"number">2</span><span class="special">;</span> <span class="keyword">char</span> <span class="identifier">b</span> <span class="special">=</span> <span class="char">'X'</span><span class="special">;</span>
    <span class="identifier">increment</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span><span class="identifier">b</span><span class="special">);</span>
    <span class="identifier">assert</span><span class="special">(</span><span class="identifier">a</sp