C++ Function Definition Passing a two-dimensional array

#include <iostream>
#include <iomanip>
using namespace std;
const int ROWS = 3;
const int COLS = 4;
void display(int [ROWS][COLS]);  // function prototype
int main()/*  w w  w .  j ava 2s.c  o m*/
{
   int val[ROWS][COLS] = {8,16,9,52, 3,15,27,6, 1,2,2,10};
   display(val);
   return 0;
}
void display(int nums[ROWS][COLS])
{
   int rownum, colnum;
   for (rownum = 0; rownum < ROWS; rownum++)
   {
      for (colnum = 0; colnum < COLS; colnum++) {
         cout << setw(4) << nums[rownum][colnum];
      }
      cout << endl;
   }
   return;
}