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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>CCOrd (containers.CCOrd)</title><link rel="stylesheet" href="../../odoc.css"/><meta charset="utf-8"/><meta name="generator" content="odoc %%VERSION%%"/><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> » CCOrd</nav><h1>Module <code>CCOrd</code></h1><h2 id="comparisons"><a href="#comparisons" class="anchor"></a>Comparisons</h2><nav class="toc"><ul><li><a href="#lexicographic-combination">Lexicographic Combination</a></li></ul></nav></header><dl><dt class="spec type" id="type-t"><a href="#type-t" class="anchor"></a><code><span class="keyword">type</span> <span>'a t</span></code><code> = <span class="type-var">'a</span> <span>-></span> <span class="type-var">'a</span> <span>-></span> int</code></dt><dd><p>Comparison (total ordering) between two elements, that returns an int.</p></dd></dl><dl><dt class="spec value" id="val-compare"><a href="#val-compare" class="anchor"></a><code><span class="keyword">val</span> compare : <span><span class="type-var">'a</span> <a href="index.html#type-t">t</a></span></code></dt><dd><p>Polymorphic "magic" comparison.</p></dd></dl><dl><dt class="spec value" id="val-opp"><a href="#val-opp" class="anchor"></a><code><span class="keyword">val</span> opp : <span><span class="type-var">'a</span> <a href="index.html#type-t">t</a></span> <span>-></span> <span><span class="type-var">'a</span> <a href="index.html#type-t">t</a></span></code></dt><dd><p>Opposite order.</p></dd></dl><dl><dt class="spec value" id="val-equiv"><a href="#val-equiv" class="anchor"></a><code><span class="keyword">val</span> equiv : int <span>-></span> int <span>-></span> bool</code></dt><dd><p>Returns <code>true</code> iff the two comparison results are the same.</p></dd></dl><dl><dt class="spec value" id="val-int"><a href="#val-int" class="anchor"></a><code><span class="keyword">val</span> int : <span>int <a href="index.html#type-t">t</a></span></code></dt><dt class="spec value" id="val-string"><a href="#val-string" class="anchor"></a><code><span class="keyword">val</span> string : <span>string <a href="index.html#type-t">t</a></span></code></dt><dt class="spec value" id="val-bool"><a href="#val-bool" class="anchor"></a><code><span class="keyword">val</span> bool : <span>bool <a href="index.html#type-t">t</a></span></code></dt><dt class="spec value" id="val-float"><a href="#val-float" class="anchor"></a><code><span class="keyword">val</span> float : <span>float <a href="index.html#type-t">t</a></span></code></dt></dl><section><header><h3 id="lexicographic-combination"><a href="#lexicographic-combination" class="anchor"></a>Lexicographic Combination</h3></header><dl><dt class="spec value" id="val-(<?>)"><a href="#val-(<?>)" class="anchor"></a><code><span class="keyword">val</span> (<?>) : int <span>-></span> <span>(<span><span class="type-var">'a</span> <a href="index.html#type-t">t</a></span> * <span class="type-var">'a</span> * <span class="type-var">'a</span>)</span> <span>-></span> int</code></dt><dd><p><code>c1 <?> (ord, x, y)</code> returns the same as <code>c1</code> if <code>c1</code> is not <code>0</code>; otherwise it uses <code>ord</code> to compare the two values <code>x</code> and <code>y</code>, of type <code>'a</code>.</p><p>Example:</p><pre><code class="ml">CCInt.compare 1 3
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<?> (String.compare, "a", "b")
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<?> (CCBool.compare, true, false)</code></pre><p>Same example, using only CCOrd::</p><pre><code class="ml">CCOrd.(int 1 3
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<?> (string, "a", "b")
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<?> (bool, true, false))</code></pre></dd></dl><dl><dt class="spec value" id="val-option"><a href="#val-option" class="anchor"></a><code><span class="keyword">val</span> option : <span><span class="type-var">'a</span> <a href="index.html#type-t">t</a></span> <span>-></span> <span><span><span class="type-var">'a</span> option</span> <a href="index.html#type-t">t</a></span></code></dt><dd><p>Comparison of optional values. <code>None</code> is smaller than any <code>Some _</code>.</p><dl><dt>since</dt><dd>0.15</dd></dl></dd></dl><dl><dt class="spec value" id="val-pair"><a href="#val-pair" class="anchor"></a><code><span class="keyword">val</span> pair : <span><span class="type-var">'a</span> <a href="index.html#type-t">t</a></span> <span>-></span> <span><span class="type-var">'b</span> <a href="index.html#type-t">t</a></span> <span>-></span> <span><span>(<span class="type-var">'a</span> * <span class="type-var">'b</span>)</span> <a href="index.html#type-t">t</a></span></code></dt><dt class="spec value" id="val-triple"><a href="#val-triple" class="anchor"></a><code><span class="keyword">val</span> triple : <span><span class="type-var">'a</span> <a href="index.html#type-t">t</a></span> <span>-></span> <span><span class="type-var">'b</span> <a href="index.html#type-t">t</a></span> <span>-></span> <span><span class="type-var">'c</span> <a href="index.html#type-t">t</a></span> <span>-></span> <span><span>(<span class="type-var">'a</span> * <span class="type-var">'b</span> * <span class="type-var">'c</span>)</span> <a href="index.html#type-t">t</a></span></code></dt><dt class="spec value" id="val-list"><a href="#val-list" class="anchor"></a><code><span class="keyword">val</span> list : <span><span class="type-var">'a</span> <a href="index.html#type-t">t</a></span> <span>-></span> <span><span><span class="type-var">'a</span> list</span> <a href="index.html#type-t">t</a></span></code></dt><dd><p>Lexicographic combination on lists.</p></dd></dl><dl><dt class="spec value" id="val-array"><a href="#val-array" class="anchor"></a><code><span class="keyword">val</span> array : <span><span class="type-var">'a</span> <a href="index.html#type-t">t</a></span> <span>-></span> <span><span><span class="type-var">'a</span> array</span> <a href="index.html#type-t">t</a></span></code></dt><dt class="spec value" id="val-map"><a href="#val-map" class="anchor"></a><code><span class="keyword">val</span> map : <span>(<span class="type-var">'a</span> <span>-></span> <span class="type-var">'b</span>)</span> <span>-></span> <span><span class="type-var">'b</span> <a href="index.html#type-t">t</a></span> <span>-></span> <span><span class="type-var">'a</span> <a href="index.html#type-t">t</a></span></code></dt><dd><p><code>map f ord</code> is the comparison 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>ord</code>. Example: <code>map fst CCInt.compare</code> compares values of type <code>(int * 'a)</code> by their first component.</p></dd></dl><dl><dt class="spec value" id="val-(>|=)"><a href="#val-(>|=)" class="anchor"></a><code><span class="keyword">val</span> (>|=) : <span><span class="type-var">'b</span> <a href="index.html#type-t">t</a></span> <span>-></span> <span>(<span class="type-var">'a</span> <span>-></span> <span class="type-var">'b</span>)</span> <span>-></span> <span><span class="type-var">'a</span> <a href="index.html#type-t">t</a></span></code></dt><dd><p>Infix equivalent of <a href="index.html#val-map"><code>map</code></a>.</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></section></div></body></html> |