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set::operator=
public member function
set<Key,Compare,Allocator>&
operator= ( const set<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 set x, if any.
After a call to this member function, both the set object and x will have the same size and compare equal to each other.
Parameters
- x
- A set object with the same class template parameters (Key, Compare and Allocator).
Return value
*this
Example
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// assignment operator with sets
#include <iostream>
#include <set>
using namespace std;
int main ()
{
int myints[]={ 12,82,37,64,15 };
set<int> first (myints,myints+5); // set with 5 ints
set<int> second; // empty set
second=first; // now second contains the 5 ints
first=set<int>(); // and first is empty
cout << "Size of first: " << int (first.size()) << endl;
cout << "Size of second: " << int (second.size()) << endl;
return 0;
}
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Output:
Size of first: 0
Size of second: 5
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Complexity
Linear on sizes (destruction, copy construction).
See also
| set::set | Construct set (public member function) |
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