| <!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 wrapper around any PRNG that implements `BlockRngCore`, that adds the ability to reseed it."><meta name="keywords" content="rust, rustlang, rust-lang, ReseedingRng"><title>ReseedingRng in rand::rngs::adapter - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../main.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="icon" href="https://www.rust-lang.org/favicon.ico"></head><body class="rustdoc struct"><!--[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">☰</button><a class="sidebar-logo" href="../../../rand/index.html"><div class="logo-container"><img src="https://www.rust-lang.org/logos/rust-logo-128x128-blk.png" alt="logo"></div></a><h2></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../../../rand/index.html"><div class="logo-container"> |
| <img src="https://www.rust-lang.org/logos/rust-logo-128x128-blk.png" alt="logo"></div></a><h2 class="location"><a href="#">ReseedingRng</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block"><li><a href="#method.new">new</a></li><li><a href="#method.reseed">reseed</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block"><li><a href="#impl-Clone-for-ReseedingRng%3CR%2C%20Rsdr%3E">Clone</a></li><li><a href="#impl-CryptoRng-for-ReseedingRng%3CR%2C%20Rsdr%3E">CryptoRng</a></li><li><a href="#impl-Debug-for-ReseedingRng%3CR%2C%20Rsdr%3E">Debug</a></li><li><a href="#impl-RngCore-for-ReseedingRng%3CR%2C%20Rsdr%3E">RngCore</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block"><li><a href="#impl-RefUnwindSafe-for-ReseedingRng%3CR%2C%20Rsdr%3E">RefUnwindSafe</a></li><li><a href="#impl-Send-for-ReseedingRng%3CR%2C%20Rsdr%3E">Send</a></li><li><a href="#impl-Sync-for-ReseedingRng%3CR%2C%20Rsdr%3E">Sync</a></li><li><a href="#impl-Unpin-for-ReseedingRng%3CR%2C%20Rsdr%3E">Unpin</a></li><li><a href="#impl-UnwindSafe-for-ReseedingRng%3CR%2C%20Rsdr%3E">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block"><li><a href="#impl-Any-for-ReseedingRng%3CR%2C%20Rsdr%3E">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E">Borrow<T></a></li><li><a href="#impl-BorrowMut%3CT%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E">BorrowMut<T></a></li><li><a href="#impl-CryptoRngCore-for-ReseedingRng%3CR%2C%20Rsdr%3E">CryptoRngCore</a></li><li><a href="#impl-From%3CT%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E">From<T></a></li><li><a href="#impl-Into%3CU%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E">Into<U></a></li><li><a href="#impl-ToOwned-for-ReseedingRng%3CR%2C%20Rsdr%3E">ToOwned</a></li><li><a href="#impl-TryFrom%3CU%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E">TryFrom<U></a></li><li><a href="#impl-TryInto%3CU%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E">TryInto<U></a></li><li><a href="#impl-VZip%3CV%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E">VZip<V></a></li></ul></section><h2><a href="index.html">In rand::rngs::adapter</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1 class="fqn">Struct <a href="../../index.html">rand</a>::<wbr><a href="../index.html">rngs</a>::<wbr><a href="index.html">adapter</a>::<wbr><a class="struct" href="#">ReseedingRng</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../../../clipboard.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="srclink" href="../../../src/rand/rngs/adapter/reseeding.rs.html#85-88">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span></div><div class="item-decl"><pre class="rust struct"><code>pub struct ReseedingRng<R, Rsdr>(_)<br><span class="where">where<br> R: <a class="trait" href="../../../rand_core/block/trait.BlockRngCore.html" title="trait rand_core::block::BlockRngCore">BlockRngCore</a> + <a class="trait" href="../../trait.SeedableRng.html" title="trait rand::SeedableRng">SeedableRng</a>,<br> Rsdr: <a class="trait" href="../../trait.RngCore.html" title="trait rand::RngCore">RngCore</a></span>;</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A wrapper around any PRNG that implements <a href="../../../rand_core/block/trait.BlockRngCore.html"><code>BlockRngCore</code></a>, that adds the |
| ability to reseed it.</p> |
| <p><code>ReseedingRng</code> reseeds the underlying PRNG in the following cases:</p> |
| <ul> |
| <li>On a manual call to <a href="struct.ReseedingRng.html#method.reseed"><code>reseed()</code></a>.</li> |
| <li>After <code>clone()</code>, the clone will be reseeded on first use.</li> |
| <li>When a process is forked on UNIX, the RNGs in both the parent and child |
| processes will be reseeded just before the next call to |
