This doesn't look like a function. What is this?

Question

A friend asked me to write a function in C to return the 100th element of an array. I\'m not very familiar with C, so I wasn\'t sure how to make a generic function that coul

Answer 1

You are right about the fact that GetHundredthElement is not a function-- it is, as you would expect, an integer.

However, this illustrates a surprising ability in C where you can reverse the order of your array access!

assert(a[5] == 5[a]);

This is because an array access can be implemented in pointer arithmetic:

assert(a[5] == *(a+5));
assert(*(a+5) == *(5+a));
assert(*(5+a) == 5[a]);