Path: utzoo!attcan!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!uflorida!haven!adm!xadmx!milne@ics.uci.edu
From: milne@ics.uci.edu (Alastair Milne)
Newsgroups: comp.lang.pascal
Subject: Re: TP4.0 Aux Prob.
Message-ID: <17499@adm.BRL.MIL>
Date: 13 Nov 88 07:40:21 GMT
Sender: news@adm.BRL.MIL
Lines: 30

>I just typed in the code on pages 365 - 367 of the Turbo Pascal 4.0 manual,
> ...

   Could you please recheck your page reference?  pp. 365-367 in my manual
   discusses the inline statement; the only code is a small routine, FillWord,
   at the bottom of 366.  

   Assuming you meant the AuxInOut unit that is given several pages further
   on (p. 373): no, it doesn't compile as given.  The reason is hinted 
   in the paragraph after the end.

   When they use TextRec, they use 2 fields that they call Port and Params.
   However, just as the paragraph says, these aren't in Turbo's TextRec 
   definition (it's on p. 298 in my manual).  The paragraph claims that
   AuxInOut defines them, replacing the UserData field with them; but it 
   doesn't!  AuxInOut contains no re-definition at all of TextRec. 

   To get my version to compile, I made Port and Param private globals.  This
   will work if AuxInOut is used only with one file.  Or you can try making
   your own local redefinition of TextRec as they describe.

   I haven't tried using it since a) I am using the serial port to write this
   message and b) I don't know how the Params argument should be used.

   I do feel that this is rather careless: the golden rule is always to try
   your examples before you publish them.  They could hardly have tried this
   one!


   Alastair Milne