multiset::empty
Tests if a multiset is empty.
bool empty( ) const;
Return Value
true if the multiset is empty; false if the multiset is nonempty.
Example
// multiset_empty.cpp
// compile with: /EHsc
#include <set>
#include <iostream>
int main( )
{
using namespace std;
multiset <int> ms1, ms2;
ms1.insert ( 1 );
if ( ms1.empty( ) )
cout << "The multiset ms1 is empty." << endl;
else
cout << "The multiset ms1 is not empty." << endl;
if ( ms2.empty( ) )
cout << "The multiset ms2 is empty." << endl;
else
cout << "The multiset ms2 is not empty." << endl;
}
The multiset ms1 is not empty. The multiset ms2 is empty.
Requirements
Header: <set>
Namespace: std