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From: hull@hao.UCAR.EDU (Howard Hull)
Newsgroups: comp.sys.amiga
Subject: Re: Manx 3.4 bug and sc.c
Message-ID: <664@hao.UCAR.EDU>
Date: Sun, 17-May-87 10:25:38 EDT
Article-I.D.: hao.664
Posted: Sun May 17 10:25:38 1987
Date-Received: Sun, 17-May-87 19:39:09 EDT
References: <56@f.gp.cs.cmu.edu>
Organization: High Altitude Obs./NCAR, Boulder CO
Lines: 27
Summary: Are Manx arrays booby trapped?

In article <56@f.gp.cs.cmu.edu>, mjw@f.gp.cs.cmu.edu (Michael Witbrock) writes:
> anyway, it has a line
> 
> short Cell[COUNT][COUNT];
> 
> in it (a global). This compiles, but is an undefined symbol at link time.

Ar haw!  Thank you velly much.  I could hardly believe my eyes when BOTH
3.20a and 3.40a urped the _Cell tag without producing an executable.  I
said to myself  "self, does this compiler think that a declaration with
two sets of square brackets following the variable name is a *function*?
GOOD LORD!  But then, I thought, "maybe it just croaks like this when it
runs out of space for the variable..."  So I reduced the array size to
128 by 128 and it took it.  So then, I thought "ok, maybe it can hack it
with large data."  No dice.  "Maybe large code?"  No dice.  "Maybe large
code and large data?"  No dice.  I then decided "well, what if it gets it
as a one dimensional array?"  So I started hacking it up, hoping to gain
the additional capacity to do [n x m], where n x m = 2^k.  You wouldn't
believe what happened then.  It mirrored about the x/y diagonal.  Probably
something I did wrong in the code, but really, linearizing an array is a
pretty simple affair, like (x * y) + x  instead of x,y.  Then I ran out of
time, you know, 2am Monday last.  Oh well...
						Best Regards,   Howard Hull
[If yet unproven concepts are outlawed in the range of discussion...
                 ...Then only the deranged will discuss yet unproven concepts]
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