1: //back_inserters.cpp
3: #include <iostream>
4: #include <vector>
5: #include <deque>
6: #include <list>
7: #include <iterator>
8: #include <algorithm>
9: using namespace std;
11: int main()
12: {
13: cout << "\nThis program illustrates the use of a \"back_inserter\", "
14: "which can be used\nif the recipient container supports the "
15: "push_back() member function.";
16: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
18: cout << "\nFirst we display five integers from a vector:\n";
19: vector<int> v;
20: for (int i=1; i<=5; i++) v.push_back(i);
21: copy(v.begin(), v.end(), ostream_iterator<int>(cout, " "));
22: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
24: cout << "\nThen we copy the five integers from that vector into "
25: "an empty deque,\nusing a \"back_inserter\", and then "
26: "display the deque to confirm:\n";
27: deque<int> d;
28: copy(v.begin(), v.end(), back_inserter(d));
29: copy(d.begin(), d.end(), ostream_iterator<int>(cout, " "));
30: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
32: cout << "\nFinally, we copy the same five integers from the vector "
33: "into an empty list,\nagain using a \"back_inserter\", and again "
34: "displaying the list to confirm:\n";
35: list<int> lst;
36: copy(v.begin(), v.end(), back_inserter(lst));
37: copy(lst.begin(), lst.end(), ostream_iterator<int>(cout, " "));
38: cout << "\nPress Enter to continue ... "; cin.ignore(80, '\n');
39: }