Hello All!

In my unit tests i use Graph, Test and Assign libraries (boost 1.39, MSVC 2005).

This is an example to reproduce warning:

#include <boost/graph/topological_sort.hpp>
#include <boost/graph/adjacency_list.hpp>
#include <boost/assign.hpp>

#include <vector>

//#include <boost/test/unit_test.hpp>

int main()
{
typedef
    boost::adjacency_list<boost::vecS,
    boost::vecS,
    boost::bidirectionalS>
    G;
typedef
    boost::graph_traits<G>::vertex_descriptor
    V;

typedef std::map<V, boost::default_color_type> Map;

G g;
std::vector<V> sorted;
Map m;

boost::add_vertex(g);

boost::topological_sort(g,
                          std::back_inserter(sorted),
                          color_map(boost::make_assoc_property_map(m)));

//boost::assign::list_of<V>(0);
return 0;
}

I noticed that when i uncomment both `#include <boost/test/unit_test.hpp>` and `boost::assign::list_of<V>(0);`
the warning occur:

boost\graph\depth_first_search.hpp(200) : warning C4267: 'argument' : conversion from 'size_t' to 'unsigned int', possible loss of data

if one of the string is absent there is no warning.

Any thoughts?
--
Regards, Andrey