Can someone explain how to append an element to an array in C programming?

Question

If I want to append a number to an array initialized to int, how can I do that?

int arr[10] = {0, 5, 3, 64};
arr[] += 5; //Is this it?, it\'s not working for me.         


        

Answer 1

Short answer is: You don't have any choice other than:

arr[4] = 5;