Subject: Re: What's the point of flet? From: Erik Naggum <email@example.com> Date: Wed, 31 Oct 2001 22:10:19 GMT Newsgroups: comp.lang.lisp Message-ID: <firstname.lastname@example.org> * Francis Leboutte | It would be nice to have the possibility to make the new binding of | square have dynamic scope. I think an equivalent of the dynamic variable | notion for a function defined locally would be useful in CL. There is a letf macro going around in various versions that can be used for this effect: (letf (((symbol-function 'whatever) (lambda ...))) ...) It basically does (let ((<gensym> (symbol-function 'whatever))) (setf (symbol-function 'whatever) (lambda ...)) (unwind-protect ... (setf (symbol-function 'whatever) <gensym>))) /// -- Norway is now run by a priest from the fundamentalist Christian People's Party, the fifth largest party representing one eighth of the electorate. -- Carrying a Swiss Army pocket knife in Oslo, Norway, is a criminal offense.