| <a href="../../../rand_core/block/trait.BlockRngCore.html#tymethod.generate" title="BlockRngCore::generate"><code>BlockRngCore::generate</code></a>, i.e. “soon”. For ChaCha and Hc128 this is a |
| maximum of fifteen <code>u32</code> values before reseeding.</li> |
| <li>After the PRNG has generated a configurable number of random bytes.</li> |
| </ul> |
| <h2 id="when-should-reseeding-after-a-fixed-number-of-generated-bytes-be-used"><a href="#when-should-reseeding-after-a-fixed-number-of-generated-bytes-be-used">When should reseeding after a fixed number of generated bytes be used?</a></h2> |
| <p>Reseeding after a fixed number of generated bytes is never strictly |
| <em>necessary</em>. Cryptographic PRNGs don’t have a limited number of bytes they |
| can output, or at least not a limit reachable in any practical way. There is |
| no such thing as ‘running out of entropy’.</p> |
| <p>Occasionally reseeding can be seen as some form of ‘security in depth’. Even |
| if in the future a cryptographic weakness is found in the CSPRNG being used, |
| or a flaw in the implementation, occasionally reseeding should make |
| exploiting it much more difficult or even impossible.</p> |
| <p>Use <a href="struct.ReseedingRng.html#method.new"><code>ReseedingRng::new</code></a> with a <code>threshold</code> of <code>0</code> to disable reseeding |
| after a fixed number of generated bytes.</p> |
| <h2 id="limitations"><a href="#limitations">Limitations</a></h2> |
| <p>It is recommended that a <code>ReseedingRng</code> (including <code>ThreadRng</code>) not be used |
| from a fork handler. |
| Use <code>OsRng</code> or <code>getrandom</code>, or defer your use of the RNG until later.</p> |
| <h2 id="error-handling"><a href="#error-handling">Error handling</a></h2> |
| <p>Although unlikely, reseeding the wrapped PRNG can fail. <code>ReseedingRng</code> will |
| never panic but try to handle the error intelligently through some |
| combination of retrying and delaying reseeding until later. |
| If handling the source error fails <code>ReseedingRng</code> will continue generating |
| data from the wrapped PRNG without reseeding.</p> |
| <p>Manually calling <a href="struct.ReseedingRng.html#method.reseed"><code>reseed()</code></a> will not have this retry or delay logic, but |
| reports the error.</p> |
| <h2 id="example"><a href="#example">Example</a></h2> |
| <div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>rand::prelude::<span class="kw-2">*</span>; |
| <span class="kw">use </span>rand_chacha::ChaCha20Core; <span class="comment">// Internal part of ChaChaRng that |
| // implements BlockRngCore |
| </span><span class="kw">use </span>rand::rngs::OsRng; |
| <span class="kw">use </span>rand::rngs::adapter::ReseedingRng; |
| |
| <span class="kw">let </span>prng = ChaCha20Core::from_entropy(); |
| <span class="kw">let </span><span class="kw-2">mut </span>reseeding_rng = ReseedingRng::new(prng, <span class="number">0</span>, OsRng); |
| |
| <span class="macro">println!</span>(<span class="string">"{}"</span>, reseeding_rng.gen::<u64>()); |
| |
| <span class="kw">let </span><span class="kw-2">mut </span>cloned_rng = reseeding_rng.clone(); |
| <span class="macro">assert!</span>(reseeding_rng.gen::<u64>() != cloned_rng.gen::<u64>());</code></pre></div> |
| </div></details><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><div id="implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a class="srclink rightside" href="../../../src/rand/rngs/adapter/reseeding.rs.html#90-109">source</a><a href="#impl-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<R, Rsdr> <a class="struct" href="struct.ReseedingRng.html" title="struct rand::rngs::adapter::ReseedingRng">ReseedingRng</a><R, Rsdr><span class="where fmt-newline">where<br> R: <a class="trait" href="../../../rand_core/block/trait.BlockRngCore.html" title="trait rand_core::block::BlockRngCore">BlockRngCore</a> + <a class="trait" href="../../trait.SeedableRng.html" title="trait rand::SeedableRng">SeedableRng</a>,<br> Rsdr: <a class="trait" href="../../trait.RngCore.html" title="trait rand::RngCore">RngCore</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.new" class="method has-srclink"><a class="srclink rightside" href="../../../src/rand/rngs/adapter/reseeding.rs.html#101-103">source</a><h4 class="code-header">pub fn <a href="#method.new" class="fnname">new</a>(rng: R, threshold: u64, reseeder: Rsdr) -> Self</h4></section></summary><div class="docblock"><p>Create a new <code>ReseedingRng</code> from an existing PRNG, combined with a RNG |
| to use as reseeder.</p> |
| <p><code>threshold</code> sets the number of generated bytes after which to reseed the |
