There is 6.1.1.8 Restrictions on Side-Effects<http://www.lispworks.com/documentation/HyperSpec/Body/06_aah.htm>that seems to pretty clearly support the opinion of pjb. -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mailman.common-lisp.net/pipermail/pro/attachments/20140129/5e69d0ba/attachment.html>