[boost] [type_triats] [move] is_copy_constructible<T> trait

9 Jul 2013

      Hi,

I have an implementation of is_copy_constructible<T> trait. It works great
with C++11, in C++03 it detects constructors assuming that if type is
derived from boost::noncopyable or uses BOOST_MOVABLE_BUT_NOT_COPYABLE
macro - it has no copy constructor.

Questions are:
* May I add that trait to trunk version of Boost.TypeTraits (with
documentation and tests, as usual)?
* May I or Boost.Move maintainer apply this patch to
BOOST_MOVE_IMPL_NO_COPY_CTOR_OR_ASSIGN in boost/move/core.hpp :

#ifdef BOOST_NO_CXX11_DELETED_FUNCTIONS
   #define BOOST_MOVE_IMPL_NO_COPY_CTOR_OR_ASSIGN(TYPE) \
      private:\
      TYPE(TYPE &);\
      TYPE& operator=(TYPE &);\
+      public: \
+      typedef int boost_move_no_copy_constructor_or_assign; \
+      private: \
   //
#else

Why do I need this trait? Well, it allows to implement move_if_noexcept()
that is required for circular_buffer and possibly for other containers.

-- 
Best regards,
Antony Polukhin