| PRNG. Set it to zero to never reseed based on the number of generated |
| values.</p> |
| </div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.reseed" class="method has-srclink"><a class="srclink rightside" href="../../../src/rand/rngs/adapter/reseeding.rs.html#106-108">source</a><h4 class="code-header">pub fn <a href="#method.reseed" class="fnname">reseed</a>(&mut self) -> Result<(), <a class="struct" href="../../struct.Error.html" title="struct rand::Error">Error</a>></h4></section></summary><div class="docblock"><p>Reseed the internal PRNG.</p> |
| </div></details></div></details></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Clone-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a class="srclink rightside" href="../../../src/rand/rngs/adapter/reseeding.rs.html#137-147">source</a><a href="#impl-Clone-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<R, Rsdr> Clone for <a class="struct" href="struct.ReseedingRng.html" title="struct rand::rngs::adapter::ReseedingRng">ReseedingRng</a><R, Rsdr><span class="where fmt-newline">where<br> R: <a class="trait" href="../../../rand_core/block/trait.BlockRngCore.html" title="trait rand_core::block::BlockRngCore">BlockRngCore</a> + <a class="trait" href="../../trait.SeedableRng.html" title="trait rand::SeedableRng">SeedableRng</a> + Clone,<br> Rsdr: <a class="trait" href="../../trait.RngCore.html" title="trait rand::RngCore">RngCore</a> + Clone,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../../src/rand/rngs/adapter/reseeding.rs.html#142-146">source</a><a href="#method.clone" class="anchor"></a><h4 class="code-header">fn <a class="fnname">clone</a>(&self) -> <a class="struct" href="struct.ReseedingRng.html" title="struct rand::rngs::adapter::ReseedingRng">ReseedingRng</a><R, Rsdr></h4></section></summary><div class='docblock'>Returns a copy of the value. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone_from" class="method trait-impl has-srclink"><span class="since rightside" title="Stable since Rust version 1.0.0">1.0.0</span><a href="#method.clone_from" class="anchor"></a><h4 class="code-header">const fn <a class="fnname">clone_from</a>(&mut self, source: &Self)</h4></section></summary><div class='docblock'>Performs copy-assignment from <code>source</code>. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Debug-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a class="srclink rightside" href="../../../src/rand/rngs/adapter/reseeding.rs.html#84">source</a><a href="#impl-Debug-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<R: Debug, Rsdr: Debug> Debug for <a class="struct" href="struct.ReseedingRng.html" title="struct rand::rngs::adapter::ReseedingRng">ReseedingRng</a><R, Rsdr><span class="where fmt-newline">where<br> R: <a class="trait" href="../../../rand_core/block/trait.BlockRngCore.html" title="trait rand_core::block::BlockRngCore">BlockRngCore</a> + <a class="trait" href="../../trait.SeedableRng.html" title="trait rand::SeedableRng">SeedableRng</a>,<br> Rsdr: <a class="trait" href="../../trait.RngCore.html" title="trait rand::RngCore">RngCore</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../../src/rand/rngs/adapter/reseeding.rs.html#84">source</a><a href="#method.fmt" class="anchor"></a><h4 class="code-header">fn <a class="fnname">fmt</a>(&self, f: &mut Formatter<'_>) -> Result</h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-RngCore-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a class="srclink rightside" href="../../../src/rand/rngs/adapter/reseeding.rs.html#113-135">source</a><a href="#impl-RngCore-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<R, Rsdr: <a class="trait" href="../../trait.RngCore.html" title="trait rand::RngCore">RngCore</a>> <a class="trait" href="../../trait.RngCore.html" title="trait rand::RngCore">RngCore</a> for <a class="struct" href="struct.ReseedingRng.html" title="struct rand::rngs::adapter::ReseedingRng">ReseedingRng</a><R, Rsdr><span class="where fmt-newline">where<br> R: <a class="trait" href="../../../rand_core/block/trait.BlockRngCore.html" title="trait rand_core::block::BlockRngCore">BlockRngCore</a><Item = u32> + <a class="trait" href="../../trait.SeedableRng.html" title="trait rand::SeedableRng">SeedableRng</a>,<br> <R as <a class="trait" href="../../../rand_core/block/trait.BlockRngCore.html" title="trait rand_core::block::BlockRngCore">BlockRngCore</a>>::<a class="associatedtype" href="../../../rand_core/block/trait.BlockRngCore.html#associatedtype.Results" title="type rand_core::block::BlockRngCore::Results">Results</a>: