<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="API documentation for the Rust `ChaCha8Rng` struct in crate `rand_chacha`."><metaname="keywords"content="rust, rustlang, rust-lang, ChaCha8Rng"><title>rand_chacha::ChaCha8Rng - Rust</title><linkrel="stylesheet"type="text/css"href="../normalize.css"><linkrel="stylesheet"type="text/css"href="../rustdoc.css"id="mainThemeStyle"><linkrel="stylesheet"type="text/css"href="../dark.css"><linkrel="stylesheet"type="text/css"href="../light.css"id="themeStyle"><scriptsrc="../storage.js"></script><noscript><linkrel="stylesheet"href="../noscript.css"></noscript><linkrel="shortcut icon"href="https://www.rust-lang.org/favicon.ico"><styletype="text/css">#crate-search{background-image:url("../down-arrow.svg");}</style></head><bodyclass="rustdoc struct"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="sidebar"><divclass="sidebar-menu">☰</div><ahref='../rand_chacha/index.html'><divclass='logo-container'><imgsrc='https://www.rust-lang.org/logos/rust-logo-128x128-blk.png'alt='logo'></div></a><pclass='location'>Struct ChaCha8Rng</p><divclass="sidebar-elems"><divclass="block items"><aclass="sidebar-title"href="#methods">Methods</a><divclass="sidebar-links"><ahref="#method.get_word_pos">get_word_pos</a><ahref="#method.set_stream">set_stream</a><ahref="#method.set_word_pos">set_word_pos</a></div><aclass="sidebar-title"href="#implementations">Trait Implementations</a><divclass="sidebar-links"><ahref="#impl-Clone">Clone</a><ahref="#impl-CryptoRng">CryptoRng</a><ahref="#impl-Debug">Debug</a><ahref="#impl-From%3CChaCha8Core%3E">From<ChaCha8Core></a><ahref="#impl-RngCore">RngCore</a><ahref="#impl-SeedableRng">SeedableRng</a></div><aclass="sidebar-title"href="#synthetic-implementations">Auto Trait Implementations</a><divclass="sidebar-links"><ahref="#impl-RefUnwindSafe">RefUnwindSafe</a><ahref="#impl-Send">Send</a><ahref="#impl-Sync">Sync</a><ahref="#impl-Unpin">Unpin</a><ahref="#impl-UnwindSafe">UnwindSafe</a></div><aclass="sidebar-title"href="#blanket-implementations">Blanket Implementations</a><divclass="sidebar-links"><ahref="#impl-Any">Any</a><ahref="#impl-Borrow%3CT%3E">Borrow<T></a><ahref="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><ahref="#impl-From%3CT%3E">From<T></a><ahref="#impl-Into%3CU%3E">Into<U></a><ahref="#impl-ToOwned">ToOwned</a><ahref="#impl-TryFrom%3CU%3E">TryFrom<U></a><ahref="#impl-TryInto%3CU%3E">TryInto<U></a><ahref="#impl-VZip%3CV%3E">VZip<V></a></div></div><pclass='location'><ahref='index.html'>rand_chacha</a></p><script>window.sidebarCurrent={name:'ChaCha8Rng',ty:'struct',relpath:''};</script><scriptdefersrc="sidebar-items.js"></script></div></nav><divclass="theme-picker"><buttonid="theme-picker"aria-label="Pick another theme!"><imgsrc="../brush.svg"width="18"alt="Pick another theme!"></button><divid="theme-choices"></div></div><scriptsrc="../theme.js"></script><navclass="sub"><formclass="search-form js-only"><divclass="search-container"><div><selectid="crate-search"><optionvalue="All crates">All crates</option></select><inputclass="search-input"name="search"autocomplete="off"spellcheck="false"placeholder="Click or press ‘S’ to search, ‘?’ for more options…"type="search"></div><aid="settings-menu"href="../settings.html"><imgsrc="../wheel.svg"width="18"alt="Change settings"></a></div></form></nav><sectionid="main"class="content"><h1class='fqn'><spanclass='out-of-band'><spanid='render-detail'><aid="toggle-all-docs"href="javascript:void(0)"title="collapse all docs">[<spanclass='inner'>−</span>]</a></span><aclass='srclink'href='../src/rand_chacha/chacha.rs.html#137-139'title='goto source code'>[src]</a></span><spanclass='in-band'>Struct <ahref='index.html'>r
<p>ChaCha is a stream cipher designed by Daniel J. Bernstein<supid="fnref1"><ahref="#fn1">1</a></sup>, that we use as an RNG. It is
an improved variant of the Salsa20 cipher family, which was selected as one of the "stream
ciphers suitable for widespread adoption" by eSTREAM<supid="fnref2"><ahref="#fn2">2</a></sup>.</p>
<p>ChaCha uses add-rotate-xor (ARX) operations as its basis. These are safe against timing
attacks, although that is mostly a concern for ciphers and not for RNGs. We provide a SIMD
implementation to support high throughput on a variety of common hardware platforms.</p>
<p>With the ChaCha algorithm it is possible to choose the number of rounds the core algorithm
should run. The number of rounds is a tradeoff between performance and security, where 8
rounds is the minimum potentially secure configuration, and 20 rounds is widely used as a
conservative choice.</p>
<p>We use a 64-bit counter and 64-bit stream identifier as in Bernstein's implementation<supid="fnref1"><ahref="#fn1">1</a></sup>
except that we use a stream identifier in place of a nonce. A 64-bit counter over 64-byte
(16 word) blocks allows 1 ZiB of output before cycling, and the stream identifier allows
