[Boost-bugs] [Boost C++ Libraries] #7308: Property maps from bundled properties (with base member)

Subject: [Boost-bugs] [Boost C++ Libraries] #7308: Property maps from bundled properties (with base member)
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-08-31 10:23:36

#7308: Property maps from bundled properties (with base member)
-----------------------------------------------------------+----------------
 Reporter:  andreas.zilian@…                               |       Owner:  jewillco
     Type:  Bugs                                           |      Status:  new     
Milestone:  To Be Determined                               |   Component:  graph   
  Version:  Boost 1.51.0                                   |    Severity:  Problem 
 Keywords:  property map, bundled properties, base member  |  
-----------------------------------------------------------+----------------
 In boost 1.50.0 the creation of property maps from a base member in
 bundled properties worked. After the modifications on bundled properties
 in boost 1.51.0 the code below fails compilation (gcc 4.7.1).

 {{{#!c++
 #include "boost/graph/adjacency_list.hpp"

 struct Base          { int    base_value; };
 struct Vertex : Base { double some_value; };

 int main()
 {
         using namespace boost;

         // graph with bundled vertex property
         adjacency_list< vecS, vecS, directedS, Vertex > graph(1);

         // accessing members, works as expected
         graph[ *vertices(graph).first ].some_value = 3.14;
         graph[ *vertices(graph).first ].base_value = 42;

         // property maps from bundled properties
         get( &Vertex::some_value, graph ); // works as expected
         get( &Vertex::base_value, graph ); // works with 1.50.0, fails
 with 1.51.0
 }
 }}}

 The issue is also present for the PBGL.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7308>
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