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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="A distribution using weighted sampling of discrete items"><meta name="keywords" content="rust, rustlang, rust-lang, WeightedIndex"><title>WeightedIndex in rand::distributions - 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" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled><link rel="stylesheet" type="text/css" href="../../dark.css" disabled><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script src="../../crates.js"></script><script defer src="../../main.js"></script>
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</a><h2 class="location"><a href="#">WeightedIndex</a></h2><div class="sidebar-elems"><section><div class="block"><h3 class="sidebar-title"><a href="#implementations">Methods</a></h3><ul><li><a href="#method.new">new</a></li><li><a href="#method.update_weights">update_weights</a></li></ul></div><div class="block"><h3 class="sidebar-title"><a href="#trait-implementations">Trait Implementations</a></h3><ul><li><a href="#impl-Clone">Clone</a></li><li><a href="#impl-Debug">Debug</a></li><li><a href="#impl-Distribution%3Cusize%3E">Distribution<usize></a></li><li><a href="#impl-PartialEq%3CWeightedIndex%3CX%3E%3E">PartialEq<WeightedIndex<X>></a></li><li><a href="#impl-StructuralPartialEq">StructuralPartialEq</a></li></ul></div><div class="block"><h3 class="sidebar-title"><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul><li><a href="#impl-RefUnwindSafe">RefUnwindSafe</a></li><li><a href="#impl-Send">Send</a></li><li><a href="#impl-Sync">Sync</a></li><li><a href="#impl-Unpin">Unpin</a></li><li><a href="#impl-UnwindSafe">UnwindSafe</a></li></ul></div><div class="block"><h3 class="sidebar-title"><a href="#blanket-implementations">Blanket Implementations</a></h3><ul><li><a href="#impl-Any">Any</a></li><li><a href="#impl-Borrow%3CT%3E">Borrow<T></a></li><li><a href="#impl-BorrowMut%3CT%3E">BorrowMut<T></a></li><li><a href="#impl-From%3CT%3E">From<T></a></li><li><a href="#impl-Into%3CU%3E">Into<U></a></li><li><a href="#impl-ToOwned">ToOwned</a></li><li><a href="#impl-TryFrom%3CU%3E">TryFrom<U></a></li><li><a href="#impl-TryInto%3CU%3E">TryInto<U></a></li><li><a href="#impl-VZip%3CV%3E">VZip<V></a></li></ul></div></section><h2 class="location"><a href="index.html">In rand::distributions</a></h2><div id="sidebar-vars" data-name="WeightedIndex" data-ty="struct" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><main><div class="width-limiter"><div class="sub-container"><a class="sub-logo-container" href="../../rand/index.html">
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<h1 class="fqn"><span class="in-band">Struct <a href="../index.html">rand</a>::<wbr><a href="index.html">distributions</a>::<wbr><a class="struct" href="#">WeightedIndex</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></span></h1><span class="out-of-band"><a class="srclink" href="../../src/rand/distributions/weighted_index.rs.html#81-85">source</a> · <a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span></div><div class="docblock item-decl"><pre class="rust struct"><code>pub struct WeightedIndex<X: <a class="trait" href="uniform/trait.SampleUniform.html" title="trait rand::distributions::uniform::SampleUniform">SampleUniform</a> + <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/cmp/trait.PartialOrd.html" title="trait core::cmp::PartialOrd">PartialOrd</a>> { /* private fields */ }</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A distribution using weighted sampling of discrete items</p>
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<p>Sampling a <code>WeightedIndex</code> distribution returns the index of a randomly
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selected element from the iterator used when the <code>WeightedIndex</code> was
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created. The chance of a given element being picked is proportional to the
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value of the element. The weights can use any type <code>X</code> for which an
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implementation of <a href="struct.Uniform.html"><code>Uniform<X></code></a> exists.</p>
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<h2 id="performance"><a href="#performance">Performance</a></h2>
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<p>Time complexity of sampling from <code>WeightedIndex</code> is <code>O(log N)</code> where
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<code>N</code> is the number of weights. As an alternative,
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<a href="https://docs.rs/rand_distr/*/rand_distr/weighted_alias/index.html"><code>rand_distr::weighted_alias</code></a>
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supports <code>O(1)</code> sampling, but with much higher initialisation cost.</p>
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<p>A <code>WeightedIndex<X></code> contains a <code>Vec<X></code> and a <a href="struct.Uniform.html"><code>Uniform<X></code></a> and so its
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size is the sum of the size of those objects, possibly plus some alignment.</p>
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<p>Creating a <code>WeightedIndex<X></code> will allocate enough space to hold <code>N - 1</code>
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weights of type <code>X</code>, where <code>N</code> is the number of weights. However, since
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<code>Vec</code> doesn’t guarantee a particular growth strategy, additional memory
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might be allocated but not used. Since the <code>WeightedIndex</code> object also
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contains, this might cause additional allocations, though for primitive
