Getting an array length in C# is a trivial task. All we need to so is call the Length property of the Array Class:

int[] arr = new int[17];
int arrLength = arr.Length;

Getting an array length in C++ might be less trivial:

int arr[17];
int arrSize = sizeof(arr) / sizeof(int);

Notice that sizeof(arr) returns the array size in bytes, not its length…