title: How do I build a full adder with a half adder?
body: <p>This is my Half Adder:</p>
  
  <pre><code>void HalfAdder(int a, int b, int * addrCarry, int * addrSum){
      *addrCarry = a &amp;&amp; b;
      *addrSum = a != b;
  }
  </code></pre>
  
  <p>How do I take that and make it a Full Adder?</p>