d::Box'>Box</a></td>
                        <td class='docblock short'>
                             <p>A pointer type for heap allocation.</p>

                        </td>
                    </tr>
                
                    <tr class='unstable module-item'>
                        <td><a class='struct' href='struct.ExchangeHeapSingleton.html'
                               title='alloc::boxed::ExchangeHeapSingleton'>ExchangeHeapSingleton</a></td>
                        <td class='docblock sh