<!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 `LinkedList` struct in crate `std`."><meta name="keywords" content="rust, rustlang, rust-lang, LinkedList"><title>std::collections::LinkedList - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize1.35.0.css"><link rel="stylesheet" type="text/css" href="../../rustdoc1.35.0.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../dark1.35.0.css"><link rel="stylesheet" type="text/css" href="../../light1.35.0.css" id="themeStyle"><script src="../../storage1.35.0.js"></script><noscript><link rel="stylesheet" href="../../noscript1.35.0.css"></noscript><link rel="shortcut icon" href="../../favicon1.35.0.ico"><style type="text/css">#crate-search{background-image:url("../../down-arrow1.35.0.svg");}</style></head><body class="rustdoc struct"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../../std/index.html'><img src='../../rust-logo1.35.0.png' alt='logo' width='100'></a><p class='location'>Struct LinkedList</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.append">append</a><a href="#method.back">back</a><a href="#method.back_mut">back_mut</a><a href="#method.clear">clear</a><a href="#method.contains">contains</a><a href="#method.drain_filter">drain_filter</a><a href="#method.front">front</a><a href="#method.front_mut">front_mut</a><a href="#method.is_empty">is_empty</a><a href="#method.iter">iter</a><a href="#method.iter_mut">iter_mut</a><a href="#method.len">len</a><a href="#method.new">new</a><a href="#method.pop_back">pop_back</a><a href="#method.pop_front">pop_front</a><a href="#method.push_back">push_back</a><a href="#method.push_front">push_front</a><a href="#method.split_off">split_off</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Clone">Clone</a><a href="#impl-Debug">Debug</a><a href="#impl-Default">Default</a><a href="#impl-Drop">Drop</a><a href="#impl-Eq">Eq</a><a href="#impl-Extend%3C%26%27a%20T%3E">Extend<&'a T></a><a href="#impl-Extend%3CT%3E">Extend<T></a><a href="#impl-FromIterator%3CT%3E">FromIterator<T></a><a href="#impl-Hash">Hash</a><a href="#impl-IntoIterator">IntoIterator</a><a href="#impl-Ord">Ord</a><a href="#impl-PartialEq%3CLinkedList%3CT%3E%3E">PartialEq<LinkedList<T>></a><a href="#impl-PartialOrd%3CLinkedList%3CT%3E%3E">PartialOrd<LinkedList<T>></a><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">Borrow</a><a href="#impl-BorrowMut">BorrowMut</a><a href="#impl-From">From</a><a href="#impl-Into">Into</a><a href="#impl-IntoIterator">IntoIterator</a><a href="#impl-ToOwned">ToOwned</a><a href="#impl-TryFrom">TryFrom</a><a href="#impl-TryInto">TryInto</a></div></div><p class='location'><a href='../index.html'>std</a>::<wbr><a href='index.html'>collections</a></p><script>window.sidebarCurrent = {name: 'LinkedList', 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="../../brush1.35.0.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../theme1.35.0.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="../../wheel1.35.0.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span class='since' title='Stable since Rust version 1.0.0'>1.0.0</span><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#35-40' title='goto source code'>[src]</a></span><span class='in-band'>Struct <a href='../index.html'>std</a>::<wbr><a href='index.html'>collections</a>::<wbr><a class="struct" href=''>LinkedList</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class='rust struct'>pub struct LinkedList<T> { /* fields omitted */ }</pre></div><div class='docblock'><p>A doubly-linked list with owned nodes.</p>
<p>The <code>LinkedList</code> allows pushing and popping elements at either end
in constant time.</p>
<p>Almost always it is better to use <code>Vec</code> or <code>VecDeque</code> instead of
<code>LinkedList</code>. In general, array-based containers are faster,
more memory efficient and make better use of CPU cache.</p>
</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<T> <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T></code><a href='#impl' class='anchor'></a><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#245-782' 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>() -> <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#257-264' title='goto source code'>[src]</a></h4><div class='docblock'><p>Creates an empty <code>LinkedList</code>.</p>
<h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="ident">list</span>: <span class="ident">LinkedList</span><span class="op"><</span><span class="ident">u32</span><span class="op">></span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20list%3A%20LinkedList%3Cu32%3E%20%3D%20LinkedList%3A%3Anew()%3B%0A%7D">Run</a></pre></div>
</div><h4 id='method.append' class="method"><code id='append.v'>pub fn <a href='#method.append' class='fnname'>append</a>(&mut self, other: &mut <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T>)</code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#296-311' title='goto source code'>[src]</a></h4><div class='docblock'><p>Moves all elements from <code>other</code> to the end of the list.</p>
<p>This reuses all the nodes from <code>other</code> and moves them into <code>self</code>. After
this operation, <code>other</code> becomes empty.</p>
<p>This operation should compute in O(1) time and O(1) memory.</p>
<h1 id="examples-1" class="section-header"><a href="#examples-1">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">list1</span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="ident">list1</span>.<span class="ident">push_back</span>(<span class="string">'a'</span>);
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">list2</span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="ident">list2</span>.<span class="ident">push_back</span>(<span class="string">'b'</span>);
<span class="ident">list2</span>.<span class="ident">push_back</span>(<span class="string">'c'</span>);
<span class="ident">list1</span>.<span class="ident">append</span>(<span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">list2</span>);
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">iter</span> <span class="op">=</span> <span class="ident">list1</span>.<span class="ident">iter</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="string">'a'</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="string">'b'</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="string">'c'</span>));
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>().<span class="ident">is_none</span>());
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">list2</span>.<span class="ident">is_empty</span>());<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20mut%20list1%20%3D%20LinkedList%3A%3Anew()%3B%0Alist1.push_back('a')%3B%0A%0Alet%20mut%20list2%20%3D%20LinkedList%3A%3Anew()%3B%0Alist2.push_back('b')%3B%0Alist2.push_back('c')%3B%0A%0Alist1.append(%26mut%20list2)%3B%0A%0Alet%20mut%20iter%20%3D%20list1.iter()%3B%0Aassert_eq!(iter.next()%2C%20Some(%26'a'))%3B%0Aassert_eq!(iter.next()%2C%20Some(%26'b'))%3B%0Aassert_eq!(iter.next()%2C%20Some(%26'c'))%3B%0Aassert!(iter.next().is_none())%3B%0A%0Aassert!(list2.is_empty())%3B%0A%7D">Run</a></pre></div>
