// Fig. 23.21: Fig23_21.cpp
// Standard Library class multimap test program.
#include <iostream>
using std::cout;
using std::endl;

#include <map> // map class-template definition

// define short name for multimap type used in this program
typedef std::multimap< int, double, std::less< int > > Mmid;

int main()
{
   Mmid pairs; // declare the multimap pairs

   cout << "There are currently " << pairs.count( 15 )
      << " pairs with key 15 in the multimap\n";

   // insert two value_type objects in pairs
   pairs.insert( Mmid::value_type( 15, 2.7 ) );
   pairs.insert( Mmid::value_type( 15, 99.3 ) );
   
   cout << "After inserts, there are " << pairs.count( 15 )
      << " pairs with key 15\n\n";
   
   // insert five value_type objects in pairs
   pairs.insert( Mmid::value_type( 30, 111.11 ) );
   pairs.insert( Mmid::value_type( 10, 22.22 ) );
   pairs.insert( Mmid::value_type( 25, 33.333 ) );
   pairs.insert( Mmid::value_type( 20, 9.345 ) );
   pairs.insert( Mmid::value_type( 5, 77.54 ) );
   
   cout << "Multimap pairs contains:\nKey\tValue\n";
   
   // use const_iterator to walk through elements of pairs
   for ( Mmid::const_iterator iter = pairs.begin();
      iter != pairs.end(); ++iter )
      cout << iter->first << '\t' << iter->second << '\n';

   cout << endl;
   return 0;
} // end main

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