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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>CCEqual (containers.CCEqual)</title><link rel="stylesheet" href="../../odoc.css"/><meta charset="utf-8"/><meta name="viewport" content="width=device-width,initial-scale=1.0"/><script src="../../highlight.pack.js"></script><script>hljs.initHighlightingOnLoad();</script></head><body><div class="content"><header><nav><a href="../index.html">Up</a> – <a href="../index.html">containers</a> » CCEqual</nav><h1>Module <code>CCEqual</code></h1><h2 id="equality-combinators"><a href="#equality-combinators" class="anchor"></a>Equality Combinators</h2></header><aside><dl><dt>since</dt><dd>1.2</dd></dl></aside><dl><dt class="spec type" id="type-t"><a href="#type-t" class="anchor"></a><code><span class="keyword">type </span>'a t</code><code><span class="keyword"> = </span><span class="type-var">'a</span> <span>-></span> <span class="type-var">'a</span> <span>-></span> bool</code></dt><dd><p>Equality function. Must be transitive, symmetric, and reflexive.</p></dd></dl><dl><dt class="spec value" id="val-poly"><a href="#val-poly" class="anchor"></a><code><span class="keyword">val </span>poly : <span class="type-var">'a</span> <a href="index.html#type-t">t</a></code></dt><dd><p>Standard polymorphic equality.</p></dd></dl><dl><dt class="spec value" id="val-physical"><a href="#val-physical" class="anchor"></a><code><span class="keyword">val </span>physical : <span class="type-var">'a</span> <a href="index.html#type-t">t</a></code></dt><dd><p>Standard physical equality.</p><dl><dt>since</dt><dd>2.0</dd></dl></dd></dl><dl><dt class="spec value" id="val-int"><a href="#val-int" class="anchor"></a><code><span class="keyword">val </span>int : int <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-string"><a href="#val-string" class="anchor"></a><code><span class="keyword">val </span>string : string <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-bool"><a href="#val-bool" class="anchor"></a><code><span class="keyword">val </span>bool : bool <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-float"><a href="#val-float" class="anchor"></a><code><span class="keyword">val </span>float : float <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-unit"><a href="#val-unit" class="anchor"></a><code><span class="keyword">val </span>unit : unit <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-list"><a href="#val-list" class="anchor"></a><code><span class="keyword">val </span>list : <span class="type-var">'a</span> <a href="index.html#type-t">t</a> <span>-></span> <span class="type-var">'a</span> list <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-array"><a href="#val-array" class="anchor"></a><code><span class="keyword">val </span>array : <span class="type-var">'a</span> <a href="index.html#type-t">t</a> <span>-></span> <span class="type-var">'a</span> array <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-option"><a href="#val-option" class="anchor"></a><code><span class="keyword">val </span>option : <span class="type-var">'a</span> <a href="index.html#type-t">t</a> <span>-></span> <span class="type-var">'a</span> option <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-pair"><a href="#val-pair" class="anchor"></a><code><span class="keyword">val </span>pair : <span class="type-var">'a</span> <a href="index.html#type-t">t</a> <span>-></span> <span class="type-var">'b</span> <a href="index.html#type-t">t</a> <span>-></span> (<span class="type-var">'a</span><span class="keyword"> * </span><span class="type-var">'b</span>) <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-triple"><a href="#val-triple" class="anchor"></a><code><span class="keyword">val </span>triple : <span class="type-var">'a</span> <a href="index.html#type-t">t</a> <span>-></span> <span class="type-var">'b</span> <a href="index.html#type-t">t</a> <span>-></span> <span class="type-var">'c</span> <a href="index.html#type-t">t</a> <span>-></span> (<span class="type-var">'a</span><span class="keyword"> * </span><span class="type-var">'b</span><span class="keyword"> * </span><span class="type-var">'c</span>) <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-map"><a href="#val-map" class="anchor"></a><code><span class="keyword">val </span>map : (<span class="type-var">'a</span> <span>-></span> <span class="type-var">'b</span>) <span>-></span> <span class="type-var">'b</span> <a href="index.html#type-t">t</a> <span>-></span> <span class="type-var">'a</span> <a href="index.html#type-t">t</a></code></dt><dd><p><code>map f eq</code> is the equality function that, given objects <code>x</code> and <code>y</code>, projects <code>x</code> and <code>y</code> using <code>f</code> (e.g. using a record field) and then compares those projections with <code>eq</code>. Example: <code>map fst int</code> compares values of type <code>(int * 'a)</code> by their first component.</p></dd></dl><div class="spec module" id="module-Infix"><a href="#module-Infix" class="anchor"></a><code><span class="keyword">module </span><a href="Infix/index.html">Infix</a> : <span class="keyword">sig</span> ... <span class="keyword">end</span></code></div><div><div class="spec include"><div class="doc"><details open="open"><summary><span class="def"><code><span class="keyword">include </span><span class="keyword">module type of </span><a href="index.html#module-Infix">Infix</a></code></span></summary><dl><dt class="spec value" id="val-(>|=)"><a href="#val-(>|=)" class="anchor"></a><code><span class="keyword">val </span>(>|=) : <span class="type-var">'b</span> <a href="index.html#type-t">t</a> <span>-></span> (<span class="type-var">'a</span> <span>-></span> <span class="type-var">'b</span>) <span>-></span> <span class="type-var">'a</span> <a href="index.html#type-t">t</a></code></dt><dd><p>Infix equivalent of <a href="index.html#val-map"><code>map</code></a>.</p></dd></dl></details></div></div></div></div></body></html> |