>discrete_interval</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">inter_val</span><span class="special">;</span>

    <span class="identifier">inter_val</span> <span class="special">=</span> <span class="identifier">discrete_interval</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;::</span><span class="identifier">right_open</span><span class="special">(</span><span class="numb