Question

How would you address one dimensional memory using two dimensions? (Such as getting the value Matrix::ValueAt(row, col) where Matrix stores the values as a one dimensional array (float m[16] for a 4×4 matrix).

class Matrix4x4
{
    private float m[16];

    float getValueAt(int row, int col)
    {
        // I want this function
    }

}

Answer 1

With m[row * 4 + col], or the other way around.