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types, <a href="struct.Uniform.html"><code>Uniform<X></code></a> doesn’t allocate any memory.</p>
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<p>Sampling from <code>WeightedIndex</code> will result in a single call to
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<code>Uniform<X>::sample</code> (method of the <a href="trait.Distribution.html" title="Distribution"><code>Distribution</code></a> trait), which typically
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will request a single value from the underlying <a href="../trait.RngCore.html"><code>RngCore</code></a>, though the
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exact number depends on the implementation of <code>Uniform<X>::sample</code>.</p>
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<h2 id="example"><a href="#example">Example</a></h2>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use</span> <span class="ident">rand::prelude</span>::<span class="kw-2">*</span>;
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<span class="kw">use</span> <span class="ident">rand::distributions::WeightedIndex</span>;
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<span class="kw">let</span> <span class="ident">choices</span> <span class="op">=</span> [<span class="string">'a'</span>, <span class="string">'b'</span>, <span class="string">'c'</span>];
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<span class="kw">let</span> <span class="ident">weights</span> <span class="op">=</span> [<span class="number">2</span>, <span class="number">1</span>, <span class="number">1</span>];
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<span class="kw">let</span> <span class="ident">dist</span> <span class="op">=</span> <span class="ident">WeightedIndex::new</span>(<span class="kw-2">&</span><span class="ident">weights</span>).<span class="ident">unwrap</span>();
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<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">rng</span> <span class="op">=</span> <span class="ident">thread_rng</span>();
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<span class="kw">for</span> <span class="kw">_</span> <span class="kw">in</span> <span class="number">0</span>..<span class="number">100</span> {
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<span class="comment">// 50% chance to print 'a', 25% chance to print 'b', 25% chance to print 'c'</span>
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<span class="macro">println!</span>(<span class="string">"{}"</span>, <span class="ident">choices</span>[<span class="ident">dist</span>.<span class="ident">sample</span>(<span class="kw-2">&mut</span> <span class="ident">rng</span>)]);
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}
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<span class="kw">let</span> <span class="ident">items</span> <span class="op">=</span> [(<span class="string">'a'</span>, <span class="number">0</span>), (<span class="string">'b'</span>, <span class="number">3</span>), (<span class="string">'c'</span>, <span class="number">7</span>)];
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<span class="kw">let</span> <span class="ident">dist2</span> <span class="op">=</span> <span class="ident">WeightedIndex::new</span>(<span class="ident">items</span>.<span class="ident">iter</span>().<span class="ident">map</span>(<span class="op">|</span><span class="ident">item</span><span class="op">|</span> <span class="ident">item</span>.<span class="number">1</span>)).<span class="ident">unwrap</span>();
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<span class="kw">for</span> <span class="kw">_</span> <span class="kw">in</span> <span class="number">0</span>..<span class="number">100</span> {
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<span class="comment">// 0% chance to print 'a', 30% chance to print 'b', 70% chance to print 'c'</span>
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<span class="macro">println!</span>(<span class="string">"{}"</span>, <span class="ident">items</span>[<span class="ident">dist2</span>.<span class="ident">sample</span>(<span class="kw-2">&mut</span> <span class="ident">rng</span>)].<span class="number">0</span>);
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}</code></pre></div>
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</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" class="impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/rand/distributions/weighted_index.rs.html#87-221">source</a></span><a href="#impl" class="anchor"></a><h3 class="code-header in-band">impl<X: <a class="trait" href="uniform/trait.SampleUniform.html" title="trait rand::distributions::uniform::SampleUniform">SampleUniform</a> + <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/cmp/trait.PartialOrd.html" title="trait core::cmp::PartialOrd">PartialOrd</a>> <a class="struct" href="weighted/struct.WeightedIndex.html" title="struct rand::distributions::weighted::WeightedIndex">WeightedIndex</a><X></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.new" class="method has-srclink"><span class="rightside"><a class="srclink" href="../../src/rand/distributions/weighted_index.rs.html#96-131">source</a></span><a href="#method.new" class="anchor"></a><h4 class="code-header">pub fn <a href="#method.new" class="fnname">new</a><I>(weights: I) -> <a class="enum" href="https://doc.rust-lang.org/1.62.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="struct" href="weighted/struct.WeightedIndex.html" title="struct rand::distributions::weighted::WeightedIndex">WeightedIndex</a><X>, <a class="enum" href="weighted/enum.WeightedError.html" title="enum rand::distributions::weighted::WeightedError">WeightedError</a>> <span class="where fmt-newline">where<br> I: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>,<br> I::<a class="associatedtype" href="https://doc.rust-lang.org/1.62.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>: <a class="trait" href="uniform/trait.SampleBorrow.html" title="trait rand::distributions::uniform::SampleBorrow">SampleBorrow</a><X>,<br> X: for<'a> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/ops/arith/trait.AddAssign.html" title="trait core::ops::arith::AddAssign">AddAssign</a><<a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.reference.html">&'a </a>X> + <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> + <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/default/trait.Default.html" title="trait core::default::Default">Default</a>, </span></h4></section></summary><div class="docblock"><p>Creates a new a <code>WeightedIndex</code> <a href="trait.Distribution.html" title="Distribution"><code>Distribution</code></a> using the values
