Hi everybody,
1. I am trying to create an Rcpp list, each of whose elements contain an
uniform_int_distribution object.
2. My understanding is that since an uniform_int_distribution object is a
non-SEXP one, I need to create a specialization of wrap() first.
3. To this end, I am using the following (sample) piece of code:
#include <RcppCommon.h>
#include <random>
namespace Rcpp {
template <> SEXP wrap(const std::uniform_int_distribution<int> &d);
}
#include <Rcpp.h>
using namespace Rcpp;
// [[Rcpp::export]]
Rcpp::List List_of_Distributions() {
Rcpp::List DISTR(2);
std::uniform_int_distribution<int> dist_1(0, 5);
std::uniform_int_distribution<int> dist_2(0, 6);
DISTR[0] = Rcpp::wrap(dist_1); DISTR[1] = Rcpp::wrap(dist_2);
return DISTR;
}
/*** R
List_of_Distributions()
*/
4. The compilation fails with a message
Error in
dyn.load("/var/folders/12/bqytpkx93w97r3s3_h9q9k_00000gn/T//Rtmpm2tVkx/sourcecpp_f9e75ec42b87/sourceCpp_220.so")
:
unable to load shared object
'/var/folders/12/bqytpkx93w97r3s3_h9q9k_00000gn/T//Rtmpm2tVkx/sourcecpp_f9e75ec42b87/sourceCpp_220.so':
dlopen(/var/folders/12/bqytpkx93w97r3s3_h9q9k_00000gn/T//Rtmpm2tVkx/sourcecpp_f9e75ec42b87/sourceCpp_220.so,
6): Symbol not found:
__ZN4Rcpp4wrapINSt3__124uniform_int_distributionIiEEEEP7SEXPRECRKT_
Referenced from:
/var/folders/12/bqytpkx93w97r3s3_h9q9k_00000gn/T//Rtmpm2tVkx/sourcecpp_f9e75ec42b87/sourceCpp_220.so
Expected in: flat namespace
in
/var/folders/12/bqytpkx93w97r3s3_h9q9k_00000gn/T//Rtmpm2tVkx/sourcecpp_f9e75ec42b87/sourceCpp_220.so
5. I am working on OS X Mavericks and use clang-omp compiler
Can somebody possibly direct me to what I may be doing wrong here. Apologies
if the question seems too basic to you.
Thank you in advance.
Anguel
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