multimap operator = in C++ STL
The multimap::operator= is a built in C++ STL which assigns new contents to the container, replacing its current content.
Syntax:
multimap1_name = multimap2_name
Parameters: The multimap on the left is the container in which the multimap on the right is to be assigned by destroying the elements of multimap1.
Return Value: This function does not return anything.
#include <bits/stdc++.h>
using namespace std;
int main()
{
multimap< int , int > mp, copymp;
mp.insert({ 2, 30 });
mp.insert({ 1, 40 });
mp.insert({ 2, 60 });
mp.insert({ 2, 20 });
mp.insert({ 1, 50 });
mp.insert({ 4, 50 });
copymp = mp;
cout << "\nThe multimap mp1 is : \n" ;
cout << "KEY\tELEMENT\n" ;
for ( auto itr = mp.begin(); itr != mp.end(); ++itr) {
cout << itr->first
<< '\t' << itr->second << '\n' ;
}
cout << "\nThe multimap copymap is : \n" ;
cout << "KEY\tELEMENT\n" ;
for ( auto itr = copymp.begin(); itr != copymp.end(); ++itr) {
cout << itr->first
<< '\t' << itr->second << '\n' ;
}
return 0;
}
|
Output:
The multimap mp1 is :
KEY ELEMENT
1 40
1 50
2 30
2 60
2 20
4 50
The multimap copymap is :
KEY ELEMENT
1 40
1 50
2 30
2 60
2 20
4 50
Last Updated :
18 Nov, 2020
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