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Asked: 2026-06-01T08:10:13+00:00

I am building a C++ class A that needs to contain a bunch of

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I am building a C++ class A that needs to contain a bunch of pointers to other objects B.

In order to make the class as general as possible, I am using a std::vector<B*> inside this class. This way any number of different B can be held in A (there are no restrictions on how many there can be).

Now this might be a bit of overkill because most of the time, I will be using objects of type A that only hold either 2 or 4 B*‘s in the vector.

Since there is going to be a lot of iterative calculations going on, involving objects of class A, I was wondering if there is a lot of overhead involved in using a vector of B‘s when there are only two B‘s needed.

Should I overload the class to use another container when there are less than 3 B present?

to make things clearer: A are multipoles and B are magnetic coils, that constitute the multipoles

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1 Answer

  1. Editorial Team

    Premature optimization. Get it working first. If you profile your application and see that you need more efficiency (in memory or performance), then you can change it. Otherwise, it’s a potential waste of time.

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