Solving the puzzle of the address-of operator. #clang
Other subtleties of the C language: There are two ways to index an array a, either a[i] or i[a], as illustrated below:
#include <stdio.h>
int main(void) {
int arr[5] = {1, 2, 3, 4, 5};
int i = 2;
printf("i[arr]: %d\n", i[arr]);
printf("arr[i]: %d\n", arr[i]);
}