Purpose of dereferencing a pointer as a parameter in C.
- by Leif Andersen
I recently came along this line of code:
CustomData_em_free_block(&em->vdata, &eve->data);
And I thought, isn't:
a->b
just syntactic sugar for:
(*a).b
With that in mind, this line could be re-written as:
CustomData_em_free_block(&(*em).vdata, &(*eve).data);
If that's the case, what is the point of passing in
&(*a), as a parameter, and not just a? It seems like the pointer equivalent of -(-a) is being passed in in, is there any logic for this?
Thank you.
