RcppDate                C++ classes for receiving date and datetime R
                        objects in C++
RcppExample             Rcpp R / C++ interface example
Rcpp-package            R / C++ interface
RcppParams              C++ class for receiving (scalar) parameters
                        from R
RcppResultSet           C++ class for sending C++ objects back to R
RcppVector              C++ classes for receiving \R object in C++
RcppVersion             Display version info for package and for Rcpp
                        API