2<sup>64</sup> unique streams of output per seed. Both counter and stream are initialized
to zero but may be set via the <code>set_word_pos</code> and <code>set_stream</code> methods.</p>
<p>This implementation uses an output buffer of sixteen <code>u32</code> words, and uses
<ahref="../rand_core/block/struct.BlockRng.html"title="`BlockRng`"><code>BlockRng</code></a> to implement the <ahref="../rand_core/trait.RngCore.html"title="`RngCore`"><code>RngCore</code></a> methods.</p>
<divclass="footnotes"><hr><ol><liid="fn1"><p>D. J. Bernstein, <ahref="https://cr.yp.to/chacha.html"><em>ChaCha, a variant of Salsa20</em></a> <ahref="#fnref1"rev="footnote">↩</a></p></li><liid="fn2"><p><ahref="http://www.ecrypt.eu.org/stream/">eSTREAM: the ECRYPT Stream Cipher Project</a> <ahref="#fnref2"rev="footnote">↩</a></p></li></ol></div></div><h2id='methods'class='small-section-header'>Methods<ahref='#methods'class='anchor'></a></h2><h3id='impl'class='impl'><codeclass='in-band'>impl <aclass="struct"href="../rand_chacha/struct.ChaCha8Rng.html"title="struct rand_chacha::ChaCha8Rng">ChaCha8Rng</a></code><ahref='#impl'class='anchor'></a><aclass='srclink'href='../src/rand_chacha/chacha.rs.html#171-226'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.get_word_pos'class="method"><codeid='get_word_pos.v'>pub fn <ahref='#method.get_word_pos'class='fnname'>get_word_pos</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.u128.html">u128</a></code><aclass='srclink'href='../src/rand_chacha/chacha.rs.html#182-187'title='goto source code'>[src]</a></h4><divclass='docblock'><p>Get the offset from the start of the stream, in 32-bit words.</p>
<p>Since the generated blocks are 16 words (2<sup>4</sup>) long and the
counter is 64-bits, the offset is a 68-bit number. Sub-word offsets are
not supported, hence the result can simply be multiplied by 4 to get a
byte-offset.</p>
</div><h4id='method.set_word_pos'class="method"><codeid='set_word_pos.v'>pub fn <ahref='#method.set_word_pos'class='fnname'>set_word_pos</a>(&mut self, word_offset: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.u128.html">u128</a>)</code><aclass='srclink'href='../src/rand_chacha/chacha.rs.html#195-202'title='goto source code'>[src]</a></h4><divclass='docblock'><p>Set the offset from the start of the stream, in 32-bit words.</p>
<p>As with <code>get_word_pos</code>, we use a 68-bit number. Since the generator
simply cycles at the end of its period (1 ZiB), we ignore the upper
<p>This is initialized to zero; 2<sup>64</sup> unique streams of output
are available per seed/key.</p>
<p>Note that in order to reproduce ChaCha output with a specific 64-bit
nonce, one can convert that nonce to a <code>u64</code> in little-endian fashion
and pass to this function. In theory a 96-bit nonce can be used by
passing the last 64-bits to this function and using the first 32-bits as
the most significant half of the 64-bit counter (which may be set
indirectly via <code>set_word_pos</code>), but this is not directly supported.</p>
</div></div><h2id='implementations'class='small-section-header'>Trait Implementations<ahref='#implementations'class='anchor'></a></h2><divid='implementations-list'><h3id='impl-Clone'class='impl'><codeclass='in-band'>impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html"title="trait core::clone::Clone">Clone</a> for <aclass="struct"href="../rand_chacha/struct.ChaCha8Rng.html"title="struct rand_chacha::ChaCha8Rng">ChaCha8Rng</a></code><ahref='#impl-Clone'class='anchor'></a><aclass='srclink'href='../src/rand_chacha/chacha.rs.html#136'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.clone'class="method hidden"><codeid='clone.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone'class='fnname'>clone</a>(&self) -><aclass="struct"href="../rand_chacha/struct.ChaCha8Rng.html"title="struct rand_chacha::ChaCha8Rng">ChaCha8Rng</a></code><aclass='srclink'href='../src/rand_chacha/chacha.rs.html#136'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Returns a copy of the value. <ahref="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
</div><h4id='method.clone_from'class="method hidden"><codeid='clone_from.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from'class='fnname'>clone_from</a>(&mut self, source: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code><spanclass='since'title='Stable since Rust version 1.0.0'>1.0.0</span><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/clone.rs.html#131-133'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Performs copy-assignment from <code>source</code>. <ahref="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