</div><h4 id='method.iter' class="method"><div class="important-traits"><div class='tooltip'>ⓘ<span class='tooltiptext'>Important traits for <a class="struct" href="../../std/collections/linked_list/struct.Iter.html" title="struct std::collections::linked_list::Iter">Iter</a><'a, T></span></div><div class="content hidden"><h3 class="important">Important traits for <a class="struct" href="../../std/collections/linked_list/struct.Iter.html" title="struct std::collections::linked_list::Iter">Iter</a><'a, T></h3><code class="content"><span class="where fmt-newline">impl<'a, T> <a class="trait" href="../../std/iter/trait.Iterator.html" title="trait std::iter::Iterator">Iterator</a> for <a class="struct" href="../../std/collections/linked_list/struct.Iter.html" title="struct std::collections::linked_list::Iter">Iter</a><'a, T></span><span class="where fmt-newline"> type <a href='../../std/iter/trait.Iterator.html#associatedtype.Item' class="type">Item</a> = <a class="primitive" href="../primitive.reference.html">&'a </a>T;</span></code></div></div><code id='iter.v'>pub fn <a href='#method.iter' class='fnname'>iter</a>(&self) -> <a class="struct" href="../../std/collections/linked_list/struct.Iter.html" title="struct std::collections::linked_list::Iter">Iter</a><T></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#334-341' title='goto source code'>[src]</a></h4><div class='docblock'><p>Provides a forward iterator.</p>
<h1 id="examples-2" class="section-header"><a href="#examples-2">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">list</span>: <span class="ident">LinkedList</span><span class="op"><</span><span class="ident">u32</span><span class="op">></span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="ident">list</span>.<span class="ident">push_back</span>(<span class="number">0</span>);
<span class="ident">list</span>.<span class="ident">push_back</span>(<span class="number">1</span>);
<span class="ident">list</span>.<span class="ident">push_back</span>(<span class="number">2</span>);
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">iter</span> <span class="op">=</span> <span class="ident">list</span>.<span class="ident">iter</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="number">0</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="number">1</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="number">2</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">None</span>);<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20mut%20list%3A%20LinkedList%3Cu32%3E%20%3D%20LinkedList%3A%3Anew()%3B%0A%0Alist.push_back(0)%3B%0Alist.push_back(1)%3B%0Alist.push_back(2)%3B%0A%0Alet%20mut%20iter%20%3D%20list.iter()%3B%0Aassert_eq!(iter.next()%2C%20Some(%260))%3B%0Aassert_eq!(iter.next()%2C%20Some(%261))%3B%0Aassert_eq!(iter.next()%2C%20Some(%262))%3B%0Aassert_eq!(iter.next()%2C%20None)%3B%0A%7D">Run</a></pre></div>
</div><h4 id='method.iter_mut' class="method"><div class="important-traits"><div class='tooltip'>ⓘ<span class='tooltiptext'>Important traits for <a class="struct" href="../../std/collections/linked_list/struct.IterMut.html" title="struct std::collections::linked_list::IterMut">IterMut</a><'a, T></span></div><div class="content hidden"><h3 class="important">Important traits for <a class="struct" href="../../std/collections/linked_list/struct.IterMut.html" title="struct std::collections::linked_list::IterMut">IterMut</a><'a, T></h3><code class="content"><span class="where fmt-newline">impl<'a, T> <a class="trait" href="../../std/iter/trait.Iterator.html" title="trait std::iter::Iterator">Iterator</a> for <a class="struct" href="../../std/collections/linked_list/struct.IterMut.html" title="struct std::collections::linked_list::IterMut">IterMut</a><'a, T></span><span class="where fmt-newline"> type <a href='../../std/iter/trait.Iterator.html#associatedtype.Item' class="type">Item</a> = <a class="primitive" href="../primitive.reference.html">&'a mut </a>T;</span></code></div></div><code id='iter_mut.v'>pub fn <a href='#method.iter_mut' class='fnname'>iter_mut</a>(&mut self) -> <a class="struct" href="../../std/collections/linked_list/struct.IterMut.html" title="struct std::collections::linked_list::IterMut">IterMut</a><T></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#368-375' title='goto source code'>[src]</a></h4><div class='docblock'><p>Provides a forward iterator with mutable references.</p>
<h1 id="examples-3" class="section-header"><a href="#examples-3">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">list</span>: <span class="ident">LinkedList</span><span class="op"><</span><span class="ident">u32</span><span class="op">></span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="ident">list</span>.<span class="ident">push_back</span>(<span class="number">0</span>);
<span class="ident">list</span>.<span class="ident">push_back</span>(<span class="number">1</span>);
<span class="ident">list</span>.<span class="ident">push_back</span>(<span class="number">2</span>);
<span class="kw">for</span> <span class="ident">element</span> <span class="kw">in</span> <span class="ident">list</span>.<span class="ident">iter_mut</span>() {
<span class="kw-2">*</span><span class="ident">element</span> <span class="op">+=</span> <span class="number">10</span>;
}
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">iter</span> <span class="op">=</span> <span class="ident">list</span>.<span class="ident">iter</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="number">10</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="number">11</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="number">12</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">iter</span>.<span class="ident">next</span>(), <span class="prelude-val">None</span>);<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20mut%20list%3A%20LinkedList%3Cu32%3E%20%3D%20LinkedList%3A%3Anew()%3B%0A%0Alist.push_back(0)%3B%0Alist.push_back(1)%3B%0Alist.push_back(2)%3B%0A%0Afor%20element%20in%20list.iter_mut()%20%7B%0A%20%20%20%20*element%20%2B%3D%2010%3B%0A%7D%0A%0Alet%20mut%20iter%20%3D%20list.iter()%3B%0Aassert_eq!(iter.next()%2C%20Some(%2610))%3B%0Aassert_eq!(iter.next()%2C%20Some(%2611))%3B%0Aassert_eq!(iter.next()%2C%20Some(%2612))%3B%0Aassert_eq!(iter.next()%2C%20None)%3B%0A%7D">Run</a></pre></div>
</div><h4 id='method.is_empty' class="method"><code id='is_empty.v'>pub fn <a href='#method.is_empty' class='fnname'>is_empty</a>(&self) -> <a class="primitive" href="../primitive.bool.html">bool</a></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#394-396' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns <code>true</code> if the <code>LinkedList</code> is empty.</p>
<p>This operation should compute in O(1) time.</p>
<h1 id="examples-4" class="section-header"><a href="#examples-4">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">dl</span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">is_empty</span>());
<span class="ident">dl</span>.<span class="ident">push_front</span>(<span class="string">"foo"</span>);
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">dl</span>.<span class="ident">is_empty</span>());<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20mut%20dl%20%3D%20LinkedList%3A%3Anew()%3B%0Aassert!(dl.is_empty())%3B%0A%0Adl.push_front(%22foo%22)%3B%0Aassert!(!dl.is_empty())%3B%0A%7D">Run</a></pre></div>
</div><h4 id='method.len' class="method"><code id='len.v'>pub fn <a href='#method.len' class='fnname'>len</a>(&self) -> <a class="primitive" href="../primitive.usize.html">usize</a></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#420-422' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns the length of the <code>LinkedList</code>.</p>
<p>This operation should compute in O(1) time.</p>
<h1 id="examples-5" class="section-header"><a href="#examples-5">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">dl</span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="ident">dl</span>.<span class="ident">push_front</span>(<span class="number">2</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">len</span>(), <span class="number">1</span>);
<span class="ident">dl</span>.<span class="ident">push_front</span>(<span class="number">1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">len</span>(), <span class="number">2</span>);
