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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="API documentation for the Rust `ChaCha20Rng` struct in crate `rand_chacha`."><meta name="keywords" content="rust, rustlang, rust-lang, ChaCha20Rng"><title>rand_chacha::ChaCha20Rng - Rust</title><link rel="stylesheet" type="text/css" href="../normalize.css"><link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../dark.css"><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><script src="../storage.js"></script><noscript><link rel="stylesheet" href="../noscript.css"></noscript><link rel="shortcut icon" href="https://www.rust-lang.org/favicon.ico"><style type="text/css">#crate-search{background-image:url("../down-arrow.svg");}</style></head><body class="rustdoc struct"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../rand_chacha/index.html'><div class='logo-container'><img src='https://www.rust-lang.org/logos/rust-logo-128x128-blk.png' alt='logo'></div></a><p class='location'>Struct ChaCha20Rng</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.get_word_pos">get_word_pos</a><a href="#method.set_stream">set_stream</a><a href="#method.set_word_pos">set_word_pos</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Clone">Clone</a><a href="#impl-CryptoRng">CryptoRng</a><a href="#impl-Debug">Debug</a><a href="#impl-From%3CChaCha20Core%3E">From<ChaCha20Core></a><a href="#impl-RngCore">RngCore</a><a href="#impl-SeedableRng">SeedableRng</a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-Send">Send</a><a href="#impl-Sync">Sync</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow%3CT%3E">Borrow<T></a><a href="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><a href="#impl-From%3CT%3E">From<T></a><a href="#impl-Into%3CU%3E">Into<U></a><a href="#impl-ToOwned">ToOwned</a><a href="#impl-TryFrom%3CU%3E">TryFrom<U></a><a href="#impl-TryInto%3CU%3E">TryInto<U></a><a href="#impl-VZip%3CV%3E">VZip<V></a></div></div><p class='location'><a href='index.html'>rand_chacha</a></p><script>window.sidebarCurrent = {name: 'ChaCha20Rng', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../settings.html"><img src="../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../src/rand_chacha/chacha.rs.html#137-139' title='goto source code'>[src]</a></span><span class='in-band'>Struct <a href='index.html'>rand_chacha</a>::<wbr><a class="struct" href=''>ChaCha20Rng</a></span></h1><div class="docblock type-decl hidden-
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<p>ChaCha is a stream cipher designed by Daniel J. Bernstein<sup id="fnref1"><a href="#fn1">1</a></sup>, that we use as an RNG. It is
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an improved variant of the Salsa20 cipher family, which was selected as one of the "stream
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ciphers suitable for widespread adoption" by eSTREAM<sup id="fnref2"><a href="#fn2">2</a></sup>.</p>
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<p>ChaCha uses add-rotate-xor (ARX) operations as its basis. These are safe against timing
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attacks, although that is mostly a concern for ciphers and not for RNGs. We provide a SIMD
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implementation to support high throughput on a variety of common hardware platforms.</p>
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<p>With the ChaCha algorithm it is possible to choose the number of rounds the core algorithm
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should run. The number of rounds is a tradeoff between performance and security, where 8
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rounds is the minimum potentially secure configuration, and 20 rounds is widely used as a
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conservative choice.</p>
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<p>We use a 64-bit counter and 64-bit stream identifier as in Bernstein's implementation<sup id="fnref1"><a href="#fn1">1</a></sup>
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except that we use a stream identifier in place of a nonce. A 64-bit counter over 64-byte
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(16 word) blocks allows 1 ZiB of output before cycling, and the stream identifier allows
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2<sup>64</sup> unique streams of output per seed. Both counter and stream are initialized
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to zero but may be set via the <code>set_word_pos</code> and <code>set_stream</code> methods.</p>
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<p>The word layout is:</p>
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<pre><code class="language-text">constant constant constant constant
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seed seed seed seed
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seed seed seed seed
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counter counter stream_id stream_id
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</code></pre>
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<p>This implementation uses an output buffer of sixteen <code>u32</code> words, and uses
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[<code>BlockRng</code>] to implement the [<code>RngCore</code>] methods.</p>
