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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>CCRef (containers.CCRef)</title><link rel="stylesheet" href="../../_odoc-theme/odoc.css"/><meta charset="utf-8"/><meta name="generator" content="odoc 2.3.1"/><meta name="viewport" content="width=device-width,initial-scale=1.0"/><script src="../../highlight.pack.js"></script><script>hljs.initHighlightingOnLoad();</script></head><body class="odoc"><nav class="odoc-nav"><a href="../index.html">Up</a> – <a href="../index.html">containers</a> &#x00BB; CCRef</nav><header class="odoc-preamble"><h1>Module <code><span>CCRef</span></code></h1><p>Helpers for references</p><ul class="at-tags"><li class="since"><span class="at-tag">since</span> 0.9</li></ul></header><div class="odoc-content"><div class="odoc-spec"><div class="spec type anchored" id="type-printer"><a href="#type-printer" class="anchor"></a><code><span><span class="keyword">type</span> <span>'a printer</span></span><span> = <span><a href="../../ocaml/Stdlib/Format/index.html#type-formatter">Stdlib.Format.formatter</a> <span class="arrow">&#45;&gt;</span></span> <span><span class="type-var">'a</span> <span class="arrow">&#45;&gt;</span></span> unit</span></code></div></div><div class="odoc-spec"><div class="spec type anchored" id="type-ord"><a href="#type-ord" class="anchor"></a><code><span><span class="keyword">type</span> <span>'a ord</span></span><span> = <span><span class="type-var">'a</span> <span class="arrow">&#45;&gt;</span></span> <span><span class="type-var">'a</span> <span class="arrow">&#45;&gt;</span></span> int</span></code></div></div><div class="odoc-spec"><div class="spec type anchored" id="type-eq"><a href="#type-eq" class="anchor"></a><code><span><span class="keyword">type</span> <span>'a eq</span></span><span> = <span><span class="type-var">'a</span> <span class="arrow">&#45;&gt;</span></span> <span><span class="type-var">'a</span> <span class="arrow">&#45;&gt;</span></span> bool</span></code></div></div><div class="odoc-spec"><div class="spec type anchored" id="type-iter"><a href="#type-iter" class="anchor"></a><code><span><span class="keyword">type</span> <span>'a iter</span></span><span> = <span><span>(<span><span class="type-var">'a</span> <span class="arrow">&#45;&gt;</span></span> unit)</span> <span class="arrow">&#45;&gt;</span></span> unit</span></code></div></div><div class="odoc-spec"><div class="spec type anchored" id="type-t"><a href="#type-t" class="anchor"></a><code><span><span class="keyword">type</span> <span>'a t</span></span><span> = <span><span class="type-var">'a</span> <a href="../../ocaml/Stdlib/index.html#type-ref">ref</a></span></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-map"><a href="#val-map" class="anchor"></a><code><span><span class="keyword">val</span> map : <span><span>(<span><span class="type-var">'a</span> <span class="arrow">&#45;&gt;</span></span> <span class="type-var">'b</span>)</span> <span class="arrow">&#45;&gt;</span></span> <span><span><span class="type-var">'a</span> <a href="#type-t">t</a></span> <span class="arrow">&#45;&gt;</span></span> <span><span class="type-var">'b</span> <a href="#type-t">t</a></span></span></code></div><div class="spec-doc"><p>Transform the value.</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-create"><a href="#val-create" class="anchor"></a><code><span><span class="keyword">val</span> create : <span><span class="type-var">'a</span> <span class="arrow">&#45;&gt;</span></span> <span><span class="type-var">'a</span> <a href="#type-t">t</a></span></span></code></div><div class="spec-doc"><p>Alias to <code>ref</code>.</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-iter"><a href="#val-iter" class="anchor"></a><code><span><span class="keyword">val</span> iter : <span><span>(<span><span class="type-var">'a</span> <span class="arrow">&#45;&gt;</span></span> unit)</span> <span class="arrow">&#45;&gt;</span></span> <span><span><span class="type-var">'a</span> <a href="#type-t">t</a></span> <span class="arrow">&#45;&gt;</span></span> unit</span></code></div><div class="spec-doc"><p>Call the function on the content of the reference.</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-update"><a href="#val-update" class="anchor"></a><code><span><span class="keyword">val</span> update : <span><span>(<span><span class="type-var">'a</span> <span class="arrow">&#45;&gt;</span></span> <span class="type-var">'a</span>)</span> <span class="arrow">&#45;&gt;</span></span> <span><span><span class="type-var">'a</span> <a href="#type-t">t</a></span> <span class="arrow">&#45;&gt;</span></span> unit</span></code></div><div class="spec-doc"><p>Update the reference's content with the given function.