From: Arkadiy Vertleyb (vertleyb_at_[hidden])
Date: 2005-06-09 14:16:11
"jarvi" <jarvi_at_[hidden]> wrote
> The main point was that the result_of template needs to
> detect whether the BOOST_TYPEOF will succeed (all relevant
> types/templates have been typeof-registered),
> and if it will not succeed, then follow the list of steps specified
> in the TR1.
Well, I am afraid this might not be possible with current
BOOST_TYPEOF --Types/templates not registerd just result in compile error
:-(
Come to think about it, this doesn't have to stay this way. I havn't tried
it, but it seems possible to just put some well-known type in place of
not-registered one, for example, something like this:
"std::pair<std::vector<boost::type_of::not_registered>, int>"
or maybe just
"boost::type_of::not_registered"
This way the fact that types are not registered can be used in
meta-programs. The drawback -- it's unclear what's not registered. So
maybe we need some sort of combination of both.
Again, *I think* it's possible, but I am not in a position to verify this
until later in the evening... Is it something that would be of interest?
Regards,
Arkadiy
Regards,
Arkadiy