ceph/src/boost/libs/parameter/test/literate/handling-out-parameters0.cpp

   1
   2 #include <boost/parameter.hpp>
   3
   4 namespace boost
   5 {
   6   int vertex_index = 0;
   7
   8   template <class T = int>
   9   struct dfs_visitor
  10   {};
  11 }
  12
  13 BOOST_PARAMETER_NAME(graph)
  14
  15 BOOST_PARAMETER_NAME(visitor)
  16 BOOST_PARAMETER_NAME(root_vertex)
  17 BOOST_PARAMETER_NAME(index_map)
  18 BOOST_PARAMETER_NAME(color_map)
  19
  20 BOOST_PARAMETER_FUNCTION((void), f, tag,
  21   (required (graph, *))
  22 (optional
  23     (visitor,            *, boost::dfs_visitor<>())
  24     (root_vertex,        *, *vertices(graph).first)
  25     (index_map,          *, get(boost::vertex_index,graph))
  26     (in_out(color_map), *,
  27       default_color_map(num_vertices(graph), index_map) )
  28 )
  29 ) {}
  30