vector<Type>::iterator nth = v.begin() + index;

std::vector<>::iterator it = ( v.begin() + index );

std::vector<>::iterator it = v.begin();
std::advance( it, index );

vector<int>::iterator i = L.begin();
advance(i, 2);

int main()
{

void foo(const char *);

sdt::vector<char> vec;
vec.push_back('h');
vec.push_back('e');
vec.push_back('l');
vec.push_back('l');
vec.push_back('o');
vec.push_back('/0');

foo(&vec[0]);
}

vector.insert(pos, &vec[first_index], &vec[last_index]);