With Boost.Bimap you can create associative containers in which both types can be used as key. A bimap<X,Y> can be thought of as a combination of a std::map<X,Y> and a std::map<Y,X>. The learning curve of bimap is almost flat if you know how to use standard containers. A great deal of effort has been put into mapping the naming scheme of the STL in Boost.Bimap. The library is designed to match the common STL containers.

The library has been tested under several OS and compilers, and it is currently in beta state.

Online Docs
An online version of the docs is maintained here.

Subversion Repository
To check out the latest available sources use svn on this url:
https://www.boost-consulting.com:8443/svn/main/boost/soc/2006/misc/trunk/

Features request and Bug tracking
For the moment, the project uses Trac. Leave your complaints and requests here.

Zipped Packages
An almost-Estable version of the Docs and Sources are maintained and updated regularly. If you want the latest version checkout the svn repository. The same zipped package of sources has been uploaded to the Boost Vault at Containers/bimap_sources.zip.

Discussing and Support
You can use the boost user list or the boost developer list depending on your questions. There is also a non-regulated group about my SoC projects where you can discuss about bimaps.

Contact
If you want you can contact me directly, mail to matias {dot} capeletto {at} gmail {dot} com.

Updates and news
Updates will be announced in MC++ and in boost developer list.