ceph/src/boost/libs/graph/test/filter_graph_vp_test.cpp

   1 //=======================================================================
   2 // Copyright 2002 Indiana University.
   3 // Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek
   4 //
   5 // Distributed under the Boost Software License, Version 1.0. (See
   6 // accompanying file LICENSE_1_0.txt or copy at
   7 // http://www.boost.org/LICENSE_1_0.txt)
   8 //=======================================================================
   9
  10 #include <boost/graph/filtered_graph.hpp>
  11 #include <boost/graph/adjacency_list.hpp>
  12 using namespace boost;
  13
  14 // Check to make you can apply a vertex filter with the
  15 // make_filtered_graph function, to fix bug #480175.
  16
  17 struct NotMuchOfAFilter
  18 {
  19     template<class Vertex> bool operator()(Vertex key)
  20     const { return true; }
  21 };
  22
  23 int main()
  24 {
  25     adjacency_list<> graph;
  26     make_filtered_graph(graph, keep_all(), NotMuchOfAFilter());
  27 }