AsRef<[u32]> + AsMut<[u32]>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.next_u32" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../../src/rand/rngs/adapter/reseeding.rs.html#119-121">source</a><a href="#method.next_u32" class="anchor"></a><h4 class="code-header">fn <a href="../../trait.RngCore.html#tymethod.next_u32" class="fnname">next_u32</a>(&mut self) -> u32</h4></section></summary><div class='docblock'>Return the next random <code>u32</code>. <a href="../../trait.RngCore.html#tymethod.next_u32">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.next_u64" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../../src/rand/rngs/adapter/reseeding.rs.html#124-126">source</a><a href="#method.next_u64" class="anchor"></a><h4 class="code-header">fn <a href="../../trait.RngCore.html#tymethod.next_u64" class="fnname">next_u64</a>(&mut self) -> u64</h4></section></summary><div class='docblock'>Return the next random <code>u64</code>. <a href="../../trait.RngCore.html#tymethod.next_u64">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.fill_bytes" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../../src/rand/rngs/adapter/reseeding.rs.html#128-130">source</a><a href="#method.fill_bytes" class="anchor"></a><h4 class="code-header">fn <a href="../../trait.RngCore.html#tymethod.fill_bytes" class="fnname">fill_bytes</a>(&mut self, dest: &mut [u8])</h4></section></summary><div class='docblock'>Fill <code>dest</code> with random data. <a href="../../trait.RngCore.html#tymethod.fill_bytes">Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_fill_bytes" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../../src/rand/rngs/adapter/reseeding.rs.html#132-134">source</a><a href="#method.try_fill_bytes" class="anchor"></a><h4 class="code-header">fn <a href="../../trait.RngCore.html#tymethod.try_fill_bytes" class="fnname">try_fill_bytes</a>(&mut self, dest: &mut [u8]) -> Result<(), <a class="struct" href="../../struct.Error.html" title="struct rand::Error">Error</a>></h4></section></summary><div class='docblock'>Fill <code>dest</code> entirely with random data. <a href="../../trait.RngCore.html#tymethod.try_fill_bytes">Read more</a></div></details></div></details><section id="impl-CryptoRng-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a class="srclink rightside" href="../../../src/rand/rngs/adapter/reseeding.rs.html#149-154">source</a><a href="#impl-CryptoRng-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<R, Rsdr> <a class="trait" href="../../trait.CryptoRng.html" title="trait rand::CryptoRng">CryptoRng</a> for <a class="struct" href="struct.ReseedingRng.html" title="struct rand::rngs::adapter::ReseedingRng">ReseedingRng</a><R, Rsdr><span class="where fmt-newline">where<br> R: <a class="trait" href="../../../rand_core/block/trait.BlockRngCore.html" title="trait rand_core::block::BlockRngCore">BlockRngCore</a> + <a class="trait" href="../../trait.SeedableRng.html" title="trait rand::SeedableRng">SeedableRng</a> + <a class="trait" href="../../trait.CryptoRng.html" title="trait rand::CryptoRng">CryptoRng</a>,<br> Rsdr: <a class="trait" href="../../trait.RngCore.html" title="trait rand::RngCore">RngCore</a> + <a class="trait" href="../../trait.CryptoRng.html" title="trait rand::CryptoRng">CryptoRng</a>,</span></h3></section></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"><section id="impl-RefUnwindSafe-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a href="#impl-RefUnwindSafe-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<R, Rsdr> RefUnwindSafe for <a class="struct" href="struct.ReseedingRng.html" title="struct rand::rngs::adapter::ReseedingRng">ReseedingRng</a><R, Rsdr><span class="where fmt-newline">where<br> R: RefUnwindSafe,<br> Rsdr: RefUnwindSafe,<br> <R as <a class="trait" href="../../../rand_core/block/trait.BlockRngCore.html" title="trait rand_core::block::BlockRngCore">BlockRngCore</a>>::<a class="associatedtype" href="../../../rand_core/block/trait.BlockRngCore.html#associatedtype.Results" title="type rand_core::block::BlockRngCore::Results">Results</a>: RefUnwindSafe,</span></h3></section><section id="impl-Send-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a href="#impl-Send-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<R, Rsdr> Send for <a class="struct" href="struct.ReseedingRng.html" title="struct rand::rngs::adapter::ReseedingRng">ReseedingRng</a><R, Rsdr><span class="where fmt-newline">where<br> R: Send,<br> Rsdr: Send,<br> <R as <a class="trait" href="../../../rand_core/block/trait.BlockRngCore.html" title="trait rand_core::block::BlockRngCore">BlockRngCore</a>>::<a class="associatedtype" href="../../../rand_core/block/trait.BlockRngCore.html#associatedtype.Results" title="type