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From: davidr@hplsla.UUCP
Newsgroups: comp.sys.ibm.pc
Subject: Re: Turbo Pascal file prob
Message-ID: <5280009@hplsla.HP.COM>
Date: Mon, 29-Jun-87 19:41:32 EDT
Article-I.D.: hplsla.5280009
Posted: Mon Jun 29 19:41:32 1987
Date-Received: Sat, 4-Jul-87 00:46:42 EDT
References: <8.352645a231@chemo.uucp>
Organization: HP Lake Stevens, WA
Lines: 12



This could be the  bug/feature  of the Turbo Pascal append  command I ran into
last year.  I called  Borland, and the comment was that the file you are going
to append to must not only  exist, but  end-of-file  (the point  where it will
begin to append) must be a 1A (a  control-Z)  character.  If the file does not
exist  that you want to append to, then doing a RESET  will  cause a  run-time
error.  However,  if the  file  does  exist  but  does  not  have a  control-Z
terminating character, then the run-time error is likely to occur in trying to
CLOSE the  "non-existing"  file.  (I just tested this quickly, and even though
it was difficult to create a zero length file, when I ran your program on that
file, it aborted on the CLOSE command.)