<span class="ident">dl</span>.<span class="ident">push_back</span>(<span class="number">3</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">len</span>(), <span class="number">3</span>);<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20mut%20dl%20%3D%20LinkedList%3A%3Anew()%3B%0A%0Adl.push_front(2)%3B%0Aassert_eq!(dl.len()%2C%201)%3B%0A%0Adl.push_front(1)%3B%0Aassert_eq!(dl.len()%2C%202)%3B%0A%0Adl.push_back(3)%3B%0Aassert_eq!(dl.len()%2C%203)%3B%0A%7D">Run</a></pre></div>
</div><h4 id='method.clear' class="method"><code id='clear.v'>pub fn <a href='#method.clear' class='fnname'>clear</a>(&mut self)</code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#446-448' title='goto source code'>[src]</a></h4><div class='docblock'><p>Removes all elements from the <code>LinkedList</code>.</p>
<p>This operation should compute in O(n) time.</p>
<h1 id="examples-6" class="section-header"><a href="#examples-6">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">dl</span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="ident">dl</span>.<span class="ident">push_front</span>(<span class="number">2</span>);
<span class="ident">dl</span>.<span class="ident">push_front</span>(<span class="number">1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">len</span>(), <span class="number">2</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">front</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="number">1</span>));
<span class="ident">dl</span>.<span class="ident">clear</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">len</span>(), <span class="number">0</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">front</span>(), <span class="prelude-val">None</span>);<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20mut%20dl%20%3D%20LinkedList%3A%3Anew()%3B%0A%0Adl.push_front(2)%3B%0Adl.push_front(1)%3B%0Aassert_eq!(dl.len()%2C%202)%3B%0Aassert_eq!(dl.front()%2C%20Some(%261))%3B%0A%0Adl.clear()%3B%0Aassert_eq!(dl.len()%2C%200)%3B%0Aassert_eq!(dl.front()%2C%20None)%3B%0A%7D">Run</a></pre></div>
</div><h4 id='method.contains' class="method"><code id='contains.v'>pub fn <a href='#method.contains' class='fnname'>contains</a>(&self, x: <a class="primitive" href="../primitive.reference.html">&</a>T) -> <a class="primitive" href="../primitive.bool.html">bool</a> <span class="where fmt-newline">where<br> T: <a class="trait" href="../../std/cmp/trait.PartialEq.html" title="trait std::cmp::PartialEq">PartialEq</a><T>, </span></code><div class='since' title='Stable since Rust version 1.12.0'>1.12.0</div><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#468-472' title='goto source code'>[src]</a></h4><div class='docblock'><p>Returns <code>true</code> if the <code>LinkedList</code> contains an element equal to the
given value.</p>
<h1 id="examples-7" class="section-header"><a href="#examples-7">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">list</span>: <span class="ident">LinkedList</span><span class="op"><</span><span class="ident">u32</span><span class="op">></span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="ident">list</span>.<span class="ident">push_back</span>(<span class="number">0</span>);
<span class="ident">list</span>.<span class="ident">push_back</span>(<span class="number">1</span>);
<span class="ident">list</span>.<span class="ident">push_back</span>(<span class="number">2</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">list</span>.<span class="ident">contains</span>(<span class="kw-2">&</span><span class="number">0</span>), <span class="bool-val">true</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">list</span>.<span class="ident">contains</span>(<span class="kw-2">&</span><span class="number">10</span>), <span class="bool-val">false</span>);<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20mut%20list%3A%20LinkedList%3Cu32%3E%20%3D%20LinkedList%3A%3Anew()%3B%0A%0Alist.push_back(0)%3B%0Alist.push_back(1)%3B%0Alist.push_back(2)%3B%0A%0Aassert_eq!(list.contains(%260)%2C%20true)%3B%0Aassert_eq!(list.contains(%2610)%2C%20false)%3B%0A%7D">Run</a></pre></div>
</div><h4 id='method.front' class="method"><code id='front.v'>pub fn <a href='#method.front' class='fnname'>front</a>(&self) -> <a class="enum" href="../../std/option/enum.Option.html" title="enum std::option::Option">Option</a><<a class="primitive" href="../primitive.reference.html">&</a>T></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#490-494' title='goto source code'>[src]</a></h4><div class='docblock'><p>Provides a reference to the front element, or <code>None</code> if the list is
empty.</p>
<h1 id="examples-8" class="section-header"><a href="#examples-8">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">dl</span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">front</span>(), <span class="prelude-val">None</span>);
<span class="ident">dl</span>.<span class="ident">push_front</span>(<span class="number">1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">front</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="number">1</span>));<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20mut%20dl%20%3D%20LinkedList%3A%3Anew()%3B%0Aassert_eq!(dl.front()%2C%20None)%3B%0A%0Adl.push_front(1)%3B%0Aassert_eq!(dl.front()%2C%20Some(%261))%3B%0A%7D">Run</a></pre></div>
</div><h4 id='method.front_mut' class="method"><code id='front_mut.v'>pub fn <a href='#method.front_mut' class='fnname'>front_mut</a>(&mut self) -> <a class="enum" href="../../std/option/enum.Option.html" title="enum std::option::Option">Option</a><<a class="primitive" href="../primitive.reference.html">&mut </a>T></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#518-522' title='goto source code'>[src]</a></h4><div class='docblock'><p>Provides a mutable reference to the front element, or <code>None</code> if the list
is empty.</p>
<h1 id="examples-9" class="section-header"><a href="#examples-9">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">dl</span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">front</span>(), <span class="prelude-val">None</span>);
<span class="ident">dl</span>.<span class="ident">push_front</span>(<span class="number">1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">front</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="number">1</span>));
<span class="kw">match</span> <span class="ident">dl</span>.<span class="ident">front_mut</span>() {
<span class="prelude-val">None</span> <span class="op">=></span> {},
<span class="prelude-val">Some</span>(<span class="ident">x</span>) <span class="op">=></span> <span class="kw-2">*</span><span class="ident">x</span> <span class="op">=</span> <span class="number">5</span>,
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">front</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="number">5</span>));<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20mut%20dl%20%3D%20LinkedList%3A%3Anew()%3B%0Aassert_eq!(dl.front()%2C%20None)%3B%0A%0Adl.push_front(1)%3B%0Aassert_eq!(dl.front()%2C%20Some(%261))%3B%0A%0Amatch%20dl.front_mut()%20%7B%0A%20%20%20%20None%20%3D%3E%20%7B%7D%2C%0A%20%20%20%20Some(x)%20%3D%3E%20*x%20%3D%205%2C%0A%7D%0Aassert_eq!(dl.front()%2C%20Some(%265))%3B%0A%7D">Run</a></pre></div>
</div><h4 id='method.back' class="method"><code id='back.v'>pub fn <a href='#method.back' class='fnname'>back</a>(&self) -> <a class="enum" href="../../std/option/enum.Option.html" title="enum std::option::Option">Option</a><<a class="primitive" href="../primitive.reference.html">&</a>T></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#540-544' title='goto source code'>[src]</a></h4><div class='docblock'><p>Provides a reference to the back element, or <code>None</code> if the list is
empty.</p>
<h1 id="examples-10" class="section-header"><a href="#examples-10">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">dl</span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">back</span>(), <span class="prelude-val">None</span>);
