//======================================================================= // Copyright 2002 Indiana University. // Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek // // Distributed under the Boost Software License, Version 1.0. (See // accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) //======================================================================= #include #include #include #include #include typedef boost::default_constructible_archetype< boost::sgi_assignable_archetype<> > dist_value; // So generate_infinity works... namespace std { template <> class numeric_limits< dist_value > { public: static dist_value max BOOST_PREVENT_MACRO_SUBSTITUTION() { return boost::static_object< dist_value >::get(); } }; } dist_value abs(const dist_value& x) { return x; } std::size_t abs(std::size_t x) { return x; } int main() { using namespace boost; typedef default_constructible_archetype< sgi_assignable_archetype< equality_comparable_archetype<> > > vertex_t; { typedef incidence_graph_archetype< vertex_t, directed_tag, allow_parallel_edge_tag > IncidenceGraph; typedef vertex_list_graph_archetype< vertex_t, directed_tag, allow_parallel_edge_tag, IncidenceGraph > graph_t; graph_t& g = static_object< graph_t >::get(); vertex_t s; typedef graph_traits< graph_t >::edge_descriptor edge_t; readable_property_map_archetype< edge_t, std::size_t > weight; readable_property_map_archetype< vertex_t, int > index; read_write_property_map_archetype< vertex_t, std::size_t > distance; dijkstra_shortest_paths(g, s, vertex_index_map(index).weight_map(weight).distance_map(distance)); dijkstra_shortest_paths_no_color_map(g, s, vertex_index_map(index).weight_map(weight).distance_map(distance)); } { typedef incidence_graph_archetype< vertex_t, directed_tag, allow_parallel_edge_tag > IncidenceGraph; typedef vertex_list_graph_archetype< vertex_t, directed_tag, allow_parallel_edge_tag, IncidenceGraph > Graph; vertex_t s; typedef graph_traits< Graph >::edge_descriptor edge_t; readable_property_map_archetype< edge_t, std::size_t > weight; typedef property_graph_archetype< Graph, vertex_index_t, std::size_t > graph_t; graph_t& g = static_object< graph_t >::get(); read_write_property_map_archetype< vertex_t, vertex_t > pred; dijkstra_shortest_paths(g, s, predecessor_map(pred).weight_map(weight)); dijkstra_shortest_paths_no_color_map( g, s, predecessor_map(pred).weight_map(weight)); } { typedef incidence_graph_archetype< vertex_t, directed_tag, allow_parallel_edge_tag > IncidenceGraph; typedef vertex_list_graph_archetype< vertex_t, directed_tag, allow_parallel_edge_tag, IncidenceGraph > Graph; vertex_t s; typedef property_graph_archetype< Graph, edge_weight_t, std::size_t > graph_t; graph_t& g = static_object< graph_t >::get(); read_write_property_map_archetype< vertex_t, vertex_t > pred; readable_property_map_archetype< vertex_t, int > index; dijkstra_shortest_paths( g, s, predecessor_map(pred).vertex_index_map(index)); dijkstra_shortest_paths_no_color_map( g, s, predecessor_map(pred).vertex_index_map(index)); } { typedef incidence_graph_archetype< vertex_t, directed_tag, allow_parallel_edge_tag > IncidenceGraph; typedef vertex_list_graph_archetype< vertex_t, directed_tag, allow_parallel_edge_tag, IncidenceGraph > graph_t; graph_t& g = static_object< graph_t >::get(); vertex_t s; typedef graph_traits< graph_t >::edge_descriptor edge_t; readable_property_map_archetype< edge_t, dist_value > weight; readable_property_map_archetype< vertex_t, int > index; read_write_property_map_archetype< vertex_t, color_value_archetype > color; read_write_property_map_archetype< vertex_t, dist_value > distance; typedef binary_function_archetype< dist_value, dist_value, dist_value > Combine; Combine combine = static_object< Combine >::get(); typedef binary_predicate_archetype< dist_value, dist_value > Compare; Compare compare = static_object< Compare >::get(); dijkstra_visitor<> vis; dijkstra_shortest_paths(g, s, color_map(color) .vertex_index_map(index) .weight_map(weight) .distance_map(distance) .distance_combine(combine) .distance_compare(compare) .visitor(vis)); dijkstra_shortest_paths_no_color_map(g, s, vertex_index_map(index) .weight_map(weight) .distance_map(distance) .distance_combine(combine) .distance_compare(compare) .visitor(vis)); } return 0; }