Re: master 724af76 2/2: Fix sxhash-equal on bytecodes, markers, etc.

[Pip Cet]

On Tue, Jan 7, 2020 at 7:29 PM Paul Eggert <address@hidden> wrote:
> +       else if (pvec_type == PVEC_MARKER)
> +         {
> +           ptrdiff_t bytepos
> +             = XMARKER (obj)->buffer ? XMARKER (obj)->bytepos : 0;
> +           hash = sxhash_combine ((intptr_t) XMARKER (obj)->buffer, bytepos);
> +           hash = SXHASH_REDUCE (hash);
> +         }

Again, I don't think there's any reason for using markers as keys in
an equal-based hash table. But if you do, what you probably meant was
to use an eq-based hash table, and that used to work; now it doesn't.

(puthash marker value ht)
<...move marker...>
(gethash marker ht)

won't work.