Question

I have to rewrite code that references a 2-dimensional array using pointers instead of array operators.
How would I rewrite this:

...
else 
    array[i][j] = 'x';
...

So, I’m going to be setting the array to ‘x’ at that index. How would I do this with a pointer?

Answer 1

Assuming array is char array[x][y] then

 *(*(array + i) + j) = 'x';

I mean, it’s ugly and I probably wouldn’t do that, but it will work.

*(array + i)

returns another char[] at index i. So, you then offset again into that using j. You can (should) break that up into a few lines so that it is easy to scan.