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Newsgroups: gnu.emacs.bug
Subject: format idiot checks
Message-ID: <9969@ur-cc.UUCP>
From: rbr4@UHURA.CC.ROCHESTER.EDU (Roland Roberts)
Date: 20 Oct 90 08:32:42 GMT
Sender: daemon@tut.cis.ohio-state.edu
Distribution: gnu
Organization: University of Rochester, Rochester NY
Summary: format will accept stupid field sizes that crash emacs
Approved: bug-gnu-emacs@prep.ai.mit.edu
Lines: 16

GNU Emacs 18.55 on vax-vms

Try (format "%90d" 24).  The result is an "Improperly handled
condition, Image Exit Forced" followed by register dump.  I think the
origin of the problem lies in doprnt.c which uses a temporary buffer
for output from sprintf.  The tmpbuf is declared as `char tmpbuf[80]'
which seems a bit small, particularly since the temporary buffer used
in print.c is 300 characters.

roland

-- 
Roland Roberts,  University of Rochester   BITNET: roberts@uornsrl
  Nuclear Structure Research Lab         INTERNET: rbr4@uhura.cc.rochester.edu
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