Question

I have a type which I consider use it as struct.

• It represents single value
• It is immutable

But the problem is, it has 6 fields of int.

So which solution I should use for this type?

1. keep using struct?
2. change to class?
3. or pack 6 integers into an array of int, so it has only one field

EDIT

Size of struct with 6 integer fields is 24 bytes, which is huge to pass around. Recommend size for struct is not more than 16 bytes

Answer 1

It depends how you are going to use it?

1. Are you going to allocate a lot of it vs. pass it around a lot?
2. Is it going to be consumed by 3rd party code? In this case, classes typically give you more flexibility.
3. Do you want struct vs. class semantics? For example, non-nullable?
4. Would you benefit from having a couple of pre-created instances of this class that can be re-use to represent special cases? Similar to String.Empty. In this case you would benefit from a class.

It is hard to answer just from the information you provided in your question.