performance - C: Comparison to NULL

Question

Religious arguments aside:

• Option1:

  if (pointer[i] == NULL) ...
  

• Option2:

  if (!pointer[i]) ...  
  

In C is option1 functionally equivalent to option2?

Does the later resolve quicker due to absence of a comparison ?

Answer 1

I prefer the explicit style (first version). It makes it obvious that there is a pointer involved and not an integer or something else but it's just a matter of style.

From a performance point of view, it should make no difference.