Is there a functional language for C++ ecosystem?

Question

Java has Scala and .NET has F#. Both of these languages are very highly integrated into the respective Java and .NET platforms. Classes can be written in Scala then extended i

Answer 1

The 'D' language was designed as a successor to C++. A purely functional subset of D is being developed by Andrei Alexandrescu for D 2.0. I am guessing D interoperates well with C++.