#include <iostream>
using namespace std ;

void function1( int arr[] )
{
 cout << "Size of arr:" << sizeof( arr ) << endl ;
}

int main()
{

int arr1[5]  ;
arr1[0] = 10  ;
arr1[1] = 20  ;

//Seems to work here
cout << "Size of arr:" << sizeof( arr1 ) << endl ;

function1( arr1 ) ;

}