<span class="ident">dl</span>.<span class="ident">push_back</span>(<span class="number">1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">back</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="number">1</span>));<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20mut%20dl%20%3D%20LinkedList%3A%3Anew()%3B%0Aassert_eq!(dl.back()%2C%20None)%3B%0A%0Adl.push_back(1)%3B%0Aassert_eq!(dl.back()%2C%20Some(%261))%3B%0A%7D">Run</a></pre></div>
</div><h4 id='method.back_mut' class="method"><code id='back_mut.v'>pub fn <a href='#method.back_mut' class='fnname'>back_mut</a>(&mut self) -> <a class="enum" href="../../std/option/enum.Option.html" title="enum std::option::Option">Option</a><<a class="primitive" href="../primitive.reference.html">&mut </a>T></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#568-572' title='goto source code'>[src]</a></h4><div class='docblock'><p>Provides a mutable reference to the back element, or <code>None</code> if the list
is empty.</p>
<h1 id="examples-11" class="section-header"><a href="#examples-11">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">dl</span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">back</span>(), <span class="prelude-val">None</span>);
<span class="ident">dl</span>.<span class="ident">push_back</span>(<span class="number">1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">back</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="number">1</span>));
<span class="kw">match</span> <span class="ident">dl</span>.<span class="ident">back_mut</span>() {
<span class="prelude-val">None</span> <span class="op">=></span> {},
<span class="prelude-val">Some</span>(<span class="ident">x</span>) <span class="op">=></span> <span class="kw-2">*</span><span class="ident">x</span> <span class="op">=</span> <span class="number">5</span>,
}
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">back</span>(), <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="number">5</span>));<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20mut%20dl%20%3D%20LinkedList%3A%3Anew()%3B%0Aassert_eq!(dl.back()%2C%20None)%3B%0A%0Adl.push_back(1)%3B%0Aassert_eq!(dl.back()%2C%20Some(%261))%3B%0A%0Amatch%20dl.back_mut()%20%7B%0A%20%20%20%20None%20%3D%3E%20%7B%7D%2C%0A%20%20%20%20Some(x)%20%3D%3E%20*x%20%3D%205%2C%0A%7D%0Aassert_eq!(dl.back()%2C%20Some(%265))%3B%0A%7D">Run</a></pre></div>
</div><h4 id='method.push_front' class="method"><code id='push_front.v'>pub fn <a href='#method.push_front' class='fnname'>push_front</a>(&mut self, elt: T)</code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#592-594' title='goto source code'>[src]</a></h4><div class='docblock'><p>Adds an element first in the list.</p>
<p>This operation should compute in O(1) time.</p>
<h1 id="examples-12" class="section-header"><a href="#examples-12">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">dl</span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="ident">dl</span>.<span class="ident">push_front</span>(<span class="number">2</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">front</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&</span><span class="number">2</span>);
<span class="ident">dl</span>.<span class="ident">push_front</span>(<span class="number">1</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">dl</span>.<span class="ident">front</span>().<span class="ident">unwrap</span>(), <span class="kw-2">&</span><span class="number">1</span>);<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20mut%20dl%20%3D%20LinkedList%3A%3Anew()%3B%0A%0Adl.push_front(2)%3B%0Aassert_eq!(dl.front().unwrap()%2C%20%262)%3B%0A%0Adl.push_front(1)%3B%0Aassert_eq!(dl.front().unwrap()%2C%20%261)%3B%0A%7D">Run</a></pre></div>
</div><h4 id='method.pop_front' class="method"><code id='pop_front.v'>pub fn <a href='#method.pop_front' class='fnname'>pop_front</a>(&mut self) -> <a class="enum" href="../../std/option/enum.Option.html" title="enum std::option::Option">Option</a><T></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#616-618' title='goto source code'>[src]</a></h4><div class='docblock'><p>Removes the first element and returns it, or <code>None</code> if the list is
empty.</p>
<p>This operation should compute in O(1) time.</p>
<h1 id="examples-13" class="section-header"><a href="#examples-13">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">pop_front</span>(), <span class="prelude-val">None</span>);
<span class="ident">d</span>.<span class="ident">push_front</span>(<span class="number">1</span>);
<span class="ident">d</span>.<span class="ident">push_front</span>(<span class="number">3</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">pop_front</span>(), <span class="prelude-val">Some</span>(<span class="number">3</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">pop_front</span>(), <span class="prelude-val">Some</span>(<span class="number">1</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">pop_front</span>(), <span class="prelude-val">None</span>);<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20mut%20d%20%3D%20LinkedList%3A%3Anew()%3B%0Aassert_eq!(d.pop_front()%2C%20None)%3B%0A%0Ad.push_front(1)%3B%0Ad.push_front(3)%3B%0Aassert_eq!(d.pop_front()%2C%20Some(3))%3B%0Aassert_eq!(d.pop_front()%2C%20Some(1))%3B%0Aassert_eq!(d.pop_front()%2C%20None)%3B%0A%7D">Run</a></pre></div>
</div><h4 id='method.push_back' class="method"><code id='push_back.v'>pub fn <a href='#method.push_back' class='fnname'>push_back</a>(&mut self, elt: T)</code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#635-637' title='goto source code'>[src]</a></h4><div class='docblock'><p>Appends an element to the back of a list.</p>
<p>This operation should compute in O(1) time.</p>
<h1 id="examples-14" class="section-header"><a href="#examples-14">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="ident">d</span>.<span class="ident">push_back</span>(<span class="number">1</span>);
<span class="ident">d</span>.<span class="ident">push_back</span>(<span class="number">3</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="number">3</span>, <span class="kw-2">*</span><span class="ident">d</span>.<span class="ident">back</span>().<span class="ident">unwrap</span>());<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20mut%20d%20%3D%20LinkedList%3A%3Anew()%3B%0Ad.push_back(1)%3B%0Ad.push_back(3)%3B%0Aassert_eq!(3%2C%20*d.back().unwrap())%3B%0A%7D">Run</a></pre></div>
</div><h4 id='method.pop_back' class="method"><code id='pop_back.v'>pub fn <a href='#method.pop_back' class='fnname'>pop_back</a>(&mut self) -> <a class="enum" href="../../std/option/enum.Option.html" title="enum std::option::Option">Option</a><T></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#656-658' title='goto source code'>[src]</a></h4><div class='docblock'><p>Removes the last element from a list and returns it, or <code>None</code> if
it is empty.</p>
<p>This operation should compute in O(1) time.</p>
<h1 id="examples-15" class="section-header"><a href="#examples-15">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">pop_back</span>(), <span class="prelude-val">None</span>);
<span class="ident">d</span>.<span class="ident">push_back</span>(<span class="number">1</span>);
<span class="ident">d</span>.<span class="ident">push_back</span>(<span class="number">3</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">d</span>.<span class="ident">pop_back</span>(), <span class="prelude-val">Some</span>(<span class="number">3</span>));<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20mut%20d%20%3D%20LinkedList%3A%3Anew()%3B%0Aassert_eq!(d.pop_back()%2C%20None)%3B%0Ad.push_back(1)%3B%0Ad.push_back(3)%3B%0Aassert_eq!(d.pop_back()%2C%20Some(3))%3B%0A%7D">Run</a></pre></div>
