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<!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 trait for RNGs which do not generate random numbers individually, but in blocks (typically `[u32; N]`). This technique is commonly used by cryptographic RNGs to improve performance."><title>BlockRngCore in rand_core::block - 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="rand_core" data-themes="" data-resource-suffix="" data-rustdoc-version="1.84.1 (e71f9a9a9 2025-01-27)" data-channel="1.84.1" data-search-js="search-92e6798f.js" data-settings-js="settings-0f613d39.js" ><script src="../../static.files/storage-59e33391.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-5f194d8c.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-893ab5e7.css"></noscript><link rel="icon" href="https://www.rust-lang.org/favicon.ico"></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><a class="logo-container" href="../../rand_core/index.html"><img src="https://www.rust-lang.org/logos/rust-logo-128x128-blk.png" alt=""></a></nav><nav class="sidebar"><div class="sidebar-crate"><a class="logo-container" href="../../rand_core/index.html"><img src="https://www.rust-lang.org/logos/rust-logo-128x128-blk.png" alt="logo"></a><h2><a href="../../rand_core/index.html">rand_<wbr>core</a><span class="version">0.6.4</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Block<wbr>RngCore</a></h2><h3><a href="#required-associated-types">Required Associated Types</a></h3><ul class="block"><li><a href="#associatedtype.Item" title="Item">Item</a></li><li><a href="#associatedtype.Results" title="Results">Results</a></li></ul><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.generate" title="generate">generate</a></li></ul><h3><a href="#implementors">Implementors</a></h3></section><div id="rustdoc-modnav"><h2><a href="index.html">In rand_<wbr>core::<wbr>block</a></h2></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"><span class="rustdoc-breadcrumbs"><a href="../index.html">rand_core</a>::<wbr><a href="index.html">block</a></span><h1>Trait <span class="trait">BlockRngCore</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/rand_core/block.rs.html#68-78">Source</a> </span></div><pre class="rust item-decl"><code>pub trait BlockRngCore {
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type <a href="#associatedtype.Item" class="associatedtype">Item</a>;
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type <a href="#associatedtype.Results" class="associatedtype">Results</a>: <a class="trait" href="https://doc.rust-lang.org/1.84.1/core/convert/trait.AsRef.html" title="trait core::convert::AsRef">AsRef</a><[Self::<a class="associatedtype" href="trait.BlockRngCore.html#associatedtype.Item" title="type rand_core::block::BlockRngCore::Item">Item</a>]> + <a class="trait" href="https://doc.rust-lang.org/1.84.1/core/convert/trait.AsMut.html" title="trait core::convert::AsMut">AsMut</a><[Self::<a class="associatedtype" href="trait.BlockRngCore.html#associatedtype.Item" title="type rand_core::block::BlockRngCore::Item">Item</a>]> + <a class="trait" href="https://doc.rust-lang.org/1.84.1/core/default/trait.Default.html" title="trait core::default::Default">Default</a>;
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// Required method
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fn <a href="#tymethod.generate" class="fn">generate</a>(&mut self, results: &mut Self::<a class="associatedtype" href="trait.BlockRngCore.html#associatedtype.Results" title="type rand_core::block::BlockRngCore::Results">Results</a>);
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}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A trait for RNGs which do not generate random numbers individually, but in
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blocks (typically <code>[u32; N]</code>). This technique is commonly used by
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cryptographic RNGs to improve performance.</p>
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<p>See the <a href="index.html" title="mod rand_core::block">module</a> documentation for details.</p>
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</div></details><h2 id="required-associated-types" class="section-header">Required Associated Types<a href="#required-associated-types" class="anchor">§</a></h2><div class="methods"><details class="toggle" open><summary><section id="associatedtype.Item" class="method"><a class="src rightside" href="../../src/rand_core/block.rs.html#70">Source</a><h4 class="code-header">type <a href="#associatedtype.Item" class="associatedtype">Item</a></h4></section></summary><div class="docblock"><p>Results element type, e.g. <code>u32</code>.</p>
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</div></details><details class="toggle" open><summary><section id="associatedtype.Results" class="method"><a class="src rightside" href="../../src/rand_core/block.rs.html#74">Source</a><h4 class="code-header">type <a href="#associatedtype.Results" class="associatedtype">Results</a>: <a class="trait" href="https://doc.rust-lang.org/1.84.1/core/convert/trait.AsRef.html" title="trait core::convert::AsRef">AsRef</a><[Self::<a class="associatedtype" href="trait.BlockRngCore.html#associatedtype.Item" title="type rand_core::block::BlockRngCore::Item">Item</a>]> + <a class="trait" href="https://doc.rust-lang.org/1.84.1/core/convert/trait.AsMut.html" title="trait core::convert::AsMut">AsMut</a><[Self::<a class="associatedtype" href="trait.BlockRngCore.html#associatedtype.Item" title="type rand_core::block::BlockRngCore::Item">Item</a>]> + <a class="trait" href="https://doc.rust-lang.org/1.84.1/core/default/trait.Default.html" title="trait core::default::Default">Default</a></h4></section></summary><div class="docblock"><p>Results type. This is the ‘block’ an RNG implementing <code>BlockRngCore</code>
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generates, which will usually be an array like <code>[u32; 16]</code>.</p>
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</div></details></div><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.generate" class="method"><a class="src rightside" href="../../src/rand_core/block.rs.html#77">Source</a><h4 class="code-header">fn <a href="#tymethod.generate" class="fn">generate</a>(&mut self, results: &mut Self::<a class="associatedtype" href="trait.BlockRngCore.html#associatedtype.Results" title="type rand_core::block::BlockRngCore::Results">Results</a>)</h4></section></summary><div class="docblock"><p>Generate a new block of results.</p>
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</div></details></div><h2 id="implementors" class="section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"></div><script src="../../trait.impl/rand_core/block/trait.BlockRngCore.js" async></script></section></div></main></body></html> |