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<div class="footnotes"><hr><ol><li id="fn1"><p>D. J. Bernstein, <a href="https://cr.yp.to/chacha.html"><em>ChaCha, a variant of Salsa20</em></a> <a href="#fnref1" rev="footnote">↩</a></p></li><li id="fn2"><p><a href="http://www.ecrypt.eu.org/stream/">eSTREAM: the ECRYPT Stream Cipher Project</a> <a href="#fnref2" rev="footnote">↩</a></p></li></ol></div></div><h2 id='methods' class='small-section-header'>Methods<a href='#methods' class='anchor'></a></h2><h3 id='impl' class='impl'><code class='in-band'>impl <a class="struct" href="../rand_chacha/struct.ChaCha20Rng.html" title="struct rand_chacha::ChaCha20Rng">ChaCha20Rng</a></code><a href='#impl' class='anchor'></a><a class='srclink' href='../src/rand_chacha/chacha.rs.html#171-226' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.get_word_pos' class="method"><code id='get_word_pos.v'>pub fn <a href='#method.get_word_pos' class='fnname'>get_word_pos</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u128.html">u128</a></code><a class='srclink' href='../src/rand_chacha/chacha.rs.html#182-187' title='goto source code'>[src]</a></h4><div class='docblock'><p>Get the offset from the start of the stream, in 32-bit words.</p>
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<p>Since the generated blocks are 16 words (2<sup>4</sup>) long and the
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counter is 64-bits, the offset is a 68-bit number. Sub-word offsets are
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not supported, hence the result can simply be multiplied by 4 to get a
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byte-offset.</p>
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</div><h4 id='method.set_word_pos' class="method"><code id='set_word_pos.v'>pub fn <a href='#method.set_word_pos' class='fnname'>set_word_pos</a>(&mut self, word_offset: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u128.html">u128</a>)</code><a class='srclink' href='../src/rand_chacha/chacha.rs.html#195-202' title='goto source code'>[src]</a></h4><div class='docblock'><p>Set the offset from the start of the stream, in 32-bit words.</p>
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<p>As with <code>get_word_pos</code>, we use a 68-bit number. Since the generator
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simply cycles at the end of its period (1 ZiB), we ignore the upper
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60 bits.</p>
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</div><h4 id='method.set_stream' class="method"><code id='set_stream.v'>pub fn <a href='#method.set_stream' class='fnname'>set_stream</a>(&mut self, stream: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>)</code><a class='srclink' href='../src/rand_chacha/chacha.rs.html#216-225' title='goto source code'>[src]</a></h4><div class='docblock'><p>Set the stream number.</p>
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<p>This is initialized to zero; 2<sup>64</sup> unique streams of output
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are available per seed/key.</p>
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<p>Note that in order to reproduce ChaCha output with a specific 64-bit
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nonce, one can convert that nonce to a <code>u64</code> in little-endian fashion
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and pass to this function. In theory a 96-bit nonce can be used by
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passing the last 64-bits to this function and using the first 32-bits as
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the most significant half of the 64-bit counter (which may be set
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indirectly via <code>set_word_pos</code>), but this is not directly supported.</p>
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</div></div><h2 id='implementations' class='small-section-header'>Trait Implementations<a href='#implementations' class='anchor'></a></h2><div id='implementations-list'><h3 id='impl-From%3CChaCha20Core%3E' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><<a class="struct" href="../rand_chacha/struct.ChaCha20Core.html" title="struct rand_chacha::ChaCha20Core">ChaCha20Core</a>> for <a class="struct" href="../rand_chacha/struct.ChaCha20Rng.html" title="struct rand_chacha::ChaCha20Rng">ChaCha20Rng</a></code><a href='#impl-From%3CChaCha20Core%3E' class='anchor'></a><a class='srclink' href='../src/rand_chacha/chacha.rs.html#230-236' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.from' class="method hidden"><code id='from.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from' class='fnname'>from</a>(core: <a class="struct" href="../rand_chacha/struct.ChaCha20Core.html" title="struct rand_chacha::ChaCha20Core">ChaCha20Core</a>) -> Self</code><a class='srclink' href='../src/rand_chacha/chacha.rs.html#231-235' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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</div></div><h3 id='impl-Clone' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="../rand_chacha/struct.ChaCha20Rng.html" title="struct rand_chacha::ChaCha20Rng">ChaCha20Rng</a></code><a href='#impl-Clone' class='anchor'></a><a class='srclink' href='../src/rand_chacha/chacha.rs.html#136' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.clone' class="method hidden"><code id='clone.v'>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone' class='fnname'>clone</a>(&self) -> <a class="struct" href="../rand_chacha/struct.ChaCha20Rng.html" title="struct rand_chacha::ChaCha20Rng">ChaCha20Rng</a></code><a class='srclink' href='../src/rand_chacha/chacha.rs.html#136' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
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</div><h4 id='method.clone_from' class="method"><code id='clone_from.v'>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from' class='fnname'>clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code><span class='since' title='Stable since Rust version 1.0.0'>1.0.0</span><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/clone.rs.html#131-133' title='goto source code'>[src]</a></h4><div class='docblock'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
