- releases ownership of the pointer. A no-op (and returns nullptr)
for references.
Naming consistent with unique_ptr and autoPtr.
DOC: adjust wording for memory-related classes
- add is_const() method for tmp, refPtr.
Drop (ununsed and confusing looking) isTmp method from refPtr
in favour of is_pointer() or movable() checks
ENH: noexcept for some pTraits methods, remove redundant 'inline'
- test for const first for tmp/refPtr (simpler logic)