Re: [Boost-bugs] [Boost C++ Libraries] #8362: Move ctor or assignment for boost::geometry::model::ring?

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #8362: Move ctor or assignment for boost::geometry::model::ring?
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-04-15 00:26:21

#8362: Move ctor or assignment for boost::geometry::model::ring?
------------------------------------------------------+---------------------
  Reporter:  Volker Schöch <vschoech@…>               |       Owner:  mloskot              
      Type:  Support Requests                         |      Status:  new                  
 Milestone:  To Be Determined                         |   Component:  geometry             
   Version:  Boost 1.52.0                             |    Severity:  Cosmetic             
Resolution:                                           |    Keywords:  convert, move, assign
------------------------------------------------------+---------------------

Comment (by mloskot):

 Barend,

 The requested move semantic is one issue, but unless I'm missing
 something, is the ring model supposed to be constructible directly from
 compatible container of compatible points?
 The extension constructor in ring takes iterators only, not container.

 Obviously, this does not compile:

 {{{
 #include <vector>
 #include <boost/geometry.hpp>
 #include <boost/geometry/geometries/ring.hpp>
 #include <boost/geometry/geometries/point_xy.hpp>

 int main()
 {
     typedef boost::geometry::model::d2::point_xy<double> point;
     typedef boost::geometry::model::ring<point> ring;


     std::vector<point> r1;
     ring r2;
     boost::geometry::convert(r1, r2);

     return 0;
 }
 }}}

 Shall I extend the ring to make it constructible from the container too?

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/8362#comment:3>
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