C triple dereferencing

Question

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Uses for multiple levels of pointer dereferences?

I have used functions with doubly dereferenced pointers (**var) to return values. However, I was recently asked a question to figure out a use-case where a triple dereferencing (***var) may be needed. I couldn't think of any practical scenario. Does anyone have any experience here?

Answer 1

If you have a tensor, then you would need triple dereferencing.

Answer 2

Three dimensional arrays.

Answer 3

A pointer to a handle.

Answer 4

if you want to have a two-dimensional pointer array used to referencing a general two-dimensional array, you would need triple dereferencing.

Answer 5

A two dimensional array containing pointers to functions.