On Sat, 11 May 2019 at 00:42, Jonathan Wakely <jwak...@redhat.com> wrote: > > A disabled specialization should not be callable, so move the function > call operator into a new base class which correctly implements the > disabled hash semantics. For the versioned namespace configuration do > not derive from __poison_hash in the enabled case, as the empty base > class serves no purpose but potentially increases the object size. For > the default configuration that base class must be kept, to preserve > layout.
I continue to not be a fan of the versioned namespace ifdeffery in this, but I can live with it.
