On Mon, Feb 28, 2011 at 07:28, Alan Wolfe <alan.wolfe_at_gmail.com> wrote:

>
> Basically, it allocates a single byte so there's a valid memory
> address in chunk.memory so that realloc can be called on it later on.
> If it started out NULL, there would have to be an if check before the
> realloc call, so it just simplifies things a little.

Just to pre-answer a question people may ask.. realloc(NULL) works
fine on many architectures. But not on all architectures. To be
perfectly portable we use the malloc(1) trick.

-Tor
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Received on 2011-02-28