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in <code>weights</code>. The weights can use any type <code>X</code> for which an
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implementation of <a href="struct.Uniform.html"><code>Uniform<X></code></a> exists.</p>
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<p>Returns an error if the iterator is empty, if any weight is <code>< 0</code>, or
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if its total value is 0.</p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.update_weights" class="method has-srclink"><span class="rightside"><a class="srclink" href="../../src/rand/distributions/weighted_index.rs.html#142-220">source</a></span><a href="#method.update_weights" class="anchor"></a><h4 class="code-header">pub fn <a href="#method.update_weights" class="fnname">update_weights</a>(<br> &mut self, <br> new_weights: <a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.slice.html">&[</a><a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.tuple.html">(</a><a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.reference.html">&</a>X<a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.tuple.html">)</a><a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.slice.html">]</a><br>) -> <a class="enum" href="https://doc.rust-lang.org/1.62.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.unit.html">()</a>, <a class="enum" href="weighted/enum.WeightedError.html" title="enum rand::distributions::weighted::WeightedError">WeightedError</a>> <span class="where fmt-newline">where<br> X: for<'a> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/ops/arith/trait.AddAssign.html" title="trait core::ops::arith::AddAssign">AddAssign</a><<a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.reference.html">&'a </a>X> + for<'a> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/ops/arith/trait.SubAssign.html" title="trait core::ops::arith::SubAssign">SubAssign</a><<a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.reference.html">&'a </a>X> + <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> + <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/default/trait.Default.html" title="trait core::default::Default">Default</a>, </span></h4></section></summary><div class="docblock"><p>Update a subset of weights, without changing the number of weights.</p>
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<p><code>new_weights</code> must be sorted by the index.</p>
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<p>Using this method instead of <code>new</code> might be more efficient if only a small number of
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weights is modified. No allocations are performed, unless the weight type <code>X</code> uses
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allocation internally.</p>
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<p>In case of error, <code>self</code> is not modified.</p>
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</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" class="impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/rand/distributions/weighted_index.rs.html#78">source</a></span><a href="#impl-Clone" class="anchor"></a><h3 class="code-header in-band">impl<X: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> + <a class="trait" href="uniform/trait.SampleUniform.html" title="trait rand::distributions::uniform::SampleUniform">SampleUniform</a> + <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/cmp/trait.PartialOrd.html" title="trait core::cmp::PartialOrd">PartialOrd</a>> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="weighted/struct.WeightedIndex.html" title="struct rand::distributions::weighted::WeightedIndex">WeightedIndex</a><X> <span class="where fmt-newline">where<br> X::<a class="associatedtype" href="uniform/trait.SampleUniform.html#associatedtype.Sampler" title="type rand::distributions::uniform::SampleUniform::Sampler">Sampler</a>: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, </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"><span class="rightside"><a class="srclink" href="../../src/rand/distributions/weighted_index.rs.html#78">source</a></span><a href="#method.clone" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.62.1/core/clone/trait.Clone.html#tymethod.clone" class="fnname">clone</a>(&self) -> <a class="struct" href="weighted/struct.WeightedIndex.html" title="struct rand::distributions::weighted::WeightedIndex">WeightedIndex</a><X></h4></section></summary><div class='docblock'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/1.62.1/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone_from" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/core/clone.rs.html#133-135">source</a></span><a href="#method.clone_from" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.62.1/core/clone/trait.Clone.html#method.clone_from" class="fnname">clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.reference.html">&</a>Self)</h4></section></summary><div class='docblock'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/1.62.1/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
