Borland 6 Graph example 1

From: chongwhite001 (christian_chongwhite_at_[hidden])
Date: 2002-10-23 21:57:42

Hi All,
I am attempting to run the 1st example (file dependancy) of Boost 
Graph library with Borland C++Builder 6.
It compiles ok but crashes when run in exception.hpp with a call, or 
rather THROW to negative_edge exception.  If anyone can provide any 
light into this I would be most grateful.  (details below)
Thanks
Christian

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Fault occurs in:
dijkstra_shortest_paths.hpp:
     void examine_edge(Edge e, Graph& g) { 
        if (m_compare(get(m_weight, e), m_zero))
          throw negative_edge();
        m_vis.examine_edge(e, g);
      }
 
The actual fault is in exception.hpp at the point:

  struct negative_edge : public bad_graph {
    negative_edge()
      : bad_graph("The graph may not contain an edge with negative 
weight."){ }
  };

The error is:

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Debugger Exception Notification
---------------------------
Project Boost_Ex1_Console.exe raised exception class 
boost::negative_edge with message 'Exception Object Address: 
0x896912'. Process stopped. Use Step or Run to continue.
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OK   Help   
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