[Rcpp-devel] Possible inconsistency in Rcpp vs stl in erase(iterator, iterator)

Thanks. I'll have a look.

Le 05/06/13 14:09, Toni Giorgino a ?crit :

Dears,

I am a newbie to Rcpp.  I may have found an off-by-one inconsistency in
the handling of  List::erase(iter1,iter2) operation with respect to its
homologous in the STL (which I suppose is intended to mimic).  In STL,
iter2 can be the container's .end(); in Rcpp, the same gives an out of
boundary error. (See below)

Thanks for the incredible package. Best

Test case...

#include <Rcpp.h>
#include <iostream>

// [[Rcpp::export]]
SEXP truncateTest() {
BEGIN_RCPP

   using namespace std;
   Rcpp::List l;
   std::vector<int> v;

   for (int i=1; i<=10; i++) {
     v.push_back(i);
     l.push_back(i);
   }

   v.erase(v.begin()+5,v.end()-1);
   l.erase(l.begin()+5,l.end()-1); // ?

   cout << "std::vector left with " << v.size() << endl;
   cout << "Rcpp::List  left with " << l.size() << endl;

END_RCPP
}

/*** R
#  library(Rcpp)
#  sourceCpp("truncateTest.cpp")
#  truncateTest()
#  #prints 6 and 5
*/