Re: [Boost-users] Maps: one-to-one one-to-many many-to-many

Travis Parks wrote:

I have always been interested in a data structure for storing pairs of of keys. In math it is a one-to-one mapping. I find it useful from time to time to have a container that allows me to treat it like an enum, but then to do the operation the other way. I usually do it lazily and just do a map and then do a linear search for the value when I need to.

Look at http://www.boost.org/libs/multi_index/doc/index.html this does all you want. John.