Hi All, Thanks to Dirk Eddelbuettel and the other contributors for such a wonderful package. Rcpp really transforms the way that I've been able to incorporate c++ code into R. Makes it possible to speed up the critical computations while keeping all the great flexibility and features of R.
I've run into a problem lately with particularly large vectors in Rcpp. I seem to be overflowing when my vectors get larger than 2^31 elements on a 64 bit system. It looks from the code of both the classic (included below) and the newer versions as though this is due to using ints rather than something like size_t (http://en.wikipedia.org/wiki/Size_t) as the type for size and indexing into the vector. It looks like RcppResultsSet's add() functions may also be using ints. Curious to know if there is a particular reason for using ints rather than something like size_t and if the project managers would be open to changing to accomodate larger vectors. Thanks, -Chuck Sugnet template <typename T> class RcppVector { public: typedef T* iterator ; typedef const T* const_iterator ; RcppVector(SEXP vec); RcppVector(int len); int size() const; T& operator()(int i) const; T *cVector() const; std::vector<T> stlVector() const; inline const_iterator begin() const { return v ; } inline const_iterator end() const { return v + len ; } inline iterator begin(){ return v ; } inline iterator end(){ return v + len ; } private: int len; T *v; }; _______________________________________________ Rcpp-devel mailing list Rcpp-devel@lists.r-forge.r-project.org https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
