How to pass an array by reference in C++

If we pass the address of an array while calling a function, then this is called function call by reference. The function declaration should have a pointer as a parameter to receive the passed address, when we pass an address as an argument.

Example Code

#include <iostream>
using namespace std;
void show( int *num) {
   cout<<*num;
}
int main() {
   int a[] = {3,2,1,6,7,4,5,0,10,8};
   for (int i=0; i<10; i++) {
      show (&a[i]);
   }
   return 0;
}

Output

32167450108