Solving The Expression Problem In C Plus Plus , A La Lms

We give a C++ solution to the Expression Problem that takes a components-for-cases approach. Our solution is a C++ transliteration of how Lightweight Modular Staging solves the Expression Problem. It, furthermore, gives a C++ encoding to object algebras and object algebra interfaces. We use our latter encoding by tying its recursive knot as in Datatypes a la Carte.