edlang/hashbrown/trait.Equivalent.html
2024-05-05 09:43:20 +00:00

20 lines
7.6 KiB
HTML
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Key equivalence trait."><title>Equivalent in hashbrown - Rust</title><script> if (window.location.protocol !== "file:") document.write(`<link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2">`)</script><link rel="stylesheet" href="../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../static.files/rustdoc-e935ef01ae1c1829.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="hashbrown" data-themes="" data-resource-suffix="" data-rustdoc-version="1.78.0 (9b00956e5 2024-04-29)" data-channel="1.78.0" data-search-js="search-42d8da7a6b9792c2.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../static.files/storage-4c98445ec4002617.js"></script><script defer src="sidebar-items.js"></script><script defer src="../static.files/main-12cf3b4f4f9dc36d.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-04d5337699b92874.css"></noscript><link rel="alternate icon" type="image/png" href="../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc trait"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle" title="show sidebar"></button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../hashbrown/index.html">hashbrown</a><span class="version">0.14.5</span></h2></div><h2 class="location"><a href="#">Equivalent</a></h2><div class="sidebar-elems"><section><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.equivalent">equivalent</a></li></ul><h3><a href="#implementors">Implementors</a></h3></section><h2><a href="index.html">In crate hashbrown</a></h2></div></nav><div class="sidebar-resizer"></div>
<main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><div id="sidebar-button" tabindex="-1"><a href="../hashbrown/all.html" title="show sidebar"></a></div><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Click or press S to search, ? for more options…" type="search"><div id="help-button" tabindex="-1"><a href="../help.html" title="help">?</a></div><div id="settings-menu" tabindex="-1"><a href="../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Trait <a href="index.html">hashbrown</a>::<wbr><a class="trait" href="#">Equivalent</a><button id="copy-path" title="Copy item path to clipboard"><img src="../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../src/hashbrown/lib.rs.html#153-163">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>&#x2212;</span>]</button></span></div><pre class="rust item-decl"><code>pub trait Equivalent&lt;K: ?<a class="trait" href="https://doc.rust-lang.org/1.78.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>&gt; {
// Required method
fn <a href="#tymethod.equivalent" class="fn">equivalent</a>(&amp;self, key: <a class="primitive" href="https://doc.rust-lang.org/1.78.0/core/primitive.reference.html">&amp;K</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.78.0/core/primitive.bool.html">bool</a>;
}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Key equivalence trait.</p>
<p>This trait defines the function used to compare the input value with the
map keys (or set values) during a lookup operation such as <a href="hash_map/struct.HashMap.html#method.get" title="method hashbrown::hash_map::HashMap::get"><code>HashMap::get</code></a>
or <a href="hash_set/struct.HashSet.html#method.contains" title="method hashbrown::hash_set::HashSet::contains"><code>HashSet::contains</code></a>.
It is provided with a blanket implementation based on the
<a href="https://doc.rust-lang.org/1.78.0/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow"><code>Borrow</code></a> trait.</p>
<h2 id="correctness"><a class="doc-anchor" href="#correctness">§</a>Correctness</h2>
<p>Equivalent values must hash to the same value.</p>
</div></details><h2 id="required-methods" class="section-header">Required Methods<a href="#required-methods" class="anchor">§</a></h2><div class="methods"><details class="toggle method-toggle" open><summary><section id="tymethod.equivalent" class="method"><a class="src rightside" href="../src/hashbrown/lib.rs.html#162">source</a><h4 class="code-header">fn <a href="#tymethod.equivalent" class="fn">equivalent</a>(&amp;self, key: <a class="primitive" href="https://doc.rust-lang.org/1.78.0/core/primitive.reference.html">&amp;K</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.78.0/core/primitive.bool.html">bool</a></h4></section></summary><div class="docblock"><p>Checks if this value is equivalent to the given key.</p>
<p>Returns <code>true</code> if both values are equivalent, and <code>false</code> otherwise.</p>
<h5 id="correctness-1"><a class="doc-anchor" href="#correctness-1">§</a>Correctness</h5>
<p>When this function returns <code>true</code>, both <code>self</code> and <code>key</code> must hash to
the same value.</p>
</div></details></div><h2 id="implementors" class="section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"><section id="impl-Equivalent%3CK%3E-for-Q" class="impl"><a class="src rightside" href="../src/hashbrown/lib.rs.html#166-174">source</a><a href="#impl-Equivalent%3CK%3E-for-Q" class="anchor">§</a><h3 class="code-header">impl&lt;Q, K&gt; <a class="trait" href="trait.Equivalent.html" title="trait hashbrown::Equivalent">Equivalent</a>&lt;K&gt; for Q<div class="where">where
Q: <a class="trait" href="https://doc.rust-lang.org/1.78.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + ?<a class="trait" href="https://doc.rust-lang.org/1.78.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,
K: <a class="trait" href="https://doc.rust-lang.org/1.78.0/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;Q&gt; + ?<a class="trait" href="https://doc.rust-lang.org/1.78.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></div><script src="../trait.impl/hashbrown/trait.Equivalent.js" async></script></section></div></main></body></html>