stl:multiset:empty

empty

Syntax:

    #include <set>
    bool empty() const;

The empty() function returns true if the multiset has no elements, false otherwise.

For example, the following code uses empty() as the stopping condition on a while loop to clear a multiset and display its contents in reverse order:

    multiset<int> ms;
    for( int i = 0; i < 5; i++ ) {
      ms.insert(i);
    }
    while( !ms.empty() ) {
        multiset<int>::iterator iter = ms.end();
        iter--;
        cout << *iter << endl;
        ms.erase( iter );
    }