Thread: passing 2d arrays to functions

Is there a way to pass a 2d array to a function without the function knowing how many elements each row has?

If not, i'm interested about what does "inverting" a 2d array means?

Replacing first row with the last one, etc?

Anyway, this is the code.

Code:

#include <iostream>

using namespace std;

void invert(char array[][3])
{
      size_t rows = sizeof(array) / sizeof(array[0]);
      size_t columns = sizeof(array[0]);
      for(int i = 0, k = rows; i < rows; i++, k--)
         for(int j = 0; j < columns; j++) {
             char temp = array[i][j];
             array[i][j] = array[k][j];
             array[k][j] = temp;
         }
}

int main()
{
      char array[2][3] = { 'd', 'a', 'e', 'l', 'o', 'm' };
      cout << sizeof(array) << endl;
      cout << sizeof(array[0]) << endl;
      invert(array);
      for(int i = 0; i < 2; i++)
         for(int j = 0; j < 3; j++)
            cout << array[i][j];
      
      return 0;
}