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From: wallis@labc.enet.dec.com (Barry L. Wallis)
Newsgroups: comp.lang.c++
Subject: Re: Turbo C++ 2.0 compatability with older version?
Summary: Help with C++ streams
Message-ID: <14500@shlump.nac.dec.com>
Date: 11 Aug 90 14:32:47 GMT
Sender: newsdaemon@shlump.nac.dec.com
Organization: Digital Equipment Corporation
Lines: 48


In article <12838@rouge.usl.edu>, pcb@gator.cacs.usl.edu (Peter C. Bahrs) writes...
>I am trying to recompile some C++ code with the new 2.0 turbo
>compiler.  There are a bunch of errors regarding the use of
>filebuf with open   and ostream with <<   ?????
> 
>The books only say how to migrate to 2.0 unless I missed something.
> 
>I have selected the medium memory model, add the file prog1.cpp and the 
>library oldstrmm.lib to the project file and tried to compile...ERRRRROOOR
> 
>I turned default libs off....ERRRRROOR
>The chunk of code that barfs looks like:
> 
>#include <stream.h>
> 
>filebuf f;
>f.open ("thisfile", input);
> 
>istream i(&f);
> 
> 
>This works on all other non 2.0 compilers I have (AT&T GNU Zortech).
> 
>Any ideas?
> 

Yes. 

You are using the older stream format. If you want to continue doing that you
should read the file OLDSTR.DOC. However, should you want to upgrade to the 2.0
version read pages 183-185 (admittedly, there is not much there) in the Turbo
C++ Programmer's Guide. 

If, OTOH, your goal is to write 2.0 style streams, the following code should
accomplish what you are trying to do:

	#include <fstream.h>
	ifstream i("thisfile");

It may help you to look in the Turb C++ Getting Started manual as well (pages
184-193).
---
Barry L. Wallis			USENET: wallis@labc.dec.com
Database Consultant		Prodigy (don't laugh): DNMX41A
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