just a basic for beginner.

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just a basic for beginner.

Postby HomuciferMadokami » Tue Nov 26, 2013 7:32 am

Code: Select all
(defun op(n)
   (nth (mod n 3) '(+ - *))
)
(defun pre-op(n)
   (nth (mod n 4) '(sqrt sin log))
)
(defun const(n)
   (nth (mod n 11) '(0.1 1 2 3 4 5 6 7 8 9))
)
(defun main()
   ((op 0) 3 2)
)
(main)

how do I make it become (+ 3 2)
HomuciferMadokami
 
Posts: 2
Joined: Tue Nov 26, 2013 7:20 am

Re: just a basic for beginner.

Postby sylwester » Thu Nov 28, 2013 4:07 pm

You use *defun* and that implies Common Lisp. Common Lisp is a LISP2 and it has separate namespace for everything in operator position and argument/variable position. To be able to use a function returned from a function or passed as argument you need to use *funcall*

Code: Select all
(defun main()
   (funcall (op 0) 3 2))


Good luck
Br,
Syl
I'm the author of two useless languages that uses BF as target machine.
Currently I'm planning a Scheme compiler :p
sylwester
 
Posts: 84
Joined: Mon Jul 11, 2011 2:53 pm


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