From:	Litmus Dragon <litmusdragonNOliSPAM AT mailcity DOT com DOT invalid>
Subject:	Huge project -- now stuck -- help please!
Newsgroups:	comp.os.msdos.djgpp
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Date:	Fri, 21 Jan 2000 10:51:13 -0800
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To:	djgpp AT delorie DOT com
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Reply-To:	djgpp AT delorie DOT com

I've been working on a project called Dragon Engine for about 4 months
now.  Before I go into details on the problem I am having I should
first say that I have never taken any classes on C programming and have
learned from the net and from a couple of books.

This program (homepage is http://home.fuse.net/litmus/de.html) is an
engine for making tile-based RPGs along the lines of the old Ultima
games.  The editor and the play game engine are coded into one C file,
which at present is 17,000+ lines of code (yes, that's not a typo).

Here's my problem.  I just finished adding a new section to the code,
composed of maybe 300 new lines.  Up until this point the program was
compiling fine.  I went to compile it this time and GCC returned an
error "Abort!".  This was the complete error, no specifics on why it
aborted, no line referenced in the C file, etc.

To troubleshoot this I remarked out the new code sections with "/*" and
"*/" and tried to compile again.  This time it compiled fine.  I
continued along these lines, remarking out different sections of the
new code, attempting to narrow down what was causing this problem. 
I've narrowed it down to three totally innocent looking lines of code:

titlea[x][y]=pickt;
titlear[x][y]=picktr;
titleset[x][y]=menusel-1;

If I remark out these lines of code, the entire program compiles fine. 
If I leave them in, I either get a "this program has preformed an
illegal operation" from GCC or I get the mysterious "Abort!" message. 
Just to be completely clear, it's not doing these things at run-time,
it's doing them during compile.  All of those variables listed above
(in the offending bit of code) are integers.  I am using DJGPP v2, GCC,
and the Allegro library.

The only thing that I can think of is that maybe I have exhausted the
available memory for my program.  Is there an upper limit?  Or is
something else going on here?

Any help would be greatly appreciated!

/_itmus


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