ceph/src/boost/libs/graph/example/remove_edge_if_dir.expected

   1 original graph:
   2 0 --> 3 2 3
   3 1 --> 3
   4 2 --> 0
   5 3 --> 2
   6
   7 removing edges (0,3)
   8 0 --> 2
   9 1 --> 3
  10 2 --> 0
  11 3 --> 2
  12 removing edge (0,2) and (3, 2)
  13 0 -->
  14 1 --> 3
  15 2 --> 0
  16 3 -->