</div><h4 id='method.split_off' class="method"><code id='split_off.v'>pub fn <a href='#method.split_off' class='fnname'>split_off</a>(&mut self, at: <a class="primitive" href="../primitive.usize.html">usize</a>) -> <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#686-738' title='goto source code'>[src]</a></h4><div class='docblock'><p>Splits the list into two at the given index. Returns everything after the given index,
including the index.</p>
<p>This operation should compute in O(n) time.</p>
<h1 id="panics" class="section-header"><a href="#panics">Panics</a></h1>
<p>Panics if <code>at > len</code>.</p>
<h1 id="examples-16" class="section-header"><a href="#examples-16">Examples</a></h1>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">d</span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="ident">d</span>.<span class="ident">push_front</span>(<span class="number">1</span>);
<span class="ident">d</span>.<span class="ident">push_front</span>(<span class="number">2</span>);
<span class="ident">d</span>.<span class="ident">push_front</span>(<span class="number">3</span>);
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">splitted</span> <span class="op">=</span> <span class="ident">d</span>.<span class="ident">split_off</span>(<span class="number">2</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">splitted</span>.<span class="ident">pop_front</span>(), <span class="prelude-val">Some</span>(<span class="number">1</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">splitted</span>.<span class="ident">pop_front</span>(), <span class="prelude-val">None</span>);<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20mut%20d%20%3D%20LinkedList%3A%3Anew()%3B%0A%0Ad.push_front(1)%3B%0Ad.push_front(2)%3B%0Ad.push_front(3)%3B%0A%0Alet%20mut%20splitted%20%3D%20d.split_off(2)%3B%0A%0Aassert_eq!(splitted.pop_front()%2C%20Some(1))%3B%0Aassert_eq!(splitted.pop_front()%2C%20None)%3B%0A%7D">Run</a></pre></div>
</div><h4 id='method.drain_filter' class="method"><div class="important-traits"><div class='tooltip'>ⓘ<span class='tooltiptext'>Important traits for <a class="struct" href="../../std/collections/linked_list/struct.DrainFilter.html" title="struct std::collections::linked_list::DrainFilter">DrainFilter</a><'_, T, F></span></div><div class="content hidden"><h3 class="important">Important traits for <a class="struct" href="../../std/collections/linked_list/struct.DrainFilter.html" title="struct std::collections::linked_list::DrainFilter">DrainFilter</a><'_, T, F></h3><code class="content"><span class="where fmt-newline">impl<'_, T, F> <a class="trait" href="../../std/iter/trait.Iterator.html" title="trait std::iter::Iterator">Iterator</a> for <a class="struct" href="../../std/collections/linked_list/struct.DrainFilter.html" title="struct std::collections::linked_list::DrainFilter">DrainFilter</a><'_, T, F> <span class="where fmt-newline">where<br> F: <a class="trait" href="../../std/ops/trait.FnMut.html" title="trait std::ops::FnMut">FnMut</a>(<a class="primitive" href="../primitive.reference.html">&mut </a>T) -> <a class="primitive" href="../primitive.bool.html">bool</a>, </span></span><span class="where fmt-newline"> type <a href='../../std/iter/trait.Iterator.html#associatedtype.Item' class="type">Item</a> = T;</span></code></div></div><code id='drain_filter.v'>pub fn <a href='#method.drain_filter' class='fnname'>drain_filter</a><F>(&mut self, filter: F) -> <a class="struct" href="../../std/collections/linked_list/struct.DrainFilter.html" title="struct std::collections::linked_list::DrainFilter">DrainFilter</a><T, F> <span class="where fmt-newline">where<br> F: <a class="trait" href="../../std/ops/trait.FnMut.html" title="trait std::ops::FnMut">FnMut</a>(<a class="primitive" href="../primitive.reference.html">&mut </a>T) -> <a class="primitive" href="../primitive.bool.html">bool</a>, </span></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#767-781' title='goto source code'>[src]</a></h4><div class='stability'><div class='stab unstable'><details><summary><span class='emoji'>🔬</span> This is a nightly-only experimental API. (<code>drain_filter</code> <a href="https://github.com/rust-lang/rust/issues/43244">#43244</a>)</summary><p>recently added</p>
</details></div></div><div class='docblock'><p>Creates an iterator which uses a closure to determine if an element should be removed.</p>
<p>If the closure returns true, then the element is removed and yielded.
If the closure returns false, the element will remain in the list and will not be yielded
by the iterator.</p>
<p>Note that <code>drain_filter</code> lets you mutate every element in the filter closure, regardless of
whether you choose to keep or remove it.</p>
<h1 id="examples-17" class="section-header"><a href="#examples-17">Examples</a></h1>
<p>Splitting a list into evens and odds, reusing the original list:</p>
<div class="example-wrap"><pre class="rust rust-example-rendered">
<span class="attribute">#![<span class="ident">feature</span>(<span class="ident">drain_filter</span>)]</span>
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">collections</span>::<span class="ident">LinkedList</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">numbers</span>: <span class="ident">LinkedList</span><span class="op"><</span><span class="ident">u32</span><span class="op">></span> <span class="op">=</span> <span class="ident">LinkedList</span>::<span class="ident">new</span>();
<span class="ident">numbers</span>.<span class="ident">extend</span>(<span class="kw-2">&</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">8</span>, <span class="number">9</span>, <span class="number">11</span>, <span class="number">13</span>, <span class="number">14</span>, <span class="number">15</span>]);
<span class="kw">let</span> <span class="ident">evens</span> <span class="op">=</span> <span class="ident">numbers</span>.<span class="ident">drain_filter</span>(<span class="op">|</span><span class="ident">x</span><span class="op">|</span> <span class="kw-2">*</span><span class="ident">x</span> <span class="op">%</span> <span class="number">2</span> <span class="op">==</span> <span class="number">0</span>).<span class="ident">collect</span>::<span class="op"><</span><span class="ident">LinkedList</span><span class="op"><</span><span class="kw">_</span><span class="op">>></span>();
<span class="kw">let</span> <span class="ident">odds</span> <span class="op">=</span> <span class="ident">numbers</span>;
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">evens</span>.<span class="ident">into_iter</span>().<span class="ident">collect</span>::<span class="op"><</span><span class="ident">Vec</span><span class="op"><</span><span class="kw">_</span><span class="op">>></span>(), <span class="macro">vec</span><span class="macro">!</span>[<span class="number">2</span>, <span class="number">4</span>, <span class="number">6</span>, <span class="number">8</span>, <span class="number">14</span>]);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">odds</span>.<span class="ident">into_iter</span>().<span class="ident">collect</span>::<span class="op"><</span><span class="ident">Vec</span><span class="op"><</span><span class="kw">_</span><span class="op">>></span>(), <span class="macro">vec</span><span class="macro">!</span>[<span class="number">1</span>, <span class="number">3</span>, <span class="number">5</span>, <span class="number">9</span>, <span class="number">11</span>, <span class="number">13</span>, <span class="number">15</span>]);<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0A%23!%5Bfeature(drain_filter)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Acollections%3A%3ALinkedList%3B%0A%0Alet%20mut%20numbers%3A%20LinkedList%3Cu32%3E%20%3D%20LinkedList%3A%3Anew()%3B%0Anumbers.extend(%26%5B1%2C%202%2C%203%2C%204%2C%205%2C%206%2C%208%2C%209%2C%2011%2C%2013%2C%2014%2C%2015%5D)%3B%0A%0Alet%20evens%20%3D%20numbers.drain_filter(%7Cx%7C%20*x%20%25%202%20%3D%3D%200).collect%3A%3A%3CLinkedList%3C_%3E%3E()%3B%0Alet%20odds%20%3D%20numbers%3B%0A%0Aassert_eq!(evens.into_iter().collect%3A%3A%3CVec%3C_%3E%3E()%2C%20vec!%5B2%2C%204%2C%206%2C%208%2C%2014%5D)%3B%0Aassert_eq!(odds.into_iter().collect%3A%3A%3CVec%3C_%3E%3E()%2C%20vec!%5B1%2C%203%2C%205%2C%209%2C%2011%2C%2013%2C%2015%5D)%3B%0A%7D&version=nightly">Run</a></pre></div>
