> I don't see anything in that thread that suggests this is a bug. I think
> Steve's statement that the limitation can be worked around by using
> make_variant_over is no longer valid
...and this is the bug (i.e. undesired behavior), isn't it.
> since some pretty crucial variant
> visitation code uses preprocessor metaprogramming and
> BOOST_VARIANT_LIMIT_SIZE is central to this (take a look at
> BOOST_VARIANT_VISITATION_UNROLLING_LIMIT in visitation_impl.hpp). Perhaps
> this is something new since that thread (2008) - however I don't see
> anything in the release notes from 145 to 147 which would suggest that
> something changed here (145 is the version I upgraded from when this last
> worked for me).
Yes, that's what I wrote in the original post (see the link there):
some optimization was made in 1.46, it was not reflected in the
release notes, and I guess this change caused the issue we're talking
about.
Maybe Steven could shed some light on this.