(* (Void (*) ()) 0) ()------What is this?

The first step: void (*) (), you can see that this is a function pointer type. This function has no parameters and no return value.

Step Two: (Void (*) ()) 0, which is to cast 0 to the function pointer type, 0 is an address, that is, a

function has an area with a first address of 0.

Step Three: (* (Void (*) ()) 0), which is the contents of a section of memory that takes 0 addresses, the contents of which are saved

A function within a section of the first address of 0.

Fourth Step: (* (Void (*) ()) 0) (), this is a function call.

(* (Void (*) ()) 0) ()------What is this?