Function RCPP_MODULE

inst/skeleton/stdVector.cpp:54–90

double vec_at(vec *obj, int i){ return obj->at(i) ; }

RCPP_MODULE(stdVector){
    using namespace Rcpp ;

    // we expose the class std::vector<double> as "vec" on the R side
    class_<vec>("vec")

    // exposing the default constructor
    .constructor()

    // exposing member functions -- taken directly from std::vector<double>
    .method( "size",     &vec::size)
    .method( "max_size", &vec::max_size)
    .method( "capacity", &vec::capacity)
    .method( "empty",    &vec::empty)
    .method( "reserve",  &vec::reserve)
    .method( "pop_back", &vec::pop_back )
    .method( "clear",    &vec::clear )

    // specifically exposing const member functions defined above
    .method( "back",     &vec_back )
    .method( "front",    &vec_front )
    .method( "at",       &vec_at )

    // exposing free functions taking a std::vector<double>*
    // as their first argument
    .method( "assign",   &vec_assign )
    .method( "insert",   &vec_insert )
    .method( "as.vector",&vec_asR )
    .method( "push_back",&vec_push_back )
    .method( "resize",   &vec_resize)

    // special methods for indexing
    .method( "[[",       &vec_at )
    .method( "[[<-",     &vec_set )

    ;
}