Re: [boost] Bug in graph or properties library

From: Jeremy Siek (jsiek_at_[hidden])
Date: 2001-04-03 11:57:23

Oops, forgot to update that. The property tag class needs to
define num and kind members. The num needs to be a unique integer,
and the kind needs to specify whether the property is for
edge, vertex, or graph.

struct flow_t {
  enum { num = 100 };
  typedef edge_property_tag kind;
};

struct capacity_t { 
  enum { num = 101 };
  typedef edge_property_tag kind;
};

I've updated the docs in CVS.

Cheers,
Jeremy

On Tue, 3 Apr 2001, Kevin S. Van Horn wrote:

kevin_> In the graph library documentation, under "Using adjacency_list"
kevin_> (libs/graph/doc/using_adjacency_list.html), it claims that all I have to
kevin_> do to create a new internal vertex property is to define a tag
kevin_> 
kevin_>   struct my_vertex_property_t { };
kevin_> 
kevin_> and then
kevin_> 
kevin_>   typedef property<my_vertex_property_t, my_property_type> VertexProperty;
kevin_>   typedef adjacency_list<..., ..., ..., VertexProperty> graph_type;
kevin_> 
kevin_> should define the desired graph type.  However, I find that this does not
kevin_> work; I get a compiler error complaining that there is no type named
kevin_> 'kind' in 'struct my_vertex_property_t'.
kevin_> 
kevin_> 
kevin_> 
kevin_> To unsubscribe, send email to: <mailto:boost-unsubscribe_at_[hidden]>
kevin_>  
kevin_> 
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kevin_> 
kevin_> 
kevin_> 

----------------------------------------------------------------------
 Jeremy Siek                        www: http://www.lsc.nd.edu/~jsiek/
 Ph.D. Candidate                  email: jsiek_at_[hidden]
 Univ. of Notre Dame         work phone: [phone]
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