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</div></div><h3 id='impl-Debug' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../rand_chacha/struct.ChaCha20Rng.html" title="struct rand_chacha::ChaCha20Rng">ChaCha20Rng</a></code><a href='#impl-Debug' class='anchor'></a><a class='srclink' href='../src/rand_chacha/chacha.rs.html#136' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.fmt' class="method hidden"><code id='fmt.v'>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code><a class='srclink' href='../src/rand_chacha/chacha.rs.html#136' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
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</div></div><h3 id='impl-RngCore' class='impl'><code class='in-band'>impl <a class="trait" href="../rand_core/trait.RngCore.html" title="trait rand_core::RngCore">RngCore</a> for <a class="struct" href="../rand_chacha/struct.ChaCha20Rng.html" title="struct rand_chacha::ChaCha20Rng">ChaCha20Rng</a></code><a href='#impl-RngCore' class='anchor'></a><a class='srclink' href='../src/rand_chacha/chacha.rs.html#152-169' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.next_u32' class="method hidden"><code id='next_u32.v'>fn <a href='../rand_core/trait.RngCore.html#tymethod.next_u32' class='fnname'>next_u32</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code><a class='srclink' href='../src/rand_chacha/chacha.rs.html#154-156' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Return the next random <code>u32</code>. <a href="../rand_core/trait.RngCore.html#tymethod.next_u32">Read more</a></p>
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</div><h4 id='method.next_u64' class="method hidden"><code id='next_u64.v'>fn <a href='../rand_core/trait.RngCore.html#tymethod.next_u64' class='fnname'>next_u64</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a></code><a class='srclink' href='../src/rand_chacha/chacha.rs.html#158-160' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Return the next random <code>u64</code>. <a href="../rand_core/trait.RngCore.html#tymethod.next_u64">Read more</a></p>
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</div><h4 id='method.fill_bytes' class="method hidden"><code id='fill_bytes.v'>fn <a href='../rand_core/trait.RngCore.html#tymethod.fill_bytes' class='fnname'>fill_bytes</a>(&mut self, bytes: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&mut [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>)</code><a class='srclink' href='../src/rand_chacha/chacha.rs.html#162-164' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Fill <code>dest</code> with random data. <a href="../rand_core/trait.RngCore.html#tymethod.fill_bytes">Read more</a></p>
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</div><h4 id='method.try_fill_bytes' class="method hidden"><code id='try_fill_bytes.v'>fn <a href='../rand_core/trait.RngCore.html#tymethod.try_fill_bytes' class='fnname'>try_fill_bytes</a>(&mut self, bytes: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&mut [</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <a class="struct" href="../rand_core/error/struct.Error.html" title="struct rand_core::error::Error">Error</a>></code><a class='srclink' href='../src/rand_chacha/chacha.rs.html#166-168' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Fill <code>dest</code> entirely with random data. <a href="../rand_core/trait.RngCore.html#tymethod.try_fill_bytes">Read more</a></p>
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</div></div><h3 id='impl-CryptoRng' class='impl'><code class='in-band'>impl <a class="trait" href="../rand_core/trait.CryptoRng.html" title="trait rand_core::CryptoRng">CryptoRng</a> for <a class="struct" href="../rand_chacha/struct.ChaCha20Rng.html" title="struct rand_chacha::ChaCha20Rng">ChaCha20Rng</a></code><a href='#impl-CryptoRng' class='anchor'></a><a class='srclink' href='../src/rand_chacha/chacha.rs.html#228' title='goto source code'>[src]</a></h3><div class='impl-items'></div><h3 id='impl-SeedableRng' class='impl'><code class='in-band'>impl <a class="trait" href="../rand_core/trait.SeedableRng.html" title="trait rand_core::SeedableRng">SeedableRng</a> for <a class="struct" href="../rand_chacha/struct.ChaCha20Rng.html" title="struct rand_chacha::ChaCha20Rng">ChaCha20Rng</a></code><a href='#impl-SeedableRng' class='anchor'></a><a class='srclink' href='../src/rand_chacha/chacha.rs.html#141-150' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Seed' class="type"><code id='Seed.t'>type <a href='../rand_core/trait.SeedableRng.html#associatedtype.Seed' class="type">Seed</a> = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.array.html">[</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.array.html">; 32]</a></code></h4><div class='docblock'><p>Seed type, which is restricted to types mutably-dereferencable as <code>u8</code> arrays (we recommend <code>[u8; N]</code> for some <code>N</code>). <a href="../rand_core/trait.SeedableRng.html#associatedtype.Seed">Read more</a></p>
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</div><h4 id='method.from_seed' class="method hidden"><code id='from_seed.v'>fn <a href='../rand_core/trait.SeedableRng.html#tymethod.from_seed' class='fnname'>from_seed</a>(seed: Self::<a class="type" href="../rand_core/trait.SeedableRng.html#associatedtype.Seed" title="type rand_core::SeedableRng::Seed">Seed</a>) -> Self</code><a class='srclink' href='../src/rand_chacha/chacha.rs.html#144-149' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Create a new PRNG using the given seed. <a href="../rand_core/trait.SeedableRng.html#tymethod.from_seed">Read more</a></p>
