ytes to append. If this number is greater than
                    the number of writable bytes, all writable bytes are appended.
                  </p>
                </td>
</tr></tbody>
</table></div>
<h6>
<a name="beast.ref.boost__beast__basic_flat_buffer.commit.h3"></a>
          <span class="phrase"><a name="beast.ref.boost__beast__basic_flat_buffer.commit.exception_safety"></a></span><a class="link" href="commit.html#beast.ref.boost__beast__basic_flat_buffer.commit.exception_safety">Exception
       