What is the advantage of using memset() in C

Question

I was curious as to whether or not there was any advantage in regards to efficiency to utilizing memset() in a situation similar to the one below.

Given the followin

Answer 1

memset gives a standard way to write code, letting the particular platform/compiler libraries determine the most efficient mechanism. Based on data sizes it may for example do 32-bit or 64-bit stores as much as possible.