multimap can return the number of pairs with the same key : multimap « map multimap « C++ Tutorial

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C++ Tutorial » map multimap » multimap

23.11.2.multimap can return the number of pairs with the same key

#include <map>

#include <iostream>



using namespace std;



typedef map <int, string> MAP_INT_STRING;

typedef multimap <int, string> MMAP_INT_STRING;



int main ()

{

    MMAP_INT_STRING mmapIntToString;



    mmapIntToString.insert (MMAP_INT_STRING::value_type (3, "Three"));

    mmapIntToString.insert (MMAP_INT_STRING::value_type (45, "Forty Five"));



    cout << "The number of pairs in the multimap with 1000 as their key: "

        << mmapIntToString.count (1000) << endl;



    return 0;

}

23.11.multimap
	23.11.1.	A multimap can store duplicates
	23.11.2.	multimap can return the number of pairs with the same key
	23.11.3.	Instantiating an STL map and multimap (Key Type: integer, Value Type: string)
	23.11.4.	make a dictionary out of a multimap

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