Erase an element with key as -1 from the multimap : multimap erase « map multimap « C++ Tutorial

1. C++ Tutorial
2. map multimap
3. multimap erase

#include <map>
#include <iostream>
#include <string>

using namespace std;

typedef multimap <int, string> MULTIMAP_INT_STRING;

int main ()
{
    MULTIMAP_INT_STRING  mmapIntToString;

    mmapIntToString.insert (MULTIMAP_INT_STRING::value_type (3, "Three"));
    mmapIntToString.insert (MULTIMAP_INT_STRING::value_type(45, "Forty Five"));

    // Eraseing an element with key as -1 from the multimap
    if (mmapIntToString.erase (-1) > 0)
        cout << "Erased all pairs with -1 as key." << endl;

    MULTIMAP_INT_STRING::const_iterator iPairLocator;

    // Print the contents of the multimap to the screen
    for ( iPairLocator = mmapIntToString.begin ()
        ; iPairLocator != mmapIntToString.end ()
        ; ++ iPairLocator )
    {
        cout << "Key: " << iPairLocator->first;
        cout << ", Value: " << iPairLocator->second.c_str () << endl;
    }

    return 0;
}