Application oriented C++ language extensions

[Paul Budnik]

The operator overloading and object oriented features of C++ form an
excellent framework for providing high level application oriented
language extensions via class libraries. Such extensions will be of
greatest value if they can play together.

For example I am developing a C++ based tool for digital signal 
processing and will want to add image processing and matrix
operations. The code for the DSP operations is proprietary.
However, the language notation ideally will conform to (or become)
a public domain industry standard. 

Is there any group or organization coordinating such C++ application
oriented class libraries or interest in starting such
a group? A formal standards process would be premature, but having
some focus for collecting information and airing issues would be
valuable.

Paul Budnik