Thank you all for your input and ideas. It seems this discussion has
clarified the purpose of the Rcpp/RcppTemplate package and further
demonstrated both creating and linking with an external library as well
as utilizing C++ for creating R packages. Moving the Rcpp code base to
a separate library
The R package previously named Rcpp has been renamed to
RcppTemplate (version 1.4), and it is on its way to CRAN.
This is clearer because now RcppTemplate is an R package,
RcppExample is a sample R function, and Rcpp is a C++
class library.
The new package contains the Rcpp class library released