From:	Ted Larsson <f93tela AT dd DOT chalmers DOT se>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Trouble when upgrading to gcc 2.8.1
Date:	Thu, 20 Aug 1998 10:37:16 +0200
Organization:	Chalmers University of Technology, Sweden
Lines:	33
Message-ID:	<35DBE03C.D0F3DD8E@dd.chalmers.se>
References:	<35D9F7ED DOT AC0455EE AT dd DOT chalmers DOT se> <6rd88r$jbr$5 AT news DOT luth DOT se>
NNTP-Posting-Host:	dynamic-202-51.dialup.chalmers.se
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Martin Str|mberg wrote:
> 
> Ted Larsson (f93tela AT dd DOT chalmers DOT se) wrote:
> : *  The compiler no longer recognizes the word NULL; gives an error
> :    message. Why?
> 
> Eh! Are you sure you have included the right header files?

No, I didn't include any files...  didn't need to with the old version.
What file(s) should I include? Where can I read about other changes
between 2.7.2.1 and 2.8.1?

> 
> : *  I have made a linked-list template class and a test program for
> :    it. Stepping through the list (double-linked) only works in one
> :    direction when compiled with DJGPP, but in both dirs with VC++ 4.2.
> :    (I take that as this part of the program is correct, and something
> :    is wrong with DJGPP...). What should I do? Reinstall everything?
> 
> Your program is probably incorrect as pointers (and probably doubly
> linked lists) are working fine for a lot of other people.
> Post some compilable code that exhibits this behaviour and why it's
> wrong and somebody can probably point at your error.

You're right, and I'm stupid. When I said that it works fine with VC++,
I had made changes to the VC++ compiled source files, and forgot to 
make the same changes to the DJGPP compiled ones. Now it works :-)

By the way, I haven't really figured out the gdb debugger. I really like
the VC++ debugger, so I wonder, can I get gdb to display debugging info
in a similar manner? Links to any tutorials?

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