I recently noticed that the Boost Type Traits library does not include any traits for member pointers apart from identification. For example, there are no "add member pointer" or "remove member pointer" traits, nor a trait to extract the containing type from a member pointer (ie extract Q from T Q::*). And there is no trait for decomposing member function pointers.
It would appear that these traits could be added fairly easily; I was able to create them within a few minutes, and verify that they worked (with g++). Is there sufficient reason to add them to the library? For me, completeness seems like reason enough (unless it would be a lot of work). On the other hand, member pointers are, as far as I know, rarely used.
So, um... thoughts? Is it a good idea? Should I post my code?
It's been asked for before: https://svn.boost.org/trac/boost/ticket/2011, and there's some start on this in the sandbox - see https://svn.boost.org/trac/boost/browser/sandbox/type_traits/boost/type_trai... - however there was no general agreement over nomenclature last time this was raised, which is largely why this is stalled - that and a lack of time on my part :-( John.