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</div><h4 id='method.seed_from_u64' class="method"><code id='seed_from_u64.v'>fn <a href='../rand_core/trait.SeedableRng.html#method.seed_from_u64' class='fnname'>seed_from_u64</a>(state: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>) -> Self</code><a class='srclink' href='../src/rand_core/lib.rs.html#306-329' title='goto source code'>[src]</a></h4><div class='docblock'><p>Create a new PRNG using a <code>u64</code> seed. <a href="../rand_core/trait.SeedableRng.html#method.seed_from_u64">Read more</a></p>
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</div><h4 id='method.from_rng' class="method"><code id='from_rng.v'>fn <a href='../rand_core/trait.SeedableRng.html#method.from_rng' class='fnname'>from_rng</a><R>(rng: R) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><Self, <a class="struct" href="../rand_core/error/struct.Error.html" title="struct rand_core::error::Error">Error</a>> <span class="where fmt-newline">where<br> R: <a class="trait" href="../rand_core/trait.RngCore.html" title="trait rand_core::RngCore">RngCore</a>, </span></code><a class='srclink' href='../src/rand_core/lib.rs.html#356-360' title='goto source code'>[src]</a></h4><div class='docblock'><p>Create a new PRNG seeded from another <code>Rng</code>. <a href="../rand_core/trait.SeedableRng.html#method.from_rng">Read more</a></p>
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</div><h4 id='method.from_entropy' class="method"><code id='from_entropy.v'>fn <a href='../rand_core/trait.SeedableRng.html#method.from_entropy' class='fnname'>from_entropy</a>() -> Self</code><a class='srclink' href='../src/rand_core/lib.rs.html#377-383' title='goto source code'>[src]</a></h4><div class='docblock'><p>Creates a new instance of the RNG seeded via [<code>getrandom</code>]. <a href="../rand_core/trait.SeedableRng.html#method.from_entropy">Read more</a></p>
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</div></div></div><h2 id='synthetic-implementations' class='small-section-header'>Auto Trait Implementations<a href='#synthetic-implementations' class='anchor'></a></h2><div id='synthetic-implementations-list'><h3 id='impl-Send' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="../rand_chacha/struct.ChaCha20Rng.html" title="struct rand_chacha::ChaCha20Rng">ChaCha20Rng</a></code><a href='#impl-Send' class='anchor'></a></h3><div class='impl-items'></div><h3 id='impl-Sync' class='impl'><code class='in-band'>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="../rand_chacha/struct.ChaCha20Rng.html" title="struct rand_chacha::ChaCha20Rng">ChaCha20Rng</a></code><a href='#impl-Sync' class='anchor'></a></h3><div class='impl-items'></div></div><h2 id='blanket-implementations' class='small-section-header'>Blanket Implementations<a href='#blanket-implementations' class='anchor'></a></h2><div id='blanket-implementations-list'><h3 id='impl-From%3CT%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</code><a href='#impl-From%3CT%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#546-548' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.from-1' class="method hidden"><code id='from.v-1'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from' class='fnname'>from</a>(t: T) -> T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#547' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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</div></div><h3 id='impl-ToOwned' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html" title="trait alloc::borrow::ToOwned">ToOwned</a> for T <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, </span></code><a href='#impl-ToOwned' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#81-92' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Owned' class="type"><code id='Owned.t'>type <a href='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#associatedtype.Owned' class="type">Owned</a> = T</code></h4><div class='docblock'><p>The resulting type after obtaining ownership.</p>
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</div><h4 id='method.to_owned' class="method hidden"><code id='to_owned.v'>fn <a href='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned' class='fnname'>to_owned</a>(&self) -> T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#85-87' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates owned data from borrowed data, usually by cloning. <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></p>
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</div><h4 id='method.clone_into' class="method hidden"><code id='clone_into.v'>fn <a href='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into' class='fnname'>clone_into</a>(&self, target: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T)</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#89-91' title='goto source code'>[src]</a></h4><div class='stability hidden'><div class='stab unstable'><details><summary><span class='emoji'>🔬</span> This is a nightly-only experimental API. (<code>toowned_clone_into</code>)</summary><p>recently added</p>
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</details></div></div><div class='docblock hidden'><p>Uses borrowed data to replace owned data, usually by cloning. <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></p>
