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  26 <a name="LessThanComparable"></a><div class="titlepage"></div>
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  28 <h2><span class="refentrytitle">Concept LessThanComparable</span></h2>
  29 <p>LessThanComparable</p>
  30 </div>
  31 <div class="refsect1">
  32 <a name="idp74887632"></a><h2>Description</h2>
  33 <p>LessThanComparable types must have <code class="computeroutput">&lt;</code>,
  34   <code class="computeroutput">&gt;</code>, <code class="computeroutput">&lt;=</code>, and <code class="computeroutput">&gt;=</code>
  35   operators.</p>
  36 </div>
  37 <div class="refsect1">
  38 <a name="idp74890768"></a><h2>Notation</h2>
  39 <div class="variablelist"><dl class="variablelist">
  40 <dt><span class="term">X</span></dt>
  41 <dd>A type playing the role of comparable-type in the <a class="link" href="LessThanComparable.html" title="Concept LessThanComparable">LessThanComparable</a> concept.</dd>
  42 <dt>
  43 <span class="term"><code class="varname">x</code>, </span><span class="term"><code class="varname">y</code></span>
  44 </dt>
  45 <dd>Objects of type X</dd>
  46 </dl></div>
  47 </div>
  48 <div class="refsect1">
  49 <a name="idp74893952"></a><h2>Valid expressions</h2>
  50 <div class="informaltable"><table class="table">
  51 <colgroup>
  52 <col>
  53 <col>
  54 <col>
  55 <col>
  56 </colgroup>
  57 <thead><tr>
  58 <th>Name</th>
  59 <th>Expression</th>
  60 <th>Type</th>
  61 <th>Semantics</th>
  62 </tr></thead>
  63 <tbody>
  64 <tr>
  65 <td><p>Less than</p></td>
  66 <td><p>x &lt; y</p></td>
  67 <td><p>Convertible to <span class="type">bool</span></p></td>
  68 <td><p>Determine if one value is less than another.</p></td>
  69 </tr>
  70 <tr>
  71 <td><p>Less than or equal</p></td>
  72 <td><p>x &lt;= y</p></td>
  73 <td><p>Convertible to <span class="type">bool</span></p></td>
  74 <td><p>Determine if one value is less than or equal to another.</p></td>
  75 </tr>
  76 <tr>
  77 <td><p>Greater than</p></td>
  78 <td><p>x &gt; y</p></td>
  79 <td><p>Convertible to <span class="type">bool</span></p></td>
  80 <td><p>Determine if one value is greater than another.</p></td>
  81 </tr>
  82 <tr>
  83 <td><p>Greater than or equal to</p></td>
  84 <td><p>x &gt;= y</p></td>
  85 <td><p>Convertible to <span class="type">bool</span></p></td>
  86 <td><p>Determine if one value is greater than or equal to another.</p></td>
  87 </tr>
  88 </tbody>
  89 </table></div>
  90 </div>
  91 <div class="refsect1">
  92 <a name="idp74904080"></a><h2>Models</h2>
  93 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"><span class="simplelist"><span class="type">int</span></span></li></ul></div>
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