The following definition crashes in both J6 and J7 (although an old version of J7):
pack=:[:3!:1[:(];[:5!:1<)&>;:^:(L.=0:) Versions: 9!:14'' j701/beta/2009-09-23/11:25 9!:14'' j602/2008-03-03/16:45 If the argument to "pack" is an undefined name J crashes. pack 'abc' NB. Crashes J if abc is undefined. I tried to simplify the definition but all my attempts resulted in a "value error" handled properly by J. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
