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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 `ReadRng` struct in crate `rand`."><meta name="keywords" content="rust, rustlang, rust-lang, ReadRng"><title>rand::rngs::adapter::ReadRng - 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">&#9776;</div><a 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><p class='location'>Struct ReadRng</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.new">new</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Debug">Debug</a><a href="#impl-RngCore">RngCore</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&lt;T&gt;</a><a href="#impl-BorrowMut%3CT%3E">BorrowMut&lt;T&gt;</a><a href="#impl-From%3CT%3E">From&lt;T&gt;</a><a href="#impl-Into%3CU%3E">Into&lt;U&gt;</a><a href="#impl-Rng">Rng</a><a href="#impl-TryFrom%3CU%3E">TryFrom&lt;U&gt;</a><a href="#impl-TryInto%3CU%3E">TryInto&lt;U&gt;</a><a href="#impl-VZip%3CV%3E">VZip&lt;V&gt;</a></div></div><p class='location'><a href='../../index.html'>rand</a>::<wbr><a href='../index.html'>rngs</a>::<wbr><a href='index.html'>adapter</a></p><script>window.sidebarCurrent = {name: 'ReadRng', 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'>&#x2212;</span>]</a></span><a class='srclink' href='../../../src/rand/rngs/adapter/read.rs.html#47-49' title='goto source code'>[src]</a></span><span class='in-band'>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=''>ReadRng</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class='rust struct'>pub struct ReadRng&lt;R&gt; { /* fields omitted */
[<code>std::io::Read</code>], for example files.</p>
<p>This will work best with an infinite reader, but that is not required.</p>
<p>This can be used with <code>/dev/urandom</code> on Unix but it is recommended to use
<a href="crate::rngs::OsRng"><code>OsRng</code></a> instead.</p>
<h1 id="panics" class="section-header"><a href="#panics">Panics</a></h1>
<p><code>ReadRng</code> uses [<code>std::io::Read::read_exact</code>], which retries on interrupts.
All other errors from the underlying reader, including when it does not
have enough data, will only be reported through <a href="RngCore::try_fill_bytes"><code>try_fill_bytes</code></a>.
The other [<code>RngCore</code>] methods will panic in case of an error.</p>
<h1 id="example" class="section-header"><a href="#example">Example</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">rand</span>::<span class="ident">Rng</span>;
<span class="kw">use</span> <span class="ident">rand</span>::<span class="ident">rngs</span>::<span class="ident">adapter</span>::<span class="ident">ReadRng</span>;
<span class="kw">let</span> <span class="ident">data</span> <span class="op">=</span> <span class="macro">vec</span><span class="macro">!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>, <span class="number">6</span>, <span class="number">7</span>, <span class="number">8</span>];
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">rng</span> <span class="op">=</span> <span class="ident">ReadRng</span>::<span class="ident">new</span>(<span class="kw-2">&amp;</span><span class="ident">data</span>[..]);
<span class="macro">println</span><span class="macro">!</span>(<span class="string">&quot;{:x}&quot;</span>, <span class="ident">rng</span>.<span class="ident">gen</span>::<span class="op">&lt;</span><span class="ident">u32</span><span class="op">&gt;</span>());</pre></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&lt;R:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Read.html" title="trait std::io::Read">Read</a>&gt; <a class="struct" href="../../../rand/rngs/adapter/struct.ReadRng.html" title="struct rand::rngs::adapter::ReadRng">ReadRng</a>&lt;R&gt;</code><a href='#impl' class='anchor'></a><a class='srclink' href='../../../src/rand/rngs/adapter/read.rs.html#51-58' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.new' class="method"><code id='new.v'>pub fn <a href='#method.new' class='fnname'>new</a>(r: R) -&gt; <a class="struct" href="../../../rand/rngs/adapter/struct.ReadRng.html" title="struct rand::rngs::adapter::ReadRng">ReadRng</a>&lt;R&gt;</code><a class='srclink' href='../../../src/rand/rngs/adapter/read.rs.html#53-57' title='goto source code'>[src]</a></h4><div class='docblock'><p>Create a new <code>ReadRng</code> from a <code>Read</code>.</p>
</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-Debug' class='impl'><code class='in-band'>impl&lt;R:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>&gt; <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/rngs/adapter/struct.ReadRng.html" title="struct rand::rngs::adapter::ReadRng">ReadRng</a>&lt;R&gt;</code><a href='#impl-Debug' class='anchor'></a><a class='srclink' href='../../../src/rand/rngs/adapter/read.rs.html#46' 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>(&amp;self, f: &amp;mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -&gt; <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/rngs/adapter/read.rs.html#46' 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>