</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-Clone' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/clone/trait.Clone.html" title="trait std::clone::Clone">Clone</a> for <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="../../std/clone/trait.Clone.html" title="trait std::clone::Clone">Clone</a>, </span></code><a href='#impl-Clone' class='anchor'></a><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1157-1161' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.clone' class="method hidden"><code id='clone.v'>fn <a href='../../std/clone/trait.Clone.html#tymethod.clone' class='fnname'>clone</a>(&self) -> <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1158-1160' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Returns a copy of the value. <a href="../../std/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
</div><h4 id='method.clone_from' class="method"><code id='clone_from.v'>fn <a href='../../std/clone/trait.Clone.html#method.clone_from' class='fnname'>clone_from</a>(&mut self, source: <a class="primitive" href="../primitive.reference.html">&</a>Self)</code><a class='srclink' href='../../src/core/clone.rs.html#131-133' title='goto source code'>[src]</a></h4><div class='docblock'><p>Performs copy-assignment from <code>source</code>. <a href="../../std/clone/trait.Clone.html#method.clone_from">Read more</a></p>
</div></div><h3 id='impl-Extend%3C%26%27a%20T%3E' class='impl'><code class='in-band'>impl<'a, T> <a class="trait" href="../../std/iter/trait.Extend.html" title="trait std::iter::Extend">Extend</a><<a class="primitive" href="../primitive.reference.html">&'a </a>T> for <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T> <span class="where fmt-newline">where<br> T: 'a + <a class="trait" href="../../std/marker/trait.Copy.html" title="trait std::marker::Copy">Copy</a>, </span></code><a href='#impl-Extend%3C%26%27a%20T%3E' class='anchor'></a><div class='since' title='Stable since Rust version 1.2.0'>1.2.0</div><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1121-1125' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.extend' class="method hidden"><code id='extend.v'>fn <a href='../../std/iter/trait.Extend.html#tymethod.extend' class='fnname'>extend</a><I>(&mut self, iter: I) <span class="where fmt-newline">where<br> I: <a class="trait" href="../../std/iter/trait.IntoIterator.html" title="trait std::iter::IntoIterator">IntoIterator</a><Item = <a class="primitive" href="../primitive.reference.html">&'a </a>T>, </span></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1122-1124' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Extends a collection with the contents of an iterator. <a href="../../std/iter/trait.Extend.html#tymethod.extend">Read more</a></p>
</div></div><h3 id='impl-Extend%3CT%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/iter/trait.Extend.html" title="trait std::iter::Extend">Extend</a><T> for <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T></code><a href='#impl-Extend%3CT%3E' class='anchor'></a><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1102-1106' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.extend-1' class="method hidden"><code id='extend.v-1'>fn <a href='../../std/iter/trait.Extend.html#tymethod.extend' class='fnname'>extend</a><I>(&mut self, iter: I) <span class="where fmt-newline">where<br> I: <a class="trait" href="../../std/iter/trait.IntoIterator.html" title="trait std::iter::IntoIterator">IntoIterator</a><Item = T>, </span></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1103-1105' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Extends a collection with the contents of an iterator. <a href="../../std/iter/trait.Extend.html#tymethod.extend">Read more</a></p>
</div></div><h3 id='impl-Debug' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/fmt/trait.Debug.html" title="trait std::fmt::Debug">Debug</a> for <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="../../std/fmt/trait.Debug.html" title="trait std::fmt::Debug">Debug</a>, </span></code><a href='#impl-Debug' class='anchor'></a><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1164-1168' 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='../../std/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&self, f: &mut <a class="struct" href="../../std/fmt/struct.Formatter.html" title="struct std::fmt::Formatter">Formatter</a>) -> <a class="enum" href="../../std/result/enum.Result.html" title="enum std::result::Result">Result</a><<a class="primitive" href="../primitive.unit.html">()</a>, <a class="struct" href="../../std/fmt/struct.Error.html" title="struct std::fmt::Error">Error</a>></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1165-1167' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Formats the value using the given formatter. <a href="../../std/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
</div></div><h3 id='impl-Eq' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/cmp/trait.Eq.html" title="trait std::cmp::Eq">Eq</a> for <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="../../std/cmp/trait.Eq.html" title="trait std::cmp::Eq">Eq</a>, </span></code><a href='#impl-Eq' class='anchor'></a><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1139' title='goto source code'>[src]</a></h3><div class='impl-items'></div><h3 id='impl-PartialOrd%3CLinkedList%3CT%3E%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/cmp/trait.PartialOrd.html" title="trait std::cmp::PartialOrd">PartialOrd</a><<a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T>> for <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="../../std/cmp/trait.PartialOrd.html" title="trait std::cmp::PartialOrd">PartialOrd</a><T>, </span></code><a href='#impl-PartialOrd%3CLinkedList%3CT%3E%3E' class='anchor'></a><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1142-1146' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.partial_cmp' class="method hidden"><code id='partial_cmp.v'>fn <a href='../../std/cmp/trait.PartialOrd.html#tymethod.partial_cmp' class='fnname'>partial_cmp</a>(&self, other: &<a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T>) -> <a class="enum" href="../../std/option/enum.Option.html" title="enum std::option::Option">Option</a><<a class="enum" href="../../std/cmp/enum.Ordering.html" title="enum std::cmp::Ordering">Ordering</a>></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1143-1145' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>This method returns an ordering between <code>self</code> and <code>other</code> values if one exists. <a href="../../std/cmp/trait.PartialOrd.html#tymethod.partial_cmp">Read more</a></p>
</div><h4 id='method.lt' class="method"><code id='lt.v'><div class="docblock attributes">#[must_use]
</div>fn <a href='../../std/cmp/trait.PartialOrd.html#method.lt' class='fnname'>lt</a>(&self, other: <a class="primitive" href="../primitive.reference.html">&</a>Rhs) -> <a class="primitive" href="../primitive.bool.html">bool</a></code><a class='srclink' href='../../src/core/cmp.rs.html#772-777' title='goto source code'>[src]</a></h4><div class='docblock'><p>This method tests less than (for <code>self</code> and <code>other</code>) and is used by the <code><</code> operator. <a href="../../std/cmp/trait.PartialOrd.html#method.lt">Read more</a></p>
</div><h4 id='method.le' class="method"><code id='le.v'><div class="docblock attributes">#[must_use]