</div></div><h3id='impl-From%3CChaCha8Core%3E'class='impl'><codeclass='in-band'>impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html"title="trait core::convert::From">From</a><<aclass="struct"href="../rand_chacha/struct.ChaCha8Core.html"title="struct rand_chacha::ChaCha8Core">ChaCha8Core</a>> for <aclass="struct"href="../rand_chacha/struct.ChaCha8Rng.html"title="struct rand_chacha::ChaCha8Rng">ChaCha8Rng</a></code><ahref='#impl-From%3CChaCha8Core%3E'class='anchor'></a><aclass='srclink'href='../src/rand_chacha/chacha.rs.html#230-236'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.from'class="method hidden"><codeid='from.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from'class='fnname'>from</a>(core: <aclass="struct"href="../rand_chacha/struct.ChaCha8Core.html"title="struct rand_chacha::ChaCha8Core">ChaCha8Core</a>) -> Self</code><aclass='srclink'href='../src/rand_chacha/chacha.rs.html#231-235'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3id='impl-Debug'class='impl'><codeclass='in-band'>impl <aclass="trait"href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html"title="trait core::fmt::Debug">Debug</a> for <aclass="struct"href="../rand_chacha/struct.ChaCha8Rng.html"title="struct rand_chacha::ChaCha8Rng">ChaCha8Rng</a></code><ahref='#impl-Debug'class='anchor'></a><aclass='srclink'href='../src/rand_chacha/chacha.rs.html#136'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.fmt'class="method hidden"><codeid='fmt.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt'class='fnname'>fmt</a>(&self, f: &mut <aclass="struct"href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html"title="struct core::fmt::Formatter">Formatter</a>) -><aclass="type"href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html"title="type core::fmt::Result">Result</a></code><aclass='srclink'href='../src/rand_chacha/chacha.rs.html#136'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Formats the value using the given formatter. <ahref="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
</div><h4id='method.next_u64'class="method hidden"><codeid='next_u64.v'>fn <ahref='../rand_core/trait.RngCore.html#tymethod.next_u64'class='fnname'>next_u64</a>(&mut self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a></code><aclass='srclink'href='../src/rand_chacha/chacha.rs.html#158-160'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Return the next random <code>u64</code>. <ahref="../rand_core/trait.RngCore.html#tymethod.next_u64">Read more</a></p>
</div><h4id='method.fill_bytes'class="method hidden"><codeid='fill_bytes.v'>fn <ahref='../rand_core/trait.RngCore.html#tymethod.fill_bytes'class='fnname'>fill_bytes</a>(&mut self, bytes: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&mut [</a><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>)</code><aclass='srclink'href='../src/rand_chacha/chacha.rs.html#162-164'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Fill <code>dest</code> with random data. <ahref="../rand_core/trait.RngCore.html#tymethod.fill_bytes">Read more</a></p>
</div></div><h3id='impl-SeedableRng'class='impl'><codeclass='in-band'>impl <aclass="trait"href="../rand_core/trait.SeedableRng.html"title="trait rand_core::SeedableRng">SeedableRng</a> for <aclass="struct"href="../rand_chacha/struct.ChaCha8Rng.html"title="struct rand_chacha::ChaCha8Rng">ChaCha8Rng</a></code><ahref='#impl-SeedableRng'class='anchor'></a><aclass='srclink'href='../src/rand_chacha/chacha.rs.html#141-150'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='associatedtype.Seed'class="type"><codeid='Seed.t'>type <ahref='../rand_core/trait.SeedableRng.html#associatedtype.Seed'class="type">Seed</a> = <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.array.html">[</a><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.array.html">; 32]</a></code></h4><divclass='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>). <ahref="../rand_core/trait.SeedableRng.html#associatedtype.Seed">Read more</a></p>
</div><h4id='method.from_seed'class="method hidden"><codeid='from_seed.v'>fn <ahref='../rand_core/trait.SeedableRng.html#tymethod.from_seed'class='fnname'>from_seed</a>(seed: Self::<aclass="type"href="../rand_core/trait.SeedableRng.html#associatedtype.Seed"title="type rand_core::SeedableRng::Seed">Seed</a>) -> Self</code><aclass='srclink'href='../src/rand_chacha/chacha.rs.html#144-149'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Create a new PRNG using the given seed. <ahref="../rand_core/trait.SeedableRng.html#tymethod.from_seed">Read more</a></p>
</div><h4id='method.seed_from_u64'class="method hidden"><codeid='seed_from_u64.v'>fn <ahref='../rand_core/trait.SeedableRng.html#method.seed_from_u64'class='fnname'>seed_from_u64</a>(state: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>) -> Self</code><aclass='srclink'href='../src/rand_core/lib.rs.html#306-329'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Create a new PRNG using a <code>u64</code> seed. <ahref="../rand_core/trait.SeedableRng.html#method.seed_from_u64">Read more</a></p>
