nce                  memunit_distance</span>
<a name="l00071"></a>00071 <span class="preprocessor"></span>
<a name="l00072"></a>00072 <span class="preprocessor">#define byte_addressable_step_iterator memory_based_step_iterator</span>
<a name="l00073"></a>00073 <span class="preprocessor"></span><span class="preprocessor">#define byte_addressable_2d_locator    memory_based_2d_locator</span>
<a name="l00074"></a>00074 <span class="preprocessor"></span>
<a name="l00075"></a>00075 <span class="comment">// These 