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<link title="Weak" rel="Chapter" href="Weak.html"><title>Hashtbl.HashedType</title>
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<center><h1>Module type <a href="type_Hashtbl.HashedType.html">Hashtbl.HashedType</a></h1></center>
<br>
<pre><span class="keyword">module type</span> HashedType = <code class="type">sig end</code></pre><div class="info">
The input signature of the functor <a href="Hashtbl.Make.html"><code class="code"><span class="constructor">Hashtbl</span>.<span class="constructor">Make</span></code></a>.<br>
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<br><code><span class="keyword">type</span> <a name="TYPEt"></a>t </code>
<div class="info">
The type of the hashtable keys.<br>
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<pre><span class="keyword">val</span> <a name="VALequal"></a>equal : <code class="type"><a href="Hashtbl.HashedType.html#TYPEt">t</a> -> <a href="Hashtbl.HashedType.html#TYPEt">t</a> -> bool</code></pre><div class="info">
The equality predicate used to compare keys.<br>
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<pre><span class="keyword">val</span> <a name="VALhash"></a>hash : <code class="type"><a href="Hashtbl.HashedType.html#TYPEt">t</a> -> int</code></pre><div class="info">
A hashing function on keys. It must be such that if two keys are
equal according to <code class="code">equal</code>, then they have identical hash values
as computed by <code class="code">hash</code>.
Examples: suitable (<code class="code">equal</code>, <code class="code">hash</code>) pairs for arbitrary key
types include
(<code class="code">(=)</code>, <a href="Hashtbl.html#VALhash"><code class="code"><span class="constructor">Hashtbl</span>.hash</code></a>) for comparing objects by structure, and
(<code class="code">(==)</code>, <a href="Hashtbl.html#VALhash"><code class="code"><span class="constructor">Hashtbl</span>.hash</code></a>) for comparing objects by addresses
(e.g. for mutable or cyclic keys).<br>
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