Question

What do the declaration int(*pf)() signify?

Answer 1

This means that variables declared with the pf type are pointers to a function which takes two int parameters and returns an int .

Answer 2

pf is a pointer to a function which return int

Explanation:

The following is the details of it.

• int - the type of this variable is of type int which is typically 2–4 bytes depending on the system.
• (*pf) - along with the type declaration of int, this is a declaration of an abstract pointer to type int.
• () - building upon the declaration of the int (*pf) abstract pointer, we have another parenthesis which then finalizes the declaration as a pointer to a function of an unknown amount of parameters and returns an int.

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