></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><h3>template&lt;typename K&gt;<br/>
class lemon::TrueMap&lt; K &gt;</h3>

<p>This <a class="el" href="a00319.html">read-only map</a> assigns <code>true</code> to each key.</p>
<p>Note that </p>
<div class="fragment"><div class="line">*    TrueMap&lt;K&gt; tm;</div>
<div class="line">*  </div>
</div><!-- fragment --><p> is equivalent to </p>
<div class="fragment"><div class="line">*    ConstMap&lt;K,bool&gt; tm(<span class="keyword