</div></div><h3 id='impl-RngCore' class='impl'><code class='in-band'>impl&lt;R:&nbsp;<a class="trait" href="https://doc.rust-lang.org/nightly/std/io/trait.Read.html" title="trait std::io::Read">Read</a>&gt; <a class="trait" href="../../../rand/trait.RngCore.html" title="trait rand::RngCore">RngCore</a> for <a class="struct" href="../../../rand/rngs/adapter/struct.ReadRng.html" title="struct rand::rngs::adapter::ReadRng">ReadRng</a>&lt;R&gt;</code><a href='#impl-RngCore' class='anchor'></a><a class='srclink' href='../../../src/rand/rngs/adapter/read.rs.html#60-79' 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/trait.RngCore.html#tymethod.next_u32' class='fnname'>next_u32</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code><a class='srclink' href='../../../src/rand/rngs/adapter/read.rs.html#61-63' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Return the next random <code>u32</code>. <a href="../../../rand/trait.RngCore.html#tymethod.next_u32">Read more</a></p>
</div><h4 id='method.next_u64' class="method hidden"><code id='next_u64.v'>fn <a href='../../../rand/trait.RngCore.html#tymethod.next_u64' class='fnname'>next_u64</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a></code><a class='srclink' href='../../../src/rand/rngs/adapter/read.rs.html#65-67' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Return the next random <code>u64</code>. <a href="../../../rand/trait.RngCore.html#tymethod.next_u64">Read more</a></p>
</div><h4 id='method.fill_bytes' class="method hidden"><code id='fill_bytes.v'>fn <a href='../../../rand/trait.RngCore.html#tymethod.fill_bytes' class='fnname'>fill_bytes</a>(&amp;mut self, dest: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;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/rngs/adapter/read.rs.html#69-72' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Fill <code>dest</code> with random data. <a href="../../../rand/trait.RngCore.html#tymethod.fill_bytes">Read more</a></p>
</div><h4 id='method.try_fill_bytes' class="method hidden"><code id='try_fill_bytes.v'>fn <a href='../../../rand/trait.RngCore.html#tymethod.try_fill_bytes' class='fnname'>try_fill_bytes</a>(&amp;mut self, dest: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&amp;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>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <a class="struct" href="../../../rand/struct.Error.html" title="struct rand::Error">Error</a>&gt;</code><a class='srclink' href='../../../src/rand/rngs/adapter/read.rs.html#74-78' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Fill <code>dest</code> entirely with random data. <a href="../../../rand/trait.RngCore.html#tymethod.try_fill_bytes">Read more</a></p>
</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&lt;R&gt; <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/rngs/adapter/struct.ReadRng.html" title="struct rand::rngs::adapter::ReadRng">ReadRng</a>&lt;R&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;R: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,&nbsp;</span></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&lt;R&gt; <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/rngs/adapter/struct.ReadRng.html" title="struct rand::rngs::adapter::ReadRng">ReadRng</a>&lt;R&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;R: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,&nbsp;</span></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-Rng' class='impl'><code class='in-band'>impl&lt;R&gt; <a class="trait" href="../../../rand/trait.Rng.html" title="trait rand::Rng">Rng</a> for R <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;R: <a class="trait" href="../../../rand/trait.RngCore.html" title="trait rand::RngCore">RngCore</a> + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,&nbsp;</span></code><a href='#impl-Rng' class='anchor'></a><a class='srclink' href='../../../src/rand/lib.rs.html#392' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.gen' class="method"><code id='gen.v'>fn <a href='../../../rand/trait.Rng.html#method.gen' class='fnname'>gen</a>&lt;T&gt;(&amp;mut self) -&gt; T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;<a class="struct" href="../../../rand/distributions/struct.Standard.html" title="struct rand::distributions::Standard">Standard</a>: <a class="trait" href="../../../rand/distributions/trait.Distribution.html" title="trait rand::distributions::Distribution">Distribution</a>&lt;T&gt;,&nbsp;</span></code><a class='srclink' href='../../../src/rand/lib.rs.html#184-187' title='goto source code'>[src]</a></h4><div class='docblock'><p>Return a random value supporting the [<code>Standard</code>] distribution. <a href="../../../rand/trait.Rng.html#method.gen">Read more</a></p>
</div><h4 id='method.gen_range' class="method"><code id='gen_range.v'>fn <a href='../../../rand/trait.Rng.html#method.gen_range' class='fnname'>gen_range</a>&lt;T:&nbsp;<a class="trait" href="../../../rand/distributions/uniform/trait.SampleUniform.html" title="trait rand::distributions::uniform::SampleUniform">SampleUniform</a>, B1, B2&gt;(&amp;mut self, low: B1, high: B2) -&gt; T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;B1: <a class="trait" href="../../../rand/distributions/uniform/trait.SampleBorrow.html" title="trait rand::distributions::uniform::SampleBorrow">SampleBorrow</a>&lt;T&gt; + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,<br>&nbsp;&nbsp;&nbsp;&nbsp;B2: <a class="trait" href="../../../rand/distributions/uniform/trait.SampleBorrow.html" title="trait rand::distributions::uniform::SampleBorrow">SampleBorrow</a>&lt;T&gt; + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,&nbsp;</span></code><a class='srclink' href='../../../src/rand/lib.rs.html#213-219' title='goto source code'>[src]</a></h4><div class='docblock'><p>Generate a random value in the range [<code>low</code>, <code>high</code>), i.e. inclusive of <code>low</code> and exclusive of <code>high</code>. <a href="../../../rand/trait.Rng.html#method.gen_range">Read more</a></p>
