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From:	Hans-Bernhard Broeker <broeker AT physik DOT rwth-aachen DOT de>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Trouble of using very large arrays
Date:	23 Apr 2004 10:08:36 GMT
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Cesar Rabak <crabak AT acm DOT org> wrote:
> Brian Inglis escreveu:
[...]
>  > -- avoid using types for sizes, in case someone later changes the
>  > assigned pointer type; use object sizes instead;
>  >
>  > this is cleaner and more maintainable:
>  >
>  > a = malloc(rows * columns * sizeof *a);
>  >
> This is not a good advice: you're changing the allocation of an object 
> of (rows x columns) ints to another of (rows x columns) pointers to int.

No, he's not.  The type of *a is int, not pointer to int.  See Alex's
original code --- he silently changed the OP's two-dimensional array
to a one-dimensional one with manually computed indexing.

-- 
Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de)
Even if all the snow were burnt, ashes would remain.

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