Question

I have a 20 by 10 array consisting of doubles and short strings (fewer than 15 chars each). This array is used only inside a function when it is called. The strings are constant only the doubles vary.

Should I leave this array local to the function? Any consideration that I am not aware of?

I am in the process of planning this function and array. The array might have additional types, most likely some enum types, so I don’t have any concrete code to show yet. All I know is the approximate size and dimension of the array.

Answer 1

You simply cannot have a local instance of an array.

Arrays are reference types so the actual memory is always allocated on the heap.

So: Yes, do keep your (reference-to-an) array variable local if that fits its usage. And it does:

This array is used only inside a function