dharmik, 4 months ago

Trying things I've done for Java in my class is more fun in Lisp.

dharmik, 4 months ago

Swapping using a temporary variable in Lisp.

screwtape, 3 months ago

@dharmik pretty cool, do you mind if I think out loud about these examples on the #lispyGopher #climate tomorrow?

louis, 3 months ago

@dharmik @screwtape

If you don't mind, the more elegant form to swap values (without the need to create a tmp symbol) is parallel assignment:

(psetq a1 a2 a2 a1)

There is also psetf, in case you need that.

zyd, 3 months ago

@louis @dharmik @screwtape

rotatef is also fun.

As a verbose example:

(defvar a 'a-value)<br></br>(defvar b 'b-value)<br></br>(rotatef a b)<br></br>