[Boost-users] Fwd: BGL - bundled properties

From: manitou_at_[hidden]
Date: 2005-03-17 05:07:07

Hello, 

it looks like there is missing the default constructor in the class

 template<typename Graph, typename Descriptor, typename Bundle, typename T>
  struct bundle_property_map
    : put_get_helper<T&, bundle_property_map<Graph, Descriptor, Bundle, T> >

I have just added

 bundle_property_map(){}

into the class and it seems to work alright. However I don't know if this is
a correct solution and the default constructor was just forgotten, or if
this may lead to some unwanted behavior with bundled properties. It would be
nice to get some feedback on this.

Cheers, 

Marc

--- Weitergeleitete Nachricht / Forwarded Message ---
Date: Thu, 17 Mar 2005 01:42:40 +0100 (MET)
From: manitou_at_[hidden]
To: boost-users_at_[hidden]
Subject: BGL - bundled properties

Hello, 

I have encountered some problems with bundled properties in BGL. The
following syntax works:

property_map<CFD2CSM_graph_t, bool CFD2CSM_vertex_t::*>::type is_CSM_map =
get(&CFD2CSM_vertex_t::is_CSM_node, CFD2CSM_graph);

However, if I make two statements out of it I get some type-mismatch error

property_map<CFD2CSM_graph_t, bool CFD2CSM_vertex_t::*>::type is_CSM_map; 
is_CSM_map = get(&CFD2CSM_vertex_t::is_CSM_node, CFD2CSM_graph);

What is the reason for this behavior? Why is the second statement not ok?

Cheers, 

Marc

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