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

[Stefan Monnier]

> - From a user's perspective, it removes NULL as a sentinel value to signal
> an error.

In Lisp_Object (and hence in emacs_value) you can have as many sentinel
values as you want already (we typically use Qnil or uninterned symbols
for that).

> - From a developer perspective, it adds low-level complexity,
> bit-twiddling, and possibly undefined behavior to a module that should only
> contain glue code between two interfaces.

I agree, so long as "it" refers to "wide-int".


        Stefan