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Re: malloc attributes and realloc
> I don't know why. But it is no different from grabbing some storage,
> printing the value of its start on stdout and reading it back and use
> it.
Yes, that's what I mean by pointer punning, here you are taking a
pointer value, converting it to a string, and then converting it back to
a pointer. So this is indeed different.
I had always thought that C would allow compacting garbage collection in
the absence of pointer punning. This is the first time I have seen a
suggestion otherwise, and it's rather a marginal case :-)
(PS message transmitted, because the first time I slipped up and it
was not properly threaded)