c - Which code would you prefer and why? Program to swap values using pointers

Question

Closed. This question is opinion-based. It is not currently accepting answers. question from:https://stackoverflow.com/questions/65873136/which-code-would-you-prefer-and-why-program-to-swap-values-using-pointers

Answer 1

I would
prefer first case if I am swapping some heavy data, lets say some struct x, so we pass address of struct which is a fixed size depends on system.

prefer second case for normal data like int or char etc.. There is no need to allocate memory and free.