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href="Unix.html"> <link title="UnixLabels" rel="Chapter" href="UnixLabels.html"> <link title="Weak" rel="Chapter" href="Weak.html"><title>Set.OrderedType</title> </head> <body> <div class="navbar"> <a href="Set.html">Up</a> <a href="Set.S.html">Next</a> </div> <center><h1>Module type <a href="type_Set.OrderedType.html">Set.OrderedType</a></h1></center> <br> <pre><span class="keyword">module type</span> OrderedType = <code class="code"><span class="keyword">sig</span></code> <a href="Set.OrderedType.html">..</a> <code class="code"><span class="keyword">end</span></code></pre>Input signature of the functor <a href="Set.Make.html"><code class="code"><span class="constructor">Set</span>.<span class="constructor">Make</span></code></a>.<br> <hr width="100%"> <pre><span id="TYPEt"><span class="keyword">type</span> <code class="type"></code>t</span> </pre> <div class="info"> The type of the set elements.<br> </div> <pre><span id="VALcompare"><span class="keyword">val</span> compare</span> : <code class="type"><a href="Set.OrderedType.html#TYPEt">t</a> -> <a href="Set.OrderedType.html#TYPEt">t</a> -> int</code></pre><div class="info"> A total ordering function over the set elements. This is a two-argument function <code class="code">f</code> such that <code class="code">f e1 e2</code> is zero if the elements <code class="code">e1</code> and <code class="code">e2</code> are equal, <code class="code">f e1 e2</code> is strictly negative if <code class="code">e1</code> is smaller than <code class="code">e2</code>, and <code class="code">f e1 e2</code> is strictly positive if <code class="code">e1</code> is greater than <code class="code">e2</code>. Example: a suitable ordering function is the generic structural comparison function <a href="Pervasives.html#VALcompare"><code class="code">compare</code></a>.<br> </div> </body></html>