[Boost-bugs] [Boost C++ Libraries] #8802: Add is_copy_constructible<T> trait

Subject: [Boost-bugs] [Boost C++ Libraries] #8802: Add is_copy_constructible<T> trait
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-07-09 07:18:44

#8802: Add is_copy_constructible<T> trait
-------------------------------------------------+-------------------------
 Reporter:  apolukhin                            |      Owner:  johnmaddock
     Type:  Feature Requests                     |     Status:  new
Milestone:  Boost 1.55.0                         |  Component:  type_traits
  Version:  Boost 1.54.0                         |   Severity:  Problem
 Keywords:  has_copy_constructor                 |
  is_copy_constructible move traits              |
-------------------------------------------------+-------------------------
 Add an implementation of `is_copy_constructible<T>` trait. It must work
 with C++11 and in C++03 it must detect constructors assuming that if type
 is derived from `boost::noncopyable` or uses
 BOOST_MOVABLE_BUT_NOT_COPYABLE macro - it has no copy constructor.

 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
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/8802>
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