</div>fn <a href='../../std/cmp/trait.PartialOrd.html#method.le' class='fnname'>le</a>(&self, other: <a class="primitive" href="../primitive.reference.html">&</a>Rhs) -> <a class="primitive" href="../primitive.bool.html">bool</a></code><a class='srclink' href='../../src/core/cmp.rs.html#794-799' title='goto source code'>[src]</a></h4><div class='docblock'><p>This method tests less than or equal to (for <code>self</code> and <code>other</code>) and is used by the <code><=</code> operator. <a href="../../std/cmp/trait.PartialOrd.html#method.le">Read more</a></p>
</div><h4 id='method.gt' class="method"><code id='gt.v'><div class="docblock attributes">#[must_use]
</div>fn <a href='../../std/cmp/trait.PartialOrd.html#method.gt' class='fnname'>gt</a>(&self, other: <a class="primitive" href="../primitive.reference.html">&</a>Rhs) -> <a class="primitive" href="../primitive.bool.html">bool</a></code><a class='srclink' href='../../src/core/cmp.rs.html#815-820' title='goto source code'>[src]</a></h4><div class='docblock'><p>This method tests greater than (for <code>self</code> and <code>other</code>) and is used by the <code>></code> operator. <a href="../../std/cmp/trait.PartialOrd.html#method.gt">Read more</a></p>
</div><h4 id='method.ge' class="method"><code id='ge.v'><div class="docblock attributes">#[must_use]
</div>fn <a href='../../std/cmp/trait.PartialOrd.html#method.ge' class='fnname'>ge</a>(&self, other: <a class="primitive" href="../primitive.reference.html">&</a>Rhs) -> <a class="primitive" href="../primitive.bool.html">bool</a></code><a class='srclink' href='../../src/core/cmp.rs.html#837-842' title='goto source code'>[src]</a></h4><div class='docblock'><p>This method tests greater than or equal to (for <code>self</code> and <code>other</code>) and is used by the <code>>=</code> operator. <a href="../../std/cmp/trait.PartialOrd.html#method.ge">Read more</a></p>
</div></div><h3 id='impl-IntoIterator' class='impl'><code class='in-band'>impl<'a, T> <a class="trait" href="../../std/iter/trait.IntoIterator.html" title="trait std::iter::IntoIterator">IntoIterator</a> for &'a mut <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T></code><a href='#impl-IntoIterator' class='anchor'></a><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1092-1099' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Item' class="type"><code id='Item.t'>type <a href='../../std/iter/trait.IntoIterator.html#associatedtype.Item' class="type">Item</a> = <a class="primitive" href="../primitive.reference.html">&'a mut </a>T</code></h4><div class='docblock'><p>The type of the elements being iterated over.</p>
</div><h4 id='associatedtype.IntoIter' class="type"><code id='IntoIter.t'>type <a href='../../std/iter/trait.IntoIterator.html#associatedtype.IntoIter' class="type">IntoIter</a> = <a class="struct" href="../../std/collections/linked_list/struct.IterMut.html" title="struct std::collections::linked_list::IterMut">IterMut</a><'a, T></code></h4><div class='docblock'><p>Which kind of iterator are we turning this into?</p>
</div><h4 id='method.into_iter' class="method hidden"><div class="important-traits"><div class='tooltip'>ⓘ<span class='tooltiptext'>Important traits for <a class="struct" href="../../std/collections/linked_list/struct.IterMut.html" title="struct std::collections::linked_list::IterMut">IterMut</a><'a, T></span></div><div class="content hidden"><h3 class="important">Important traits for <a class="struct" href="../../std/collections/linked_list/struct.IterMut.html" title="struct std::collections::linked_list::IterMut">IterMut</a><'a, T></h3><code class="content"><span class="where fmt-newline">impl<'a, T> <a class="trait" href="../../std/iter/trait.Iterator.html" title="trait std::iter::Iterator">Iterator</a> for <a class="struct" href="../../std/collections/linked_list/struct.IterMut.html" title="struct std::collections::linked_list::IterMut">IterMut</a><'a, T></span><span class="where fmt-newline"> type <a href='../../std/iter/trait.Iterator.html#associatedtype.Item' class="type">Item</a> = <a class="primitive" href="../primitive.reference.html">&'a mut </a>T;</span></code></div></div><code id='into_iter.v'>fn <a href='../../std/iter/trait.IntoIterator.html#tymethod.into_iter' class='fnname'>into_iter</a>(self) -> <a class="struct" href="../../std/collections/linked_list/struct.IterMut.html" title="struct std::collections::linked_list::IterMut">IterMut</a><'a, T></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1096-1098' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates an iterator from a value. <a href="../../std/iter/trait.IntoIterator.html#tymethod.into_iter">Read more</a></p>
</div></div><h3 id='impl-IntoIterator-1' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/iter/trait.IntoIterator.html" title="trait std::iter::IntoIterator">IntoIterator</a> for <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T></code><a href='#impl-IntoIterator-1' class='anchor'></a><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1070-1079' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Item-1' class="type"><code id='Item.t-1'>type <a href='../../std/iter/trait.IntoIterator.html#associatedtype.Item' class="type">Item</a> = T</code></h4><div class='docblock'><p>The type of the elements being iterated over.</p>
</div><h4 id='associatedtype.IntoIter-1' class="type"><code id='IntoIter.t-1'>type <a href='../../std/iter/trait.IntoIterator.html#associatedtype.IntoIter' class="type">IntoIter</a> = <a class="struct" href="../../std/collections/linked_list/struct.IntoIter.html" title="struct std::collections::linked_list::IntoIter">IntoIter</a><T></code></h4><div class='docblock'><p>Which kind of iterator are we turning this into?</p>
</div><h4 id='method.into_iter-1' class="method"><div class="important-traits"><div class='tooltip'>ⓘ<span class='tooltiptext'>Important traits for <a class="struct" href="../../std/collections/linked_list/struct.IntoIter.html" title="struct std::collections::linked_list::IntoIter">IntoIter</a><T></span></div><div class="content hidden"><h3 class="important">Important traits for <a class="struct" href="../../std/collections/linked_list/struct.IntoIter.html" title="struct std::collections::linked_list::IntoIter">IntoIter</a><T></h3><code class="content"><span class="where fmt-newline">impl<T> <a class="trait" href="../../std/iter/trait.Iterator.html" title="trait std::iter::Iterator">Iterator</a> for <a class="struct" href="../../std/collections/linked_list/struct.IntoIter.html" title="struct std::collections::linked_list::IntoIter">IntoIter</a><T></span><span class="where fmt-newline"> type <a href='../../std/iter/trait.Iterator.html#associatedtype.Item' class="type">Item</a> = T;</span></code></div></div><code id='into_iter.v-1'>fn <a href='../../std/iter/trait.IntoIterator.html#tymethod.into_iter' class='fnname'>into_iter</a>(self) -> <a class="struct" href="../../std/collections/linked_list/struct.IntoIter.html" title="struct std::collections::linked_list::IntoIter">IntoIter</a><T></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1076-1078' title='goto source code'>[src]</a></h4><div class='docblock'><p>Consumes the list into an iterator yielding elements by value.</p>
</div></div><h3 id='impl-IntoIterator-2' class='impl'><code class='in-band'>impl<'a, T> <a class="trait" href="../../std/iter/trait.IntoIterator.html" title="trait std::iter::IntoIterator">IntoIterator</a> for &'a <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T></code><a href='#impl-IntoIterator-2' class='anchor'></a><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1082-1089' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Item-2' class="type"><code id='Item.t-2'>type <a href='../../std/iter/trait.IntoIterator.html#associatedtype.Item' class="type">Item</a> = <a class="primitive" href="../primitive.reference.html">&'a </a>T</code></h4><div class='docblock'><p>The type of the elements being iterated over.</p>
