Question

I saw this example when I was trying to figure out how to pass pointers to dynamically allocated 2d arrays to functions:

void zeroit(int **array, int nrows, int ncolumns)
 {
 int i, j;
 for(i = 0; i < nrows; i++)
  {
  for(j = 0; j < ncolumns; j++)
   array[i][j] = 0;
  }
 }

I tried it and it works, but I don’t understand how. How does the function “zeroit” calculates the correct address?

Answer 1

Here you are:

http://www.eskimo.com/~scs/cclass/int/sx9a.html
http://www.eskimo.com/~scs/cclass/int/sx9b.html