#include <Rcpp.h>
#include <Rcpp/String.h>

using namespace Rcpp ;

// [[Rcpp::export]]
CharacterVector character_iterator1( const CharacterVector letters ){
    std::string res ;
    CharacterVector::const_iterator first = letters.begin() ;
    CharacterVector::const_iterator last = letters.end() ;
    while( first != last ){
        *first = String("dan");
        ++first ;
    }
    return letters ;
}

// R code
# library(Rcpp11)
# library(attributes)
#
# sourceCpp("test.cpp")
#
# v <- letters
# result <- character_iterator1(v)
# result
# v