derefferencing a function pointer with and without parentheses

Question

What is the difference in dereferencing a function pointer with and without parentheses. both the mechanism are working same on linux Gnu Gcc.

void (*fp)(void); //function pointer

void func(void);

fp = func; 

(*fp)();  //dereferencing with parentheses

fp(); // without parentheses

Doppelgänger : http://stackoverflow.com/questions/6893285/why-do-all-these-crazy-function-pointer-definitions-all-work-what-is-really-goi — Quentin, Jan 14 '15 at 10:18

score 1 · Answer 1 · edited May 23 '17 at 11:50

1

You need to know that

(*fp)() = fp()

The function pointer can be called in both the ways and both are valid and same.

Check the below link:

edited May 23 '17 at 11:50

Community

answered Jan 14 '15 at 10:15

Gopi

1 Answers1