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| author | Anas Nashif <anas.nashif@intel.com> | 2013-08-26 08:15:55 -0400 |
|---|---|---|
| committer | Anas Nashif <anas.nashif@intel.com> | 2013-08-26 08:15:55 -0400 |
| commit | bb4dd8289b351fae6b55e303f189127a394a1edd (patch) | |
| tree | 77c9c35a31b1459dd7988c2448e797d142530c41 /boost/graph/graph_archetypes.hpp | |
| parent | 1a78a62555be32868418fe52f8e330c9d0f95d5a (diff) | |
| download | boost-bb4dd8289b351fae6b55e303f189127a394a1edd.tar.gz boost-bb4dd8289b351fae6b55e303f189127a394a1edd.tar.bz2 boost-bb4dd8289b351fae6b55e303f189127a394a1edd.zip | |
Imported Upstream version 1.51.0upstream/1.51.0
Diffstat (limited to 'boost/graph/graph_archetypes.hpp')
| -rw-r--r-- | boost/graph/graph_archetypes.hpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/boost/graph/graph_archetypes.hpp b/boost/graph/graph_archetypes.hpp index 9b364bb814..81f9c2c8a8 100644 --- a/boost/graph/graph_archetypes.hpp +++ b/boost/graph/graph_archetypes.hpp @@ -53,6 +53,8 @@ namespace boost { // should use a different namespace for this typedef void in_edge_iterator; typedef void vertex_iterator; typedef void edge_iterator; + + static vertex_descriptor null_vertex() {return vertex_descriptor();} }; template <typename V, typename D, typename P, typename B> V source(const typename incidence_graph_archetype<V,D,P,B>::edge_descriptor&, @@ -105,6 +107,8 @@ namespace boost { // should use a different namespace for this typedef void out_edge_iterator; typedef void vertex_iterator; typedef void edge_iterator; + + static vertex_descriptor null_vertex() {return vertex_descriptor();} }; template <typename V, typename D, typename P, typename B> @@ -154,6 +158,8 @@ namespace boost { // should use a different namespace for this typedef void in_edge_iterator; typedef void edge_iterator; + + static vertex_descriptor null_vertex() {return vertex_descriptor();} }; template <typename V, typename D, typename P, typename B> |