id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
8842,BOOST_MOVABLE_BUT_NOT_COPYABLE and is_copy_constructible<T> trait,Antony Polukhin,Ion Gaztañaga,"There is a ticket #8802 to add is_copy_constructible<T> trait. Unfortunately, for correct work of that trait in C++03/C++98 with `BOOST_MOVABLE_BUT_NOT_COPYABLE` macro some changes for Boost.Move are required.

Boost.Move requires the following patch applied to 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
}}}

Some tests for that case already exist in `boost/type_traits/is_copy_constructible.hpp`, I'll uncomment them when this patch will be applied.

Motivation: Without that patch it is impossible to have a nice implementation of `move_if_noexcept`, that is going to be used by Boost.CircularBuffer and may be used by other containers.

P.S.: If you wish and have no spare time, I can apply this patch and add some tests to Boost.Move",Patches,closed,Boost 1.55.0,move,Boost 1.54.0,Showstopper,fixed,,