/span><span class="identifier">size_type</span> <span class="identifier">size_type</span><span class="special">;</span>

    <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span><span class="identifier">box</span><span class="special">,</span> <span class="identifier">size_type</span><span class="special">&gt;</span> <span class="identifier">value</span><span class="special">;</span>

    <