CODE EXAMPLE FOR CPP

get array size

// C++ program to find size 
// of an array by using a 
// pointer hack
#include <bits/stdc++.h>
using namespace std;
  
int main()
{
    int arr[] = { 1, 2, 3, 4, 5, 6 };
    int size = *(&arr + 1) - arr;
    cout << "Number of elements in arr[] is " << size;
    return 0;
}