word">if</span> (p = x + radius + <span class="number">1</span>) &lt; widthMinus1 <span class="keyword">then</span> p <span class="keyword">else</span> widthMinus1)) &lt;&lt; <span class="number">2</span>

        r_in_sum += (stackIn.r = pixels[p])
        g_in_sum += (stackIn.g = pixels[p + <span class="number">1</span>])
        b_in_sum += (stackIn.b = pixels[p + <span class="number">2</span>])

        r_sum += r_in_sum
        g_sum += g_in_sum
        b_sum += b_in_sum

        stackIn = stackIn.next