</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-incr_then_get"><a href="#val-incr_then_get" class="anchor"></a><code><span><span class="keyword">val</span> incr_then_get : <span><span>int <a href="#type-t">t</a></span> <span class="arrow">&#45;&gt;</span></span> int</span></code></div><div class="spec-doc"><p><code>incr_then_get r</code> increments <code>r</code> and returns its new value, think <code>++r</code>.</p><ul class="at-tags"><li class="since"><span class="at-tag">since</span> 0.17</li></ul></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-get_then_incr"><a href="#val-get_then_incr" class="anchor"></a><code><span><span class="keyword">val</span> get_then_incr : <span><span>int <a href="#type-t">t</a></span> <span class="arrow">&#45;&gt;</span></span> int</span></code></div><div class="spec-doc"><p><code>get_then_incr r</code> increments <code>r</code> and returns its old value, think <code>r++</code>.</p><ul class="at-tags"><li class="since"><span class="at-tag">since</span> 0.17</li></ul></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-swap"><a href="#val-swap" class="anchor"></a><code><span><span class="keyword">val</span> swap : <span><span><span class="type-var">'a</span> <a href="#type-t">t</a></span> <span class="arrow">&#45;&gt;</span></span> <span><span><span class="type-var">'a</span> <a href="#type-t">t</a></span> <span class="arrow">&#45;&gt;</span></span> unit</span></code></div><div class="spec-doc"><p><code>swap t1 t2</code> puts <code>!t2</code> in <code>t1</code> and <code>!t1</code> in <code>t2</code>.</p><ul class="at-tags"><li class="since"><span class="at-tag">since</span> 1.4</li></ul></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-protect"><a href="#val-protect" class="anchor"></a><code><span><span class="keyword">val</span> protect : <span><span><span class="type-var">'a</span> <a href="#type-t">t</a></span> <span class="arrow">&#45;&gt;</span></span> <span><span class="type-var">'a</span> <span class="arrow">&#45;&gt;</span></span> <span><span>(<span>unit <span class="arrow">&#45;&gt;</span></span> <span class="type-var">'b</span>)</span> <span class="arrow">&#45;&gt;</span></span> <span class="type-var">'b</span></span></code></div><div class="spec-doc"><p><code>protect r x f</code> sets <code>r := x</code>; calls <code>f()</code>; restores <code>r</code> to its old value; and returns the result of <code>f()</code>.</p><ul class="at-tags"><li class="since"><span class="at-tag">since</span> 3.10</li></ul></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-compare"><a href="#val-compare" class="anchor"></a><code><span><span class="keyword">val</span> compare : <span><span><span class="type-var">'a</span> <a href="#type-ord">ord</a></span> <span class="arrow">&#45;&gt;</span></span> <span><span><span class="type-var">'a</span> <a href="#type-t">t</a></span> <a href="#type-ord">ord</a></span></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-equal"><a href="#val-equal" class="anchor"></a><code><span><span class="keyword">val</span> equal : <span><span><span class="type-var">'a</span> <a href="#type-eq">eq</a></span> <span class="arrow">&#45;&gt;</span></span> <span><span><span class="type-var">'a</span> <a href="#type-t">t</a></span> <a href="#type-eq">eq</a></span></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-to_list"><a href="#val-to_list" class="anchor"></a><code><span><span class="keyword">val</span> to_list : <span><span><span class="type-var">'a</span> <a href="#type-t">t</a></span> <span class="arrow">&#45;&gt;</span></span> <span><span class="type-var">'a</span> list</span></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-to_iter"><a href="#val-to_iter" class="anchor"></a><code><span><span class="keyword">val</span> to_iter : <span><span><span class="type-var">'a</span> <a href="#type-t">t</a></span> <span class="arrow">&#45;&gt;</span></span> <span><span class="type-var">'a</span> <a href="#type-iter">iter</a></span></span></code></div><div class="spec-doc"><ul class="at-tags"><li class="since"><span class="at-tag">since</span> 3.0</li></ul></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-pp"><a href="#val-pp" class="anchor"></a><code><span><span class="keyword">val</span> pp : <span><span><span class="type-var">'a</span> <a href="#type-printer">printer</a></span> <span class="arrow">&#45;&gt;</span></span> <span><span><span class="type-var">'a</span> <a href="#type-t">t</a></span> <a href="#type-printer">printer</a></span></span></code></div></div></div></body></html>
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