</div><h4id='method.from_rng'class="method hidden"><codeid='from_rng.v'>fn <ahref='../rand_core/trait.SeedableRng.html#method.from_rng'class='fnname'>from_rng</a><R>(rng: R) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><Self, <aclass="struct"href="../rand_core/error/struct.Error.html"title="struct rand_core::error::Error">Error</a>><spanclass="where fmt-newline">where<br> R: <aclass="trait"href="../rand_core/trait.RngCore.html"title="trait rand_core::RngCore">RngCore</a>, </span></code><aclass='srclink'href='../src/rand_core/lib.rs.html#356-360'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Create a new PRNG seeded from another <code>Rng</code>. <ahref="../rand_core/trait.SeedableRng.html#method.from_rng">Read more</a></p>
</div><h4id='method.from_entropy'class="method hidden"><codeid='from_entropy.v'>fn <ahref='../rand_core/trait.SeedableRng.html#method.from_entropy'class='fnname'>from_entropy</a>() -> Self</code><aclass='srclink'href='../src/rand_core/lib.rs.html#377-383'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Creates a new instance of the RNG seeded via [<code>getrandom</code>]. <ahref="../rand_core/trait.SeedableRng.html#method.from_entropy">Read more</a></p>
</div></div><h3id='impl-ToOwned'class='impl'><codeclass='in-band'>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html"title="trait alloc::borrow::ToOwned">ToOwned</a> for T <spanclass="where fmt-newline">where<br> T: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html"title="trait core::clone::Clone">Clone</a>, </span></code><ahref='#impl-ToOwned'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#81-92'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='associatedtype.Owned'class="type"><codeid='Owned.t'>type <ahref='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#associatedtype.Owned'class="type">Owned</a> = T</code></h4><divclass='docblock'><p>The resulting type after obtaining ownership.</p>
</div><h4id='method.to_owned'class="method hidden"><codeid='to_owned.v'>fn <ahref='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned'class='fnname'>to_owned</a>(&self) -> T</code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#85-87'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Creates owned data from borrowed data, usually by cloning. <ahref="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></p>
</div><h4id='method.clone_into'class="method hidden"><codeid='clone_into.v'>fn <ahref='https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into'class='fnname'>clone_into</a>(&self, target: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T)</code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#89-91'title='goto source code'>[src]</a></h4><divclass='stability hidden'><divclass='stab unstable'><details><summary><spanclass='emoji'>🔬</span> This is a nightly-only experimental API. (<code>toowned_clone_into</code>)</summary><p>recently added</p>
</details></div></div><divclass='docblock hidden'><p>Uses borrowed data to replace owned data, usually by cloning. <ahref="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></p>
</div></div><h3id='impl-TryFrom%3CU%3E'class='impl'><codeclass='in-band'>impl<T, U><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html"title="trait core::convert::Into">Into</a><T>, </span></code><ahref='#impl-TryFrom%3CU%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#571-577'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='associatedtype.Error'class="type"><codeid='Error.t'>type <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error'class="type">Error</a> = <aclass="enum"href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html"title="enum core::convert::Infallible">Infallible</a></code></h4><divclass='docblock'><p>The type returned in the event of a conversion error.</p>
</div><h4id='method.try_from'class="method hidden"><codeid='try_from.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from'class='fnname'>try_from</a>(value: U) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><T, <T as <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><U>>::<aclass="type"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#574-576'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3id='impl-TryInto%3CU%3E'class='impl'><codeclass='in-band'>impl<T, U><aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html"title="trait core::convert::TryInto">TryInto</a><U> for T <spanclass="where fmt-newline">where<br> U: <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><ahref='#impl-TryInto%3CU%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#559-566'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='associatedtype.Error-1'class="type"><codeid='Error.t-1'>type <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error'class="type">Error</a> = <U as <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="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><divclass='docblock'><p>The type returned in the event of a conversion error.</p>
