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- #include <string>
- #include <map>
-
- using namespace std;
-
- typedef multimap<int, string, less<int> > months_type;
-
- //
- // Print out a pair.
- //
- template <class First, class Second>
- ostream& operator<< (ostream& out, const pair<First,Second>& p)
- {
- out << p.second << " has " << p.first << " days";
- return out;
- }
-
- //
- // Print out a multimap.
- //
- ostream& operator<< (ostream& out, months_type l)
- {
- copy(l.begin(),l.end(), ostream_iterator
- <months_type::value_type>(cout,"\n"));
- return out;
- }
-
- int main ()
- {
- //
- // Create a multimap of months and the number of days in the month.
- //
- months_type months;
-
- typedef months_type::value_type value_type;
- //
- // Put the months in the multimap.
- //
- months.insert(value_type(31, string("January")));
- months.insert(value_type(28, string("Febuary")));
- months.insert(value_type(31, string("March")));
- months.insert(value_type(30, string("April")));
- months.insert(value_type(31, string("May")));
- months.insert(value_type(30, string("June")));
- months.insert(value_type(31, string("July")));
- months.insert(value_type(31, string("August")));
- months.insert(value_type(30, string("September")));
- months.insert(value_type(31, string("October")));
- months.insert(value_type(30, string("November")));
- months.insert(value_type(31, string("December")));
- //
- // Print out the months.
- //
- cout << "All months of the year" << endl << months << endl;
- //
- // Find the Months with 30 days.
- //
- pair<months_type::iterator,months_type::iterator> p =
- months.equal_range(30);
- //
- // Print out the 30 day months.
- //
- cout << endl << "Months with 30 days" << endl;
- copy(p.first,p.second,ostream_iterator<months_type::value_type>(cout,"\n"));
-
- return 0;
- }
-
-
-