The Boost.Geometry (aka Generic Geometry Library, GGL) provides a generic implementation of geometry algorithms, working with geometry types provided by the library itself as well as user-defined types. It also provides the implementation of R-tree spatial index.
The library is implemented in C++ programming language with extensive use of elements of metaprogramming like class (type) templates, static polymorphism and compile-time execution. Consequently, Boost.Geometry is built upon foundation of C++ Standard Library and Boost C++ Libraries.
Reporting bugs: http://www.boost.org/development/bugs.html