</div><h4id='method.try_into'class="method hidden"><codeid='try_into.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into'class='fnname'>try_into</a>(self) -><aclass="enum"href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html"title="enum core::result::Result">Result</a><U, <U as <aclass="trait"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html"title="trait core::convert::TryFrom">TryFrom</a><T>>::<aclass="type"href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error"title="type core::convert::TryFrom::Error">Error</a>></code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/convert.rs.html#563-565'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Performs the conversion.</p>
</div></div><h3id='impl-BorrowMut%3CT%3E'class='impl'><codeclass='in-band'>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html"title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <spanclass="where fmt-newline">where<br> T: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></code><ahref='#impl-BorrowMut%3CT%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#218-220'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.borrow_mut'class="method hidden"><codeid='borrow_mut.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut'class='fnname'>borrow_mut</a>(&mut self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&mut </a>T</code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#219'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Mutably borrows from an owned value. <ahref="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
</div></div><h3id='impl-Borrow%3CT%3E'class='impl'><codeclass='in-band'>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html"title="trait core::borrow::Borrow">Borrow</a><T> for T <spanclass="where fmt-newline">where<br> T: ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></code><ahref='#impl-Borrow%3CT%3E'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#213-215'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.borrow'class="method hidden"><codeid='borrow.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow'class='fnname'>borrow</a>(&self) -><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>T</code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#214'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Immutably borrows from an owned value. <ahref="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
</div></div><h3id='impl-Any'class='impl'><codeclass='in-band'>impl<T><aclass="trait"href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html"title="trait core::any::Any">Any</a> for T <spanclass="where fmt-newline">where<br> T: 'static + ?<aclass="trait"href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html"title="trait core::marker::Sized">Sized</a>, </span></code><ahref='#impl-Any'class='anchor'></a><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#100-102'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.type_id'class="method hidden"><codeid='type_id.v'>fn <ahref='https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id'class='fnname'>type_id</a>(&self) -><aclass="struct"href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html"title="struct core::any::TypeId">TypeId</a></code><aclass='srclink'href='https://doc.rust-lang.org/nightly/src/core/any.rs.html#101'title='goto source code'>[src]</a></h4><divclass='docblock hidden'><p>Gets the <code>TypeId</code> of <code>self</code>. <ahref="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></p>
</div></div><h3id='impl-VZip%3CV%3E'class='impl'><codeclass='in-band'>impl<V, T><aclass="trait"href="../ppv_lite86/types/types/trait.VZip.html"title="trait ppv_lite86::types::types::VZip">VZip</a><V> for T <spanclass="where fmt-newline">where<br> V: <aclass="trait"href="../ppv_lite86/types/types/trait.MultiLane.html"title="trait ppv_lite86::types::types::MultiLane">MultiLane</a><T>, </span></code><ahref='#impl-VZip%3CV%3E'class='anchor'></a><aclass='srclink'href='../src/ppv_lite86/types.rs.html#212-220'title='goto source code'>[src]</a></h3><divclass='impl-items'><h4id='method.vzip'class="method hidden"><codeid='vzip.v'>fn <ahref='../ppv_lite86/types/types/trait.VZip.html#tymethod.vzip'class='fnname'>vzip</a>(self) -> V</code><aclass='srclink'href='../src/ppv_lite86/types.rs.html#217-219'title='goto source code'>[src]</a></h4></div></div></section><sectionid="search"class="content hidden"></section><sectionclass="footer"></section><asideid="help"class="hidden"><div><h1class="hidden">Help</h1><divclass="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><divclass="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><scriptsrc="../aliases.js"></script><scriptsrc="../main.js"></script><scriptdefersrc="../search-index.js"></script></body></html>
