Merge branch 'master' into meyer/lscsr-perf

Author: meyerzinn

libgalois/include/galois/graphs/LS_LC_CSR_Graph.h

@@ -259,6 +259,20 @@ class LS_LC_CSR_Graph : private boost::noncopyable {
     }
   }
 
+  /*
+   * Iterates over the outgoing edges, calling the callback with the
+   * VertexTopologyID of each edge.
+   */
+  template <typename Callback>
+  void for_each_edge(VertexTopologyID vertex, Callback const& callback) {
+    auto const& vertex_meta = m_vertices[vertex];
+    EdgeMetadata const* begin =
+        &getEdgeMetadata(vertex_meta.buffer, vertex_meta.begin);
+    for (uint64_t i = 0; i < vertex_meta.degree(); ++i) {
+      callback(static_cast<VertexTopologyID>(*begin++));
+    }
+  }
+
   /*
    * Sort the outgoing edges for the given vertex.
    */