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Re: extract_data_from_object considered dangerous

From: Stefan Monnier
Subject: Re: extract_data_from_object considered dangerous
Date: Sun, 22 Sep 2019 16:53:05 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux)

> The original idea was to use the pointer right away, so that GC
> couldn't happen.

Indeed, I think that it might be the case that currently this problem is
only hypothetical, but relying on "the GC probably can't happen now" is
too fragile for my taste.

> If we want to lift this restriction, I think the
> function should return a Lisp object, not a char *.

That's also my impression, but I was wondering is there was a good
reason why it wasn't done this way in the first place.


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