</div><h4 id='method.sample' class="method"><code id='sample.v'>fn <a href='../../../rand/trait.Rng.html#method.sample' class='fnname'>sample</a>&lt;T, D:&nbsp;<a class="trait" href="../../../rand/distributions/trait.Distribution.html" title="trait rand::distributions::Distribution">Distribution</a>&lt;T&gt;&gt;(&amp;mut self, distr: D) -&gt; T</code><a class='srclink' href='../../../src/rand/lib.rs.html#235-237' title='goto source code'>[src]</a></h4><div class='docblock'><p>Sample a new value, using the given distribution. <a href="../../../rand/trait.Rng.html#method.sample">Read more</a></p>
</div><h4 id='method.sample_iter' class="method"><div class="important-traits"><div class='tooltip'><span class='tooltiptext'>Important traits for <a class="struct" href="../../../rand/distributions/struct.DistIter.html" title="struct rand::distributions::DistIter">DistIter</a>&lt;D, R, T&gt;</span></div><div class="content hidden"><h3 class="important">Important traits for <a class="struct" href="../../../rand/distributions/struct.DistIter.html" title="struct rand::distributions::DistIter">DistIter</a>&lt;D, R, T&gt;</h3><code class="content"><span class="where fmt-newline">impl&lt;D, R, T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a> for <a class="struct" href="../../../rand/distributions/struct.DistIter.html" title="struct rand::distributions::DistIter">DistIter</a>&lt;D, R, T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;D: <a class="trait" href="../../../rand/distributions/trait.Distribution.html" title="trait rand::distributions::Distribution">Distribution</a>&lt;T&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;R: <a class="trait" href="../../../rand/trait.Rng.html" title="trait rand::Rng">Rng</a>,&nbsp;</span></span><span class="where fmt-newline"> type <a href='https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item' class="type">Item</a> = T;</span></code></div></div><code id='sample_iter.v'>fn <a href='../../../rand/trait.Rng.html#method.sample_iter' class='fnname'>sample_iter</a>&lt;T, D&gt;(self, distr: D) -&gt; <a class="struct" href="../../../rand/distributions/struct.DistIter.html" title="struct rand::distributions::DistIter">DistIter</a>&lt;D, Self, T&gt; <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;D: <a class="trait" href="../../../rand/distributions/trait.Distribution.html" title="trait rand::distributions::Distribution">Distribution</a>&lt;T&gt;,<br>&nbsp;&nbsp;&nbsp;&nbsp;Self: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,&nbsp;</span></code><a class='srclink' href='../../../src/rand/lib.rs.html#272-275' title='goto source code'>[src]</a></h4><div class='docblock'><p>Create an iterator that generates values using the given distribution. <a href="../../../rand/trait.Rng.html#method.sample_iter">Read more</a></p>
</div><h4 id='method.fill' class="method"><code id='fill.v'>fn <a href='../../../rand/trait.Rng.html#method.fill' class='fnname'>fill</a>&lt;T:&nbsp;<a class="trait" href="../../../rand/trait.AsByteSliceMut.html" title="trait rand::AsByteSliceMut">AsByteSliceMut</a> + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>&gt;(&amp;mut self, dest: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>T)</code><a class='srclink' href='../../../src/rand/lib.rs.html#299-302' title='goto source code'>[src]</a></h4><div class='docblock'><p>Fill <code>dest</code> entirely with random bytes (uniform value distribution), where <code>dest</code> is any type supporting [<code>AsByteSliceMut</code>], namely slices and arrays over primitive integer types (<code>i8</code>, <code>i16</code>, <code>u32</code>, etc.). <a href="../../../rand/trait.Rng.html#method.fill">Read more</a></p>
</div><h4 id='method.try_fill' class="method"><code id='try_fill.v'>fn <a href='../../../rand/trait.Rng.html#method.try_fill' class='fnname'>try_fill</a>&lt;T:&nbsp;<a class="trait" href="../../../rand/trait.AsByteSliceMut.html" title="trait rand::AsByteSliceMut">AsByteSliceMut</a> + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>&gt;(<br>&nbsp;&nbsp;&nbsp;&nbsp;&amp;mut self, <br>&nbsp;&nbsp;&nbsp;&nbsp;dest: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut </a>T<br>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>, <a class="struct" href="../../../rand/struct.Error.html" title="struct rand::Error">Error</a>&gt;</code><a class='srclink' href='../../../src/rand/lib.rs.html#331-335' title='goto source code'>[src]</a></h4><div class='docblock'><p>Fill <code>dest</code> entirely with random bytes (uniform value distribution), where <code>dest</code> is any type supporting [<code>AsByteSliceMut</code>], namely slices and arrays over primitive integer types (<code>i8</code>, <code>i16</code>, <code>u32</code>, etc.). <a href="../../../rand/trait.Rng.html#method.try_fill">Read more</a></p>