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</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Debug" class="impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/rand/distributions/weighted_index.rs.html#78">source</a></span><a href="#impl-Debug" class="anchor"></a><h3 class="code-header in-band">impl<X: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> + <a class="trait" href="uniform/trait.SampleUniform.html" title="trait rand::distributions::uniform::SampleUniform">SampleUniform</a> + <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/cmp/trait.PartialOrd.html" title="trait core::cmp::PartialOrd">PartialOrd</a>> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="weighted/struct.WeightedIndex.html" title="struct rand::distributions::weighted::WeightedIndex">WeightedIndex</a><X> <span class="where fmt-newline">where<br> X::<a class="associatedtype" href="uniform/trait.SampleUniform.html#associatedtype.Sampler" title="type rand::distributions::uniform::SampleUniform::Sampler">Sampler</a>: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</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"><span class="rightside"><a class="srclink" href="../../src/rand/distributions/weighted_index.rs.html#78">source</a></span><a href="#method.fmt" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.62.1/core/fmt/trait.Debug.html#tymethod.fmt" class="fnname">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/1.62.1/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/1.62.1/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></h4></section></summary><div class='docblock'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/1.62.1/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
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</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-Distribution%3Cusize%3E" class="impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/rand/distributions/weighted_index.rs.html#223-240">source</a></span><a href="#impl-Distribution%3Cusize%3E" class="anchor"></a><h3 class="code-header in-band">impl<X> <a class="trait" href="trait.Distribution.html" title="trait rand::distributions::Distribution">Distribution</a><<a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.usize.html">usize</a>> for <a class="struct" href="weighted/struct.WeightedIndex.html" title="struct rand::distributions::weighted::WeightedIndex">WeightedIndex</a><X> <span class="where fmt-newline">where<br> X: <a class="trait" href="uniform/trait.SampleUniform.html" title="trait rand::distributions::uniform::SampleUniform">SampleUniform</a> + <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/cmp/trait.PartialOrd.html" title="trait core::cmp::PartialOrd">PartialOrd</a>, </span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.sample" class="method trait-impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/rand/distributions/weighted_index.rs.html#226-239">source</a></span><a href="#method.sample" class="anchor"></a><h4 class="code-header">fn <a href="trait.Distribution.html#tymethod.sample" class="fnname">sample</a><R: <a class="trait" href="../trait.Rng.html" title="trait rand::Rng">Rng</a> + ?<a class="trait" href="https://doc.rust-lang.org/1.62.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>>(&self, rng: <a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.reference.html">&mut </a>R) -> <a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.usize.html">usize</a></h4></section></summary><div class='docblock'><p>Generate a random value of <code>T</code>, using <code>rng</code> as the source of randomness.</p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.sample_iter" class="method trait-impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/rand/distributions/distribution.rs.html#73-83">source</a></span><a href="#method.sample_iter" class="anchor"></a><h4 class="code-header">fn <a href="trait.Distribution.html#method.sample_iter" class="fnname">sample_iter</a><R>(self, rng: R) -> <a class="struct" href="struct.DistIter.html" title="struct rand::distributions::DistIter">DistIter</a><Self, R, T><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<span class="notable-traits-tooltiptext"><span class="docblock"><span class="notable">Notable traits for <a class="struct" href="struct.DistIter.html" title="struct rand::distributions::DistIter">DistIter</a><D, R, T></span><code class="content"><span class="where fmt-newline">impl<D, R, T> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a> for <a class="struct" href="struct.DistIter.html" title="struct rand::distributions::DistIter">DistIter</a><D, R, T> <span class="where fmt-newline">where<br> D: <a class="trait" href="trait.Distribution.html" title="trait rand::distributions::Distribution">Distribution</a><T>,<br> R: <a class="trait" href="../trait.Rng.html" title="trait rand::Rng">Rng</a>, </span></span><span class="where fmt-newline"> type <a href="https://doc.rust-lang.org/1.62.1/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" class="associatedtype">Item</a> = T;</span></code></span></span></span></span> <span class="where fmt-newline">where<br> R: <a class="trait" href="../trait.Rng.html" title="trait rand::Rng">Rng</a>,<br> Self: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></h4></section></summary><div class='docblock'><p>Create an iterator that generates random values of <code>T</code>, using <code>rng</code> as
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the source of randomness. <a href="trait.Distribution.html#method.sample_iter">Read more</a></p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.map" class="method trait-impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/rand/distributions/distribution.rs.html#102-112">source</a></span><a href="#method.map" class="anchor"></a><h4 class="code-header">fn <a href="trait.Distribution.html#method.map" class="fnname">map</a><F, S>(self, func: F) -> <a class="struct" href="struct.DistMap.html" title="struct rand::distributions::DistMap">DistMap</a><Self, F, T, S> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/ops/function/trait.Fn.html" title="trait core::ops::function::Fn">Fn</a>(T) -> S,<br> Self: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></h4></section></summary><div class='docblock'><p>Create a distribution of values of ‘S’ by mapping the output of <code>Self</code>
