10 lines
6.2 KiB
HTML
10 lines
6.2 KiB
HTML
<!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="A speedy, non-cryptographic hashing algorithm used by `rustc`."><title>rustc_hash - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../static.files/rustdoc-42caa33d.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="rustc_hash" data-themes="" data-resource-suffix="" data-rustdoc-version="1.84.0 (9fc6b4312 2025-01-07)" data-channel="1.84.0" data-search-js="search-92e6798f.js" data-settings-js="settings-0f613d39.js" ><script src="../static.files/storage-59e33391.js"></script><script defer src="../crates.js"></script><script defer src="../static.files/main-5f194d8c.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-893ab5e7.css"></noscript><link rel="alternate icon" type="image/png" href="../static.files/favicon-32x32-6580c154.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-044be391.svg"></head><body class="rustdoc mod crate"><!--[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="../rustc_hash/index.html">rustc_<wbr>hash</a><span class="version">2.1.0</span></h2></div><div class="sidebar-elems"><ul class="block"><li><a id="all-types" href="all.html">All Items</a></li></ul><section id="rustdoc-toc"><h3><a href="#">Sections</a></h3><ul class="block top-toc"><li><a href="#example" title="Example">Example</a></li></ul><h3><a href="#structs">Crate Items</a></h3><ul class="block"><li><a href="#structs" title="Structs">Structs</a></li><li><a href="#types" title="Type Aliases">Type Aliases</a></li></ul></section><div id="rustdoc-modnav"></div></div></nav><div class="sidebar-resizer"></div><main><div class="width-limiter"><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><h1>Crate <span>rustc_hash</span><button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../src/rustc_hash/lib.rs.html#1-459">Source</a> </span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A speedy, non-cryptographic hashing algorithm used by <code>rustc</code>.</p>
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<h2 id="example"><a class="doc-anchor" href="#example">§</a>Example</h2>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>rustc_hash::FxHashMap;
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<span class="kw">let </span><span class="kw-2">mut </span>map: FxHashMap<u32, u32> = FxHashMap::default();
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map.insert(<span class="number">22</span>, <span class="number">44</span>);</code></pre></div>
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</div></details><h2 id="structs" class="section-header">Structs<a href="#structs" class="anchor">§</a></h2><ul class="item-table"><li><div class="item-name"><a class="struct" href="struct.FxBuildHasher.html" title="struct rustc_hash::FxBuildHasher">FxBuild<wbr>Hasher</a></div><div class="desc docblock-short">An implementation of <a href="https://doc.rust-lang.org/1.84.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher"><code>BuildHasher</code></a> that produces <a href="struct.FxHasher.html" title="struct rustc_hash::FxHasher"><code>FxHasher</code></a>s.</div></li><li><div class="item-name"><a class="struct" href="struct.FxHasher.html" title="struct rustc_hash::FxHasher">FxHasher</a></div><div class="desc docblock-short">A speedy hash algorithm for use within rustc. The hashmap in liballoc
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by default uses SipHash which isn’t quite as speedy as we want. In the
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compiler we’re not really worried about DOS attempts, so we use a fast
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non-cryptographic hash.</div></li><li><div class="item-name"><a class="struct" href="struct.FxSeededState.html" title="struct rustc_hash::FxSeededState">FxSeeded<wbr>State</a></div><div class="desc docblock-short"><a href="struct.FxSeededState.html" title="struct rustc_hash::FxSeededState"><code>FxSeededState</code></a> is an alternative state for <code>HashMap</code> types, allowing to use <a href="struct.FxHasher.html" title="struct rustc_hash::FxHasher"><code>FxHasher</code></a> with a set seed.</div></li></ul><h2 id="types" class="section-header">Type Aliases<a href="#types" class="anchor">§</a></h2><ul class="item-table"><li><div class="item-name"><a class="type" href="type.FxHashMap.html" title="type rustc_hash::FxHashMap">FxHash<wbr>Map</a></div><div class="desc docblock-short">Type alias for a hash map that uses the Fx hashing algorithm.</div></li><li><div class="item-name"><a class="type" href="type.FxHashMapSeed.html" title="type rustc_hash::FxHashMapSeed">FxHash<wbr>MapSeed</a></div><div class="desc docblock-short">Type alias for a hashmap using the <code>fx</code> hash algorithm with <a href="struct.FxSeededState.html" title="struct rustc_hash::FxSeededState"><code>FxSeededState</code></a>.</div></li><li><div class="item-name"><a class="type" href="type.FxHashSet.html" title="type rustc_hash::FxHashSet">FxHash<wbr>Set</a></div><div class="desc docblock-short">Type alias for a hash set that uses the Fx hashing algorithm.</div></li><li><div class="item-name"><a class="type" href="type.FxHashSetSeed.html" title="type rustc_hash::FxHashSetSeed">FxHash<wbr>SetSeed</a></div><div class="desc docblock-short">Type alias for a hashmap using the <code>fx</code> hash algorithm with <a href="struct.FxSeededState.html" title="struct rustc_hash::FxSeededState"><code>FxSeededState</code></a>.</div></li></ul></section></div></main></body></html> |