operator== (multiset)
Tests if the multiset object on the left side of the operator is equal to the multiset object on the right side.
bool operator!==(
const multiset <Key, Traits, Allocator>& _Left,
const multiset <Key, Traits, Allocator>& _Right
);
Parameters
_Left
An object of type multiset._Right
An object of type multiset.
Return Value
true if the multiset on the left side of the operator is equal to the multiset on the right side of the operator; otherwise false.
Remarks
The comparison between multiset objects is based on a pairwise comparison of their elements. Two sets or multisets are equal if they have the same number of elements and their respective elements have the same values. Otherwise, they are unequal.
Example
// multiset_op_eq.cpp
// compile with: /EHsc
#include <set>
#include <iostream>
int main( )
{
using namespace std;
multiset <int> s1, s2, s3;
int i;
for ( i = 0 ; i < 3 ; i++ )
{
s1.insert ( i );
s2.insert ( i * i );
s3.insert ( i );
}
if ( s1 == s2 )
cout << "The multisets s1 and s2 are equal." << endl;
else
cout << "The multisets s1 and s2 are not equal." << endl;
if ( s1 == s3 )
cout << "The multisets s1 and s3 are equal." << endl;
else
cout << "The multisets s1 and s3 are not equal." << endl;
}
The multisets s1 and s2 are not equal. The multisets s1 and s3 are equal.
Requirements
Header: <set>
Namespace: std