Task/Null-object/Common-Lisp/null-object-2.lisp Normal file
View file

@ -0,0 +1,5 @@
(defmethod car* ((arg cons))
(car arg))
(defmethod car* ((arg null))
nil)

2
Task/Null-object/Common-Lisp/null-object-3.lisp Normal file
View file

@ -0,0 +1,2 @@
(defmethod car* ((arg t)) ;; can just be written (defmethod car* (arg) ...)
(error "CAR*: ~s is neither a cons nor nil" arg))