</div><h4 id='method.gen_bool' class="method"><code id='gen_bool.v'>fn <a href='../../../rand/trait.Rng.html#method.gen_bool' class='fnname'>gen_bool</a>(&amp;mut self, p: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.f64.html">f64</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class='srclink' href='../../../src/rand/lib.rs.html#357-360' title='goto source code'>[src]</a></h4><div class='docblock'><p>Return a bool with a probability <code>p</code> of being true. <a href="../../../rand/trait.Rng.html#method.gen_bool">Read more</a></p>
</div><h4 id='method.gen_ratio' class="method"><code id='gen_ratio.v'>fn <a href='../../../rand/trait.Rng.html#method.gen_ratio' class='fnname'>gen_ratio</a>(&amp;mut self, numerator: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, denominator: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code><a class='srclink' href='../../../src/rand/lib.rs.html#386-389' title='goto source code'>[src]</a></h4><div class='docblock'><p>Return a bool with a probability of <code>numerator/denominator</code> of being true. I.e. <code>gen_ratio(2, 3)</code> has chance of 2 in 3, or about 67%, of returning true. If <code>numerator == denominator</code>, then the returned value is guaranteed to be <code>true</code>. If <code>numerator == 0</code>, then the returned value is guaranteed to be <code>false</code>. <a href="../../../rand/trait.Rng.html#method.gen_ratio">Read more</a></p>
</div></div><h3 id='impl-From%3CT%3E' class='impl'><code class='in-band'>impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; 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' 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>(t: T) -&gt; 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>
</div></div><h3 id='impl-Into%3CU%3E' class='impl'><code class='in-band'>impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;U&gt; for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt;,&nbsp;</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) -&gt; 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>
</div></div><h3 id='impl-TryFrom%3CU%3E' class='impl'><code class='in-band'>impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt; for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;T&gt;,&nbsp;</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>
</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) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, &lt;T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt;&gt;::<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>&gt;</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>
</div></div><h3 id='impl-TryInto%3CU%3E' class='impl'><code class='in-band'>impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a>&lt;U&gt; for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;,&nbsp;</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> = &lt;U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<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>
</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) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;U, &lt;U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<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>&gt;</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>
</div></div><h3 id='impl-BorrowMut%3CT%3E' class='impl'><code class='in-band'>impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a>&lt;T&gt; for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,&nbsp;</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>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;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>
</div></div><h3 id='impl-Borrow%3CT%3E' class='impl'><code class='in-band'>impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;T&gt; for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,&nbsp;</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>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;</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>
</div></div><h3 id='impl-Any' class='impl'><code class='in-band'>impl&lt;T&gt; <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>&nbsp;&nbsp;&nbsp;&nbsp;T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,&nbsp;</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>(&amp;self) -&gt; <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>
</div></div><h3 id='impl-VZip%3CV%3E' class='impl'><code class='in-band'>impl&lt;V, T&gt; <a class="trait" href="../../../ppv_lite86/types/types/trait.VZip.html" title="trait ppv_lite86::types::types::VZip">VZip</a>&lt;V&gt; for T <span class="where fmt-newline">where<br>&nbsp;&nbsp;&nbsp;&nbsp;V: <a class="trait" href="../../../ppv_lite86/types/types/trait.MultiLane.html" title="trait ppv_lite86::types::types::MultiLane">MultiLane</a>&lt;T&gt;,&nbsp;</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) -&gt; 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>&#9166;</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";</script><script src="../../../aliases.js"></script><script src="../../../main.js"></script><script defer src="../../../search-index.js"></script></body></html>