 59</span>&#160;                <span class="keyword">typedef</span> VALTYPE &amp; value_reference;</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;                <span class="keyword">typedef</span> VALTYPE * value_pointer;</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;                <span class="keyword">typedef</span> VALTYPE <span class="keyword">const</span> * value_const_pointer;</div>
<div class="line"><a name="l00062"></a><s