bug#22689: [PATCH] Add logcount

[Eli Zaretskii]

> Date: Sat, 30 Sep 2017 12:03:31 -0400
> From: Mark Oteiza <mvoteiza@udel.edu>
> Cc: 22689@debbugs.gnu.org
> 
> > > I tried implementing your comments (and added a test).  I don't know
> > > what to do in the #else for ULONG_LONG_MAX.
> > 
> > Same as you do for ULONG_MAX, I think.
> 
> so the following?
> 
>   else if (v <= ULONG_MAX || v <= ULONG_LONG_MAX)
>       XSETINT (res, logcount64 (v));

Yes.