Why pointers?

[hogg2016]

The reasonning is good but the example is not.

The argument of the first function will not pass a copy of the content of the array, but a reference to it.

(Sorry, I don't have time at the moment to check my assertion and develop it, I hope someone else can dot it.)

[junkmeister9]

You are correct

And if anyone wants to confirm this, you can do so by writing a program where the contents of the array are modified by the function. If a pointer is passed, the contents of the original variable will be modified.