[Boost-users] Can not compile 'adj_list_ra_edgelist.cpp'

16 Feb 2008

      Hi, everyone

'adj_list_ra_edgelist.cpp' is a simple example of bgl, but I can not compile
it with gcc 3.4.4 on cygwin/windows xp. Following are the codes:

#include <boost/config.hpp>
...
#include <iostream>
#include <boost/graph/adjacency_list.hpp>
int
main()
{
  using namespace boost;
  typedef adjacency_list<vecS, vecS, bidirectionalS, no_property,
    property<int, edge_weight_t, property<int, edge_index_t> >,
    no_property, vecS> Graph;
const std::size_t n = 3;
  typedef std::pair<std::size_t, std::size_t> E;
  E edge_array[] = { E(0,1), E(0,2), E(0,1) };
  const std::size_t m = sizeof(edge_array) / sizeof(E);
  Graph g(edge_array, edge_array + m, n);
  for (std::size_t i = 0; i < m; ++i)
    std::cout << edges(g).first[i] << " ";
  std::cout << std::endl;
return 0;
}
The error  is located  in  the line 28, i.e. edges(g).first[i]. I think
edges(g).first has the type of adjacency_list::edge_iterator. But how can I
understand 'edges(g).first[i]'?

Thanks,
Timothy Zhang

[Boost-users] Can not compile 'adj_list_ra_edgelist.cpp'

yi zhang