rand_core::block::BlockRngCore::Results">Results</a>: Send,</span></h3></section><section id="impl-Sync-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a href="#impl-Sync-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<R, Rsdr> Sync for <a class="struct" href="struct.ReseedingRng.html" title="struct rand::rngs::adapter::ReseedingRng">ReseedingRng</a><R, Rsdr><span class="where fmt-newline">where<br> R: Sync,<br> Rsdr: Sync,<br> <R as <a class="trait" href="../../../rand_core/block/trait.BlockRngCore.html" title="trait rand_core::block::BlockRngCore">BlockRngCore</a>>::<a class="associatedtype" href="../../../rand_core/block/trait.BlockRngCore.html#associatedtype.Results" title="type rand_core::block::BlockRngCore::Results">Results</a>: Sync,</span></h3></section><section id="impl-Unpin-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a href="#impl-Unpin-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<R, Rsdr> Unpin for <a class="struct" href="struct.ReseedingRng.html" title="struct rand::rngs::adapter::ReseedingRng">ReseedingRng</a><R, Rsdr><span class="where fmt-newline">where<br> R: Unpin,<br> Rsdr: Unpin,<br> <R as <a class="trait" href="../../../rand_core/block/trait.BlockRngCore.html" title="trait rand_core::block::BlockRngCore">BlockRngCore</a>>::<a class="associatedtype" href="../../../rand_core/block/trait.BlockRngCore.html#associatedtype.Results" title="type rand_core::block::BlockRngCore::Results">Results</a>: Unpin,</span></h3></section><section id="impl-UnwindSafe-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a href="#impl-UnwindSafe-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<R, Rsdr> UnwindSafe for <a class="struct" href="struct.ReseedingRng.html" title="struct rand::rngs::adapter::ReseedingRng">ReseedingRng</a><R, Rsdr><span class="where fmt-newline">where<br> R: UnwindSafe,<br> Rsdr: UnwindSafe,<br> <R as <a class="trait" href="../../../rand_core/block/trait.BlockRngCore.html" title="trait rand_core::block::BlockRngCore">BlockRngCore</a>>::<a class="associatedtype" href="../../../rand_core/block/trait.BlockRngCore.html#associatedtype.Results" title="type rand_core::block::BlockRngCore::Results">Results</a>: UnwindSafe,</span></h3></section></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Any-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a href="#impl-Any-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<T> Any for T<span class="where fmt-newline">where<br> T: 'static + ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl has-srclink"><a href="#method.type_id" class="anchor"></a><h4 class="code-header">fn <a class="fnname">type_id</a>(&self) -> TypeId</h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a href="#impl-Borrow%3CT%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<T> Borrow<T> for T<span class="where fmt-newline">where<br> T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span><a href="#method.borrow" class="anchor"></a><h4 class="code-header">fn <a class="fnname">borrow</a>(&self) -> &T</h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a href="#impl-BorrowMut%3CT%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<T> BorrowMut<T> for T<span class="where fmt-newline">where<br> T: ?Sized,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span><a href="#method.borrow_mut" class="anchor"></a><h4 class="code-header">fn <a class="fnname">borrow_mut</a>(&mut self) -> &mut T</h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-CryptoRngCore-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a class="srclink rightside" href="../../../src/rand_core/lib.rs.html#234">source</a><a href="#impl-CryptoRngCore-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<T> <a class="trait" href="../../../rand_core/trait.CryptoRngCore.html" title="trait rand_core::CryptoRngCore">CryptoRngCore</a> for T<span class="where fmt-newline">where<br> T: <a class="trait" href="../../trait.CryptoRng.html" title="trait rand::CryptoRng">CryptoRng</a> + <a class="trait" href="../../trait.RngCore.html" title="trait rand::RngCore">RngCore</a>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.as_rngcore" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../../src/rand_core/lib.rs.html#235">source</a><a href="#method.as_rngcore" class="anchor"></a><h4 class="code-header">fn <a href="../../../rand_core/trait.CryptoRngCore.html#tymethod.as_rngcore" class="fnname">as_rngcore</a>(&mut self) -> &mut dyn <a class="trait" href="../../trait.RngCore.html" title="trait rand::RngCore">RngCore</a></h4></section></summary><div class='docblock'>Upcast to an <a href="../../trait.RngCore.html" title="RngCore"><code>RngCore</code></a> trait object.</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a href="#impl-From%3CT%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<T> From<T> for T</h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.from" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.from" class="anchor"></a><h4 class="code-header">fn <a class="fnname">from</a>(t: T) -> T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p> |