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</div></div><h3 id='impl-Into%3CU%3E' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></code><a href='#impl-Into%3CU%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#537-542' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.into' class="method hidden"><code id='into.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into' class='fnname'>into</a>(self) -> U</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#539-541' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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</div></div><h3 id='impl-TryFrom%3CU%3E' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></code><a href='#impl-TryFrom%3CU%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#565-571' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Error' class="type"><code id='Error.t'>type <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error' class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
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</div><h4 id='method.try_from' class="method hidden"><code id='try_from.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from' class='fnname'>try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#568-570' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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</div></div><h3 id='impl-TryInto%3CU%3E' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><a href='#impl-TryInto%3CU%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#553-560' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Error-1' class="type"><code id='Error.t-1'>type <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error' class="type">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
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</div><h4 id='method.try_into' class="method hidden"><code id='try_into.v'>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into' class='fnname'>try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#557-559' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
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</div></div><h3 id='impl-BorrowMut%3CT%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href='#impl-BorrowMut%3CT%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#218-220' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.borrow_mut' class="method hidden"><code id='borrow_mut.v'>fn <a href='https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut' class='fnname'>borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#219' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
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</div></div><h3 id='impl-Borrow%3CT%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href='#impl-Borrow%3CT%3E' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#213-215' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.borrow' class="method hidden"><code id='borrow.v'>fn <a href='https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow' class='fnname'>borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#214' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
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</div></div><h3 id='impl-Any' class='impl'><code class='in-band'>impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T <span class="where fmt-newline">where<br> T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href='#impl-Any' class='anchor'></a><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#100-102' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.type_id' class="method hidden"><code id='type_id.v'>fn <a href='https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id' class='fnname'>type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#101' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></p>
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</div></div><h3 id='impl-VZip%3CV%3E' class='impl'><code class='in-band'>impl<V, T> <a class="trait" href="../ppv_lite86/types/types/trait.VZip.html" title="trait ppv_lite86::types::types::VZip">VZip</a><V> for T <span class="where fmt-newline">where<br> V: <a class="trait" href="../ppv_lite86/types/types/trait.MultiLane.html" title="trait ppv_lite86::types::types::MultiLane">MultiLane</a><T>, </span></code><a href='#impl-VZip%3CV%3E' class='anchor'></a><a class='srclink' href='../src/ppv_lite86/types.rs.html#212-220' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.vzip' class="method hidden"><code id='vzip.v'>fn <a href='../ppv_lite86/types/types/trait.VZip.html#tymethod.vzip' class='fnname'>vzip</a>(self) -> V</code><a class='srclink' href='../src/ppv_lite86/types.rs.html#217-219' title='goto source code'>[src]</a></h4></div></div></section><section id="search" class="content hidden"></section><section class="footer"></section><aside id="help" class="hidden"><div><h1 class="hidden">Help</h1><div class="shortcuts"><h2>Keyboard Shortcuts</h2><dl><dt><kbd>?</kbd></dt><dd>Show this help dialog</dd><dt><kbd>S</kbd></dt><dd>Focus the search field</dd><dt><kbd>↑</kbd></dt><dd>Move up in search results</dd><dt><kbd>↓</kbd></dt><dd>Move down in search results</dd><dt><kbd>↹</kbd></dt><dd>Switch tab</dd><dt><kbd>⏎</kbd></dt><dd>Go to active search result</dd><dt><kbd>+</kbd></dt><dd>Expand all sections</dd><dt><kbd>-</kbd></dt><dd>Collapse all sections</dd></dl></div><div class="infos"><h2>Search Tricks</h2><p>Prefix searches with a type followed by a colon (e.g., <code>fn:</code>) to restrict the search to a given type.</p><p>Accepted types are: <code>fn</code>, <code>mod</code>, <code>struct</code>, <code>enum</code>, <code>trait</code>, <code>type</code>, <code>macro</code>, and <code>const</code>.</p><p>Search functions by type signature (e.g., <code>vec -> usize</code> or <code>* -> vec</code>)</p><p>Search multiple things at once by splitting your query with comma (e.g., <code>str,u8</code> or <code>String,struct:Vec,test</code>)</p></div></div></aside><script>window.rootPath = "../";window.currentCrate = "rand_chacha";</script><script src="../aliases.js"></script><script src="../main.js"></script><script defer src="../search-index.js"></script></body></html>
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