multimap.cpp

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#include "stlexam.h"
#pragma hdrstop
/**************************************************************************
 *
 * multimap.cpp - Example program for multimap class.
 *                See Class Reference Section
 *
 ***************************************************************************
 *
 * (c) Copyright 1994, 1998 Rogue Wave Software, Inc.
 * ALL RIGHTS RESERVED
 *
 * The software and information contained herein are proprietary to, and
 * comprise valuable trade secrets of, Rogue Wave Software, Inc., which
 * intends to preserve as trade secrets such software and information.
 * This software is furnished pursuant to a written license agreement and
 * may be used, copied, transmitted, and stored only in accordance with
 * the terms of such license and with the inclusion of the above copyright
 * notice.  This software and information or any other copies thereof may
 * not be provided or otherwise made available to any other person.
 *
 * Notwithstanding any other lease or license that may pertain to, or
 * accompany the delivery of, this computer software and information, the
 * rights of the Government regarding its use, reproduction and disclosure
 * are as set forth in Section 52.227-19 of the FARS Computer
 * Software-Restricted Rights clause.
 * 
 * Use, duplication, or disclosure by the Government is subject to
 * restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in
 * Technical Data and Computer Software clause at DFARS 252.227-7013.
 * Contractor/Manufacturer is Rogue Wave Software, Inc.,
 * P.O. Box 2328, Corvallis, Oregon 97339.
 *
 * This computer software and information is distributed with "restricted
 * rights."  Use, duplication or disclosure is subject to restrictions as
 * set forth in NASA FAR SUP 18-52.227-79 (April 1985) "Commercial
 * Computer Software-Restricted Rights (April 1985)."  If the Clause at
 * 18-52.227-74 "Rights in Data General" is specified in the contract,
 * then the "Alternate III" clause applies.
 *
 **************************************************************************/
#include <string>
#include <map>

#ifdef _RW_STD_IOSTREAM
#include <iostream>
#else
#include <iostream.h>
#endif     

#ifndef _RWSTD_NO_NAMESPACE
namespace std {
#endif        
  typedef multimap<int, string, less<int>,allocator<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,char,char_traits<char> >(cout,"\n"));
    return out;
  }
#ifndef _RWSTD_NO_NAMESPACE
} 
#endif        

int main ()
{
#ifndef _RWSTD_NO_NAMESPACE
  using namespace std;
#endif        

  //
  // 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,char,char_traits<char> >(cout,"\n"));
  
  return 0;
}