Get length of an Array using a pointer

Question

Is there a way to get the length of an Array when I only know a pointer pointing to the Array?

See the following example

int testInt[3];
testInt[0] =         


        

Answer 1

The easy answer is no, you cannot. You'll probably want to keep a variable in memory which stores the amount of items in the array.

And there's a not-so-easy answer. There's a way to determine the length of an array, but for that you would have to mark the end of the array with another element, such as -1. Then just loop through it and find this element. The position of this element is the length. However, this won't work with your current code.

Pick one of the above.