pan> <span class="identifier">checked_deleter</span>
<span class="special">{</span>
    <span class="keyword">typedef</span> <span class="keyword">void</span> <span class="identifier">result_type</span><span class="special">;</span>
    <span class="keyword">typedef</span> <span class="identifier">T</span> <span class="special">*</span> <span class="identifier">argument_type</span><span class="special">;</span>
    <span class="keyword">void</span> <span class="keyword">operator</span><span class="special">