> <span class="identifier">a</span> <span class="special">+</span> <span class="identifier">b</span><span class="special">;</span>
    <span class="special">}</span>

    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
    <span class="identifier">T</span>
    <span class="identifier">plus</span><span class="special">(</span><span class="identifier">T</span> <span class="identifier