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through the closure <code>F</code> <a href="trait.Distribution.html#method.map">Read more</a></p>
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</div></details></div></details><details class="rustdoc-toggle implementors-toggle" open><summary><section id="impl-PartialEq%3CWeightedIndex%3CX%3E%3E" class="impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/rand/distributions/weighted_index.rs.html#78">source</a></span><a href="#impl-PartialEq%3CWeightedIndex%3CX%3E%3E" class="anchor"></a><h3 class="code-header in-band">impl<X: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a> + <a class="trait" href="uniform/trait.SampleUniform.html" title="trait rand::distributions::uniform::SampleUniform">SampleUniform</a> + <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/cmp/trait.PartialOrd.html" title="trait core::cmp::PartialOrd">PartialOrd</a>> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a><<a class="struct" href="weighted/struct.WeightedIndex.html" title="struct rand::distributions::weighted::WeightedIndex">WeightedIndex</a><X>> for <a class="struct" href="weighted/struct.WeightedIndex.html" title="struct rand::distributions::weighted::WeightedIndex">WeightedIndex</a><X> <span class="where fmt-newline">where<br> X::<a class="associatedtype" href="uniform/trait.SampleUniform.html#associatedtype.Sampler" title="type rand::distributions::uniform::SampleUniform::Sampler">Sampler</a>: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a>, </span></h3></section></summary><div class="impl-items"><details class="rustdoc-toggle method-toggle" open><summary><section id="method.eq" class="method trait-impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/rand/distributions/weighted_index.rs.html#78">source</a></span><a href="#method.eq" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.62.1/core/cmp/trait.PartialEq.html#tymethod.eq" class="fnname">eq</a>(&self, other: &<a class="struct" href="weighted/struct.WeightedIndex.html" title="struct rand::distributions::weighted::WeightedIndex">WeightedIndex</a><X>) -> <a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'><p>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used
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by <code>==</code>. <a href="https://doc.rust-lang.org/1.62.1/core/cmp/trait.PartialEq.html#tymethod.eq">Read more</a></p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.ne" class="method trait-impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/rand/distributions/weighted_index.rs.html#78">source</a></span><a href="#method.ne" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.62.1/core/cmp/trait.PartialEq.html#method.ne" class="fnname">ne</a>(&self, other: &<a class="struct" href="weighted/struct.WeightedIndex.html" title="struct rand::distributions::weighted::WeightedIndex">WeightedIndex</a><X>) -> <a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'><p>This method tests for <code>!=</code>.</p>
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</div></details></div></details><section id="impl-StructuralPartialEq" class="impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/rand/distributions/weighted_index.rs.html#78">source</a></span><a href="#impl-StructuralPartialEq" class="anchor"></a><h3 class="code-header in-band">impl<X: <a class="trait" href="uniform/trait.SampleUniform.html" title="trait rand::distributions::uniform::SampleUniform">SampleUniform</a> + <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/cmp/trait.PartialOrd.html" title="trait core::cmp::PartialOrd">PartialOrd</a>> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/marker/trait.StructuralPartialEq.html" title="trait core::marker::StructuralPartialEq">StructuralPartialEq</a> for <a class="struct" href="weighted/struct.WeightedIndex.html" title="struct rand::distributions::weighted::WeightedIndex">WeightedIndex</a><X></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" class="impl has-srclink"><a href="#impl-RefUnwindSafe" class="anchor"></a><h3 class="code-header in-band">impl<X> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="weighted/struct.WeightedIndex.html" title="struct rand::distributions::weighted::WeightedIndex">WeightedIndex</a><X> <span class="where fmt-newline">where<br> X: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,<br> <X as <a class="trait" href="uniform/trait.SampleUniform.html" title="trait rand::distributions::uniform::SampleUniform">SampleUniform</a>>::<a class="associatedtype" href="uniform/trait.SampleUniform.html#associatedtype.Sampler" title="type rand::distributions::uniform::SampleUniform::Sampler">Sampler</a>: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>, </span></h3></section><section id="impl-Send" class="impl has-srclink"><a href="#impl-Send" class="anchor"></a><h3 class="code-header in-band">impl<X> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="weighted/struct.WeightedIndex.html" title="struct rand::distributions::weighted::WeightedIndex">WeightedIndex</a><X> <span class="where fmt-newline">where<br> X: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,<br> <X as <a class="trait" href="uniform/trait.SampleUniform.html" title="trait rand::distributions::uniform::SampleUniform">SampleUniform</a>>::<a class="associatedtype" href="uniform/trait.SampleUniform.html#associatedtype.Sampler" title="type rand::distributions::uniform::SampleUniform::Sampler">Sampler</a>: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>, </span></h3></section><section id="impl-Sync" class="impl