I'm writing a template which really needs to know about all the base classes of its parameter type. The std::bases
trait proposed by N2965 is perfect for this, however I can't find any reliable information about its status.
Is this proposal still alive? If so, when might we be likely to see it, standardized? If not, are there any other proposals around that would provide this capability?
As a follow-up, g++ has the two N2965 traits available as std::tr2::bases
and std::tr2::direct_bases
. Are there any extensions for Clang and/or Intel that can provide equivalent functionality?
As far as I can tell this was rejected we can see this from N3296: C++ FCD Comment Status Rev 6 which has the following comment:
and the disposition ended up being:
We can find a comment from Jonathan Wakely which points us to the gcc patches email about implementing
N2965
into gcc and he notes that there is no TR2 anymore.I don't see any follow-up proposals for this