[Boost-users] BGL distance recorder

Hello, I am wondering if there is not a documentation bug. The distance_recorder<DistanceMap, EventTag> manual page states: DistanceMap A WritablePropertyMap, where the key type and the value type are the vertex descriptor type of the graph. Shouldn't the value type be something like int. After all it is a distance measured in the number of hops in the graph. Also writing my own DistanceMap I had to also provide the function get in order that it compiles. So the DistanceMap should be Readable as well. andreas