has-srclink"><a href="#impl-Sync" class="anchor"></a><h3 class="code-header in-band">impl<X> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="weighted/struct.WeightedIndex.html" title="struct rand::distributions::weighted::WeightedIndex">WeightedIndex</a><X> <span class="where fmt-newline">where<br> X: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,<br> <X as <a class="trait" href="uniform/trait.SampleUniform.html" title="trait rand::distributions::uniform::SampleUniform">SampleUniform</a>>::<a class="associatedtype" href="uniform/trait.SampleUniform.html#associatedtype.Sampler" title="type rand::distributions::uniform::SampleUniform::Sampler">Sampler</a>: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>, </span></h3></section><section id="impl-Unpin" class="impl has-srclink"><a href="#impl-Unpin" class="anchor"></a><h3 class="code-header in-band">impl<X> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="weighted/struct.WeightedIndex.html" title="struct rand::distributions::weighted::WeightedIndex">WeightedIndex</a><X> <span class="where fmt-newline">where<br> X: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,<br> <X as <a class="trait" href="uniform/trait.SampleUniform.html" title="trait rand::distributions::uniform::SampleUniform">SampleUniform</a>>::<a class="associatedtype" href="uniform/trait.SampleUniform.html#associatedtype.Sampler" title="type rand::distributions::uniform::SampleUniform::Sampler">Sampler</a>: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>, </span></h3></section><section id="impl-UnwindSafe" class="impl has-srclink"><a href="#impl-UnwindSafe" class="anchor"></a><h3 class="code-header in-band">impl<X> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="weighted/struct.WeightedIndex.html" title="struct rand::distributions::weighted::WeightedIndex">WeightedIndex</a><X> <span class="where fmt-newline">where<br> X: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,<br> <X as <a class="trait" href="uniform/trait.SampleUniform.html" title="trait rand::distributions::uniform::SampleUniform">SampleUniform</a>>::<a class="associatedtype" href="uniform/trait.SampleUniform.html#associatedtype.Sampler" title="type rand::distributions::uniform::SampleUniform::Sampler">Sampler</a>: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>, </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" class="impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/core/any.rs.html#132-136">source</a></span><a href="#impl-Any" class="anchor"></a><h3 class="code-header in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T <span class="where fmt-newline">where<br> T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/1.62.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </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"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/core/any.rs.html#133">source</a></span><a href="#method.type_id" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.62.1/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/1.62.1/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'><p>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/1.62.1/core/any/trait.Any.html#tymethod.type_id">Read more</a></p>
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</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E" class="impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/core/borrow.rs.html#209-214">source</a></span><a href="#impl-Borrow%3CT%3E" class="anchor"></a><h3 class="code-header in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/1.62.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </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="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/core/borrow.rs.html#211">source</a></span><a href="#method.borrow" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.62.1/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&self) -> <a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.reference.html">&</a>T</h4></section></summary><div class='docblock'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.62.1/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
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</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E" class="impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/core/borrow.rs.html#218-222">source</a></span><a href="#impl-BorrowMut%3CT%3E" class="anchor"></a><h3 class="code-header in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/1.62.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </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="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/core/borrow.rs.html#219">source</a></span><a href="#method.borrow_mut" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.62.1/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&mut self) -> <a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.reference.html">&mut </a>T</h4></section></summary><div class='docblock'><p>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.62.1/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
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</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-From%3CT%3E" class="impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/core/convert/mod.rs.html#557-562">source</a></span><a href="#impl-From%3CT%3E" class="anchor"></a><h3 class="code-header in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/convert/trait.From.html" title="trait core::convert::From">From</a><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="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/core/convert/mod.rs.html#559">source</a></span><a href="#method.from" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.62.1/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -> T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
