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#include <iostream>
#include <vector>
#include <string>
 
using namespace std;
 
int main()
{
    string strArr[10];
    strArr[0] = string("dd");
    strArr[1] = string("gg");
    strArr[2] = string("tt");
    const vector<string> vecStr(strArr, strArr+6);
    advance(vecStr.begin(), 2);
    cout<<*(vecStr.begin())<<endl; // the output is dd
}

prog.cpp: In function ‘int main()’:
prog.cpp:14:30: error: invalid initialization of non-const reference of type ‘__gnu_cxx::__normal_iterator<const std::basic_string<char>*, std::vector<std::basic_string<char> > >&’ from an rvalue of type ‘std::vector<std::basic_string<char> >::const_iterator {aka __gnu_cxx::__normal_iterator<const std::basic_string<char>*, std::vector<std::basic_string<char> > >}’
     advance(vecStr.begin(), 2);
                              ^
In file included from /usr/include/c++/4.8/bits/stl_algobase.h:66:0,
                 from /usr/include/c++/4.8/bits/char_traits.h:39,
                 from /usr/include/c++/4.8/ios:40,
                 from /usr/include/c++/4.8/ostream:38,
                 from /usr/include/c++/4.8/iostream:39,
                 from prog.cpp:1:
/usr/include/c++/4.8/bits/stl_iterator_base_funcs.h:173:5: error: in passing argument 1 of ‘void std::advance(_InputIterator&, _Distance) [with _InputIterator = __gnu_cxx::__normal_iterator<const std::basic_string<char>*, std::vector<std::basic_string<char> > >; _Distance = int]’
     advance(_InputIterator& __i, _Distance __n)
     ^

Standard output is empty