print all elements in a deque

/* The following code example is taken from the book * "The C++ Standard Library - A Tutorial and Reference" * by Nicolai M. Josuttis, Addison-Wesley, 1999 * * (C) Copyright Nicolai M. Josuttis 1999. * Permission to copy, use, modify, sell and distribute this software * is granted provided this copyright notice appears in all copies. * This software is provided "as is" without express or implied * warranty, and with no claim as to its suitability for any purpose. */#include <iostream>#include <deque>#include <string>#include <algorithm>#include <iterator>using namespace std;int main(){    // create empty deque of strings    deque<string> coll;    // insert several elements    coll.assign (3, string("string"));    coll.push_back ("last string");    coll.push_front ("first string");    // print elements separated by newlines    copy (coll.begin(), coll.end(),          ostream_iterator<string>(cout,"\n"));    cout << endl;}/* first stringstringstringstringlast string */