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</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E" class="impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/core/convert/mod.rs.html#541-552">source</a></span><a href="#impl-Into%3CU%3E" class="anchor"></a><h3 class="code-header in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/convert/trait.From.html" title="trait core::convert::From">From</a><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="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/core/convert/mod.rs.html#549">source</a></span><a href="#method.into" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.62.1/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -> U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
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<p>That is, this conversion is whatever the implementation of
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<code><a href="https://doc.rust-lang.org/1.62.1/core/convert/trait.From.html" title="From">From</a><T> for U</code> chooses to do.</p>
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</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-ToOwned" class="impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/alloc/borrow.rs.html#84-96">source</a></span><a href="#impl-ToOwned" class="anchor"></a><h3 class="code-header in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/1.62.1/alloc/borrow/trait.ToOwned.html" title="trait alloc::borrow::ToOwned">ToOwned</a> for T <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, </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 href="https://doc.rust-lang.org/1.62.1/alloc/borrow/trait.ToOwned.html#associatedtype.Owned" class="associatedtype">Owned</a> = T</h4></section></summary><div class='docblock'><p>The resulting type after obtaining ownership.</p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.to_owned" class="method trait-impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/alloc/borrow.rs.html#89">source</a></span><a href="#method.to_owned" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.62.1/alloc/borrow/trait.ToOwned.html#tymethod.to_owned" class="fnname">to_owned</a>(&self) -> T</h4></section></summary><div class='docblock'><p>Creates owned data from borrowed data, usually by cloning. <a href="https://doc.rust-lang.org/1.62.1/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.clone_into" class="method trait-impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/alloc/borrow.rs.html#93">source</a></span><a href="#method.clone_into" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.62.1/alloc/borrow/trait.ToOwned.html#method.clone_into" class="fnname">clone_into</a>(&self, target: <a class="primitive" href="https://doc.rust-lang.org/1.62.1/std/primitive.reference.html">&mut </a>T)</h4></section></summary><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>toowned_clone_into</code>)</div></span><div class='docblock'><p>Uses borrowed data to replace owned data, usually by cloning. <a href="https://doc.rust-lang.org/1.62.1/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></p>
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</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E" class="impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/core/convert/mod.rs.html#598-607">source</a></span><a href="#impl-TryFrom%3CU%3E" class="anchor"></a><h3 class="code-header in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><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 href="https://doc.rust-lang.org/1.62.1/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/1.62.1/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'><p>The type returned in the event of a conversion error.</p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/core/convert/mod.rs.html#604">source</a></span><a href="#method.try_from" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.62.1/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/1.62.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.62.1/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'><p>Performs the conversion.</p>
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</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E" class="impl has-srclink"><span class="rightside"><a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/core/convert/mod.rs.html#583-592">source</a></span><a href="#impl-TryInto%3CU%3E" class="anchor"></a><h3 class="code-header in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><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 href="https://doc.rust-lang.org/1.62.1/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.62.1/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'><p>The type returned in the event of a conversion error.</p>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl has-srclink"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/1.62.1/src/core/convert/mod.rs.html#589">source</a></span><a href="#method.try_into" class="anchor"></a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.62.1/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/1.62.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/1.62.1/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.62.1/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></h4></section></summary><div class='docblock'><p>Performs the conversion.</p>
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</div></details></div></details><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-VZip%3CV%3E" class="impl has-srclink"><span class="rightside"><a class="srclink" href="../../src/ppv_lite86/types.rs.html#221-229">source</a></span><a href="#impl-VZip%3CV%3E" class="anchor"></a><h3 class="code-header in-band">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"><span class="rightside"><a class="srclink" href="../../src/ppv_lite86/types.rs.html#226">source</a></span><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="1.62.1 (e092d0b6b 2022-07-16)" ></div>
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