| </div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a href="#impl-Into%3CU%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<T, U> Into<U> for T<span class="where fmt-newline">where<br> U: From<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.into" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">into</a>(self) -> U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p> |
| <p>That is, this conversion is whatever the implementation of |
| <code>[From]<T> for U</code> chooses to do.</p> |
| </div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-ToOwned-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a href="#impl-ToOwned-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<T> ToOwned for T<span class="where fmt-newline">where<br> T: Clone,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Owned" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Owned" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Owned</a> = T</h4></section></summary><div class='docblock'>The resulting type after obtaining ownership.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.to_owned" class="method trait-impl has-srclink"><a href="#method.to_owned" class="anchor"></a><h4 class="code-header">fn <a class="fnname">to_owned</a>(&self) -> T</h4></section></summary><div class='docblock'>Creates owned data from borrowed data, usually by cloning. <a>Read more</a></div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone_into" class="method trait-impl has-srclink"><a href="#method.clone_into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">clone_into</a>(&self, target: &mut T)</h4></section></summary><div class='docblock'>Uses borrowed data to replace owned data, usually by cloning. <a>Read more</a></div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a href="#impl-TryFrom%3CU%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<T, U> TryFrom<U> for T<span class="where fmt-newline">where<br> U: Into<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error-1" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Error</a> = Infallible</h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.try_from" class="anchor"></a><h4 class="code-header">fn <a class="fnname">try_from</a>(value: U) -> Result<T, <T as TryFrom<U>>::Error></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a href="#impl-TryInto%3CU%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<T, U> TryInto<U> for T<span class="where fmt-newline">where<br> U: TryFrom<T>,</span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Error" class="anchor"></a><h4 class="code-header">type <a class="associatedtype">Error</a> = <U as TryFrom<T>>::Error</h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl has-srclink"><span class="since rightside" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span><a href="#method.try_into" class="anchor"></a><h4 class="code-header">fn <a class="fnname">try_into</a>(self) -> Result<U, <U as TryFrom<T>>::Error></h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-VZip%3CV%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="impl has-srclink"><a class="srclink rightside" href="../../../src/ppv_lite86/types.rs.html#221">source</a><a href="#impl-VZip%3CV%3E-for-ReseedingRng%3CR%2C%20Rsdr%3E" class="anchor"></a><h3 class="code-header">impl<V, T> <a class="trait" href="../../../ppv_lite86/types/trait.VZip.html" title="trait ppv_lite86::types::VZip">VZip</a><V> for T<span class="where fmt-newline">where<br> V: <a class="trait" href="../../../ppv_lite86/types/trait.MultiLane.html" title="trait ppv_lite86::types::MultiLane">MultiLane</a><T>,</span></h3></section></summary><div class="impl-items"><section id="method.vzip" class="method trait-impl has-srclink"><a class="srclink rightside" href="../../../src/ppv_lite86/types.rs.html#226">source</a><a href="#method.vzip" class="anchor"></a><h4 class="code-header">fn <a href="../../../ppv_lite86/types/trait.VZip.html#tymethod.vzip" class="fnname">vzip</a>(self) -> V</h4></section></div></details></div></section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="rand" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |