Re: [Emacs-diffs] emacs-25 3eb93c0: Rely on conservative stack scanning to find "emacs_value"s

[Stefan Monnier]

> That's cheap: you can do it with linear allocation out of an array.
> Why would that be expensive?

That's very expensive compared to doing nothing.

It means that you have to allocate a new array, loop through the old one
calling your "cheap allocation" function on each element, instead of
just passing the array pointer untouched.

Of course, the advantage of your scheme is that you get to do manual
memory management, with the endless hours of fun that entails.

"There's worse, but it's more expensive!"


        Stefan