How do I declare a Multi-set that contains arrays of a certain size?

Question

I'm relatively new to C++. I'm trying to declare a multiset that contains arrays of size 2. I've tried the following but I don't think it does what I want it to do:

multiset<int> nameOfSet[2];

Can someone please tell me what this line does? If this is wrong, please explain to me why and tell me how to do it correctly. Thanks in advance.

The line is declareing a 2-element array of `multiset`. You may want `multiset > nameOfSet;`. — MikeCAT, Jul 21 '21 at 15:04

score 2 · Answer 1 · answered Jul 21 '21 at 15:08

multiset<int> nameOfSet[2];
Can someone please tell me what this line does?

It declares a variable that is an array of two multisets of int.

How do I declare a Multi-set that contains arrays of a certain size?

You cannot. Arrays cannot be elements of any standard container.

However, arrays can be members of classes, and classes can be elements of containers. There is a standard template for such array wrapper: std::array. So, you can do:

std::multiset<std::array<int, 2>> nameOfSet;

How do I declare a Multi-set that contains arrays of a certain size?

1 Answers1