Re: [Boost-bugs] [Boost C++ Libraries] #5816: any_range requires copyable elements

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #5816: any_range requires copyable elements
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-10-18 13:57:20

#5816: any_range requires copyable elements
-------------------------------+------------------------
  Reporter:  bromeon@…         |      Owner:  neilgroves
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  range
   Version:  Boost 1.47.0      |   Severity:  Problem
Resolution:                    |   Keywords:
-------------------------------+------------------------

Comment (by voivoid@…):

 This problem also prevents a use of abstract class pointers. Any chances
 this is going to be fixed?

 I wonder if the problem could be solved with something like this:
 {{{
 any_iterator_interface.hpp
 49,51c49,53
 <             typedef typename remove_const<
 <                 typename remove_reference<Reference>::type
 <             >::type reference_as_value_type;
 ---
 >             typedef typename mpl::if_<
 >                 is_trivially_copy_constructible<typename
 remove_reference<Reference>::type>
 >               , typename remove_const<typename
 remove_reference<Reference>::type>::type
 >               , Reference
 >             >::type reference_as_value_type;
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5816#comment:1>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.