multiset::swap
Exchanges the elements of two multisets.
void swap(
multiset<Key, Compare, Allocator>& _Right
);
Parameters
- _Right
The argument multiset providing the elements to be swapped with the target multiset.
Remarks
The member function invalidates no references, pointers, or iterators that designate elements in the two multisets whose elements are being exchanged.
Example
// multiset_swap.cpp
// compile with: /EHsc
#include <set>
#include <iostream>
int main( )
{
using namespace std;
multiset <int> ms1, ms2, ms3;
multiset <int>::iterator ms1_Iter;
ms1.insert( 10 );
ms1.insert( 20 );
ms1.insert( 30 );
ms2.insert( 100 );
ms2.insert( 200 );
ms3.insert( 300 );
cout << "The original multiset ms1 is:";
for ( ms1_Iter = ms1.begin( ); ms1_Iter != ms1.end( ); ms1_Iter++ )
cout << " " << *ms1_Iter;
cout << "." << endl;
// This is the member function version of swap
ms1.swap( ms2 );
cout << "After swapping with ms2, list ms1 is:";
for ( ms1_Iter = ms1.begin( ); ms1_Iter != ms1.end( ); ms1_Iter++ )
cout << " " << *ms1_Iter;
cout << "." << endl;
// This is the specialized template version of swap
swap( ms1, ms3 );
cout << "After swapping with ms3, list ms1 is:";
for ( ms1_Iter = ms1.begin( ); ms1_Iter != ms1.end( ); ms1_Iter++ )
cout << " " << *ms1_Iter;
cout << "." << endl;
}
The original multiset ms1 is: 10 20 30. After swapping with ms2, list ms1 is: 100 200. After swapping with ms3, list ms1 is: 300.
Requirements
Header: <set>
Namespace: std