Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!ogicse!cvedc!gssc!timr
From: timr@gssc.UUCP (Tim Roberts)
Newsgroups: comp.lang.perl
Subject: Possible bug in MS-DOS Perl pl41?
Keywords: msdos perl bug
Message-ID: <6504@gssc.UUCP>
Date: 23 Jan 91 17:19:57 GMT
References: <119440@uunet.UU.NET> <1991Jan22.054732.14797@convex.com> <119542@uunet.UU.NET>
Organization: Graphic Software Systems, Inc. Beaverton, Or.
Lines: 29

I am encountering what I believe to be a bug in the MS-DOS port of Perl at
patch level 41, with header "perly.c,v 3.0.1.9 90/11/10 01:53:26".  Before I
really dig in to investigate, however, I want to check to see if anyone else
has encountered this problem.

Occasionally while reading data files, my scripts see repeated or missing 
characters.  It happens during the read; if I put a "print" immediately after
the "while (<FILE>) {", I see the bad data.

Here is a sample of what I see:

Actual data: 
io16 aee8 = 1111	# This should cause another interrupt

My script sees:
ioio16 aee8 = 1111	# This should cause another ierrupt

It's almost as if a strncpy or memmove were being done in the middle of the
input buffer.

Has anyone else seen any unexplained character duplications?  I have not yet 
tried to isolate this down to the minimum script necessary to duplicate, but 
if I don't get any responses, I will do so.

-- 
timr@gssc.gss.com	Tim N Roberts, CCP	Graphic Software Systems
						Beaverton, OR

Zen Master to hot dog vendor:  "Make me one with everything."