| multiset::operator= |
public member function |
multiset<Key,Compare,Allocator>&
operator= ( const multiset<Key,Compare,Allocator>& x ); |
|
Copy container content
Assigns a copy of the elements in x as the new content for the container.
The elements contained in the object before the call are dropped, and replaced by copies of those in multiset x, if any.
After a call to this member function, both the multiset object and x will have the same size and compare equal to each other.
Parameters
- x
- A multiset object with the same class template parameters (Key, Compare and Allocator).
Return value
*thisExample
// assignment operator with multisets
#include <iostream>
#include <set>
using namespace std;
int main ()
{
int myints[]={ 19,81,36,36,19 };
multiset<int> first (myints,myints+5); // multiset with 5 ints
multiset<int> second; // empty multiset
second=first; // now second contains the 5 ints
first=multiset<int>(); // and first is empty
cout << "Size of first: " << int (first.size()) << endl;
cout << "Size of second: " << int (second.size()) << endl;
return 0;
}
|
Output:
Size of first: 0
Size of second: 5
|
Complexity
Linear on
sizes (destruction, copy construction).
See also