</div><h4 id='associatedtype.IntoIter-2' class="type"><code id='IntoIter.t-2'>type <a href='../../std/iter/trait.IntoIterator.html#associatedtype.IntoIter' class="type">IntoIter</a> = <a class="struct" href="../../std/collections/linked_list/struct.Iter.html" title="struct std::collections::linked_list::Iter">Iter</a><'a, T></code></h4><div class='docblock'><p>Which kind of iterator are we turning this into?</p>
</div><h4 id='method.into_iter-2' class="method hidden"><div class="important-traits"><div class='tooltip'>ⓘ<span class='tooltiptext'>Important traits for <a class="struct" href="../../std/collections/linked_list/struct.Iter.html" title="struct std::collections::linked_list::Iter">Iter</a><'a, T></span></div><div class="content hidden"><h3 class="important">Important traits for <a class="struct" href="../../std/collections/linked_list/struct.Iter.html" title="struct std::collections::linked_list::Iter">Iter</a><'a, T></h3><code class="content"><span class="where fmt-newline">impl<'a, T> <a class="trait" href="../../std/iter/trait.Iterator.html" title="trait std::iter::Iterator">Iterator</a> for <a class="struct" href="../../std/collections/linked_list/struct.Iter.html" title="struct std::collections::linked_list::Iter">Iter</a><'a, T></span><span class="where fmt-newline"> type <a href='../../std/iter/trait.Iterator.html#associatedtype.Item' class="type">Item</a> = <a class="primitive" href="../primitive.reference.html">&'a </a>T;</span></code></div></div><code id='into_iter.v-2'>fn <a href='../../std/iter/trait.IntoIterator.html#tymethod.into_iter' class='fnname'>into_iter</a>(self) -> <a class="struct" href="../../std/collections/linked_list/struct.Iter.html" title="struct std::collections::linked_list::Iter">Iter</a><'a, T></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1086-1088' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates an iterator from a value. <a href="../../std/iter/trait.IntoIterator.html#tymethod.into_iter">Read more</a></p>
</div></div><h3 id='impl-PartialEq%3CLinkedList%3CT%3E%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/cmp/trait.PartialEq.html" title="trait std::cmp::PartialEq">PartialEq</a><<a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T>> for <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="../../std/cmp/trait.PartialEq.html" title="trait std::cmp::PartialEq">PartialEq</a><T>, </span></code><a href='#impl-PartialEq%3CLinkedList%3CT%3E%3E' class='anchor'></a><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1128-1136' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.eq' class="method hidden"><code id='eq.v'>fn <a href='../../std/cmp/trait.PartialEq.html#tymethod.eq' class='fnname'>eq</a>(&self, other: &<a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T>) -> <a class="primitive" href="../primitive.bool.html">bool</a></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1129-1131' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used by <code>==</code>. <a href="../../std/cmp/trait.PartialEq.html#tymethod.eq">Read more</a></p>
</div><h4 id='method.ne' class="method hidden"><code id='ne.v'>fn <a href='../../std/cmp/trait.PartialEq.html#method.ne' class='fnname'>ne</a>(&self, other: &<a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T>) -> <a class="primitive" href="../primitive.bool.html">bool</a></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1133-1135' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>This method tests for <code>!=</code>.</p>
</div></div><h3 id='impl-Send' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/marker/trait.Send.html" title="trait std::marker::Send">Send</a> for <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="../../std/marker/trait.Send.html" title="trait std::marker::Send">Send</a>, </span></code><a href='#impl-Send' class='anchor'></a><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1195' title='goto source code'>[src]</a></h3><div class='impl-items'></div><h3 id='impl-FromIterator%3CT%3E' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/iter/trait.FromIterator.html" title="trait std::iter::FromIterator">FromIterator</a><T> for <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T></code><a href='#impl-FromIterator%3CT%3E' class='anchor'></a><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1061-1067' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.from_iter' class="method hidden"><code id='from_iter.v'>fn <a href='../../std/iter/trait.FromIterator.html#tymethod.from_iter' class='fnname'>from_iter</a><I>(iter: I) -> <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T> <span class="where fmt-newline">where<br> I: <a class="trait" href="../../std/iter/trait.IntoIterator.html" title="trait std::iter::IntoIterator">IntoIterator</a><Item = T>, </span></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1062-1066' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates a value from an iterator. <a href="../../std/iter/trait.FromIterator.html#tymethod.from_iter">Read more</a></p>
</div></div><h3 id='impl-Hash' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/hash/trait.Hash.html" title="trait std::hash::Hash">Hash</a> for <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="../../std/hash/trait.Hash.html" title="trait std::hash::Hash">Hash</a>, </span></code><a href='#impl-Hash' class='anchor'></a><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1171-1178' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.hash' class="method hidden"><code id='hash.v'>fn <a href='../../std/hash/trait.Hash.html#tymethod.hash' class='fnname'>hash</a><H>(&self, state: <a class="primitive" href="../primitive.reference.html">&mut </a>H) <span class="where fmt-newline">where<br> H: <a class="trait" href="../../std/hash/trait.Hasher.html" title="trait std::hash::Hasher">Hasher</a>, </span></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1172-1177' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Feeds this value into the given [<code>Hasher</code>]. <a href="../../std/hash/trait.Hash.html#tymethod.hash">Read more</a></p>
</div><h4 id='method.hash_slice' class="method"><code id='hash_slice.v'>fn <a href='../../std/hash/trait.Hash.html#method.hash_slice' class='fnname'>hash_slice</a><H>(data: <a class="primitive" href="../primitive.slice.html">&[Self]</a>, state: <a class="primitive" href="../primitive.reference.html">&mut </a>H) <span class="where fmt-newline">where<br> H: <a class="trait" href="../../std/hash/trait.Hasher.html" title="trait std::hash::Hasher">Hasher</a>, </span></code><div class='since' title='Stable since Rust version 1.3.0'>1.3.0</div><a class='srclink' href='../../src/core/hash/mod.rs.html#193-199' title='goto source code'>[src]</a></h4><div class='docblock'><p>Feeds a slice of this type into the given [<code>Hasher</code>]. <a href="../../std/hash/trait.Hash.html#method.hash_slice">Read more</a></p>
</div></div><h3 id='impl-Default' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/default/trait.Default.html" title="trait std::default::Default">Default</a> for <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T></code><a href='#impl-Default' class='anchor'></a><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#237-243' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.default' class="method"><code id='default.v'>fn <a href='../../std/default/trait.Default.html#tymethod.default' class='fnname'>default</a>() -> <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#240-242' title='goto source code'>[src]</a></h4><div class='docblock'><p>Creates an empty <code>LinkedList<T></code>.</p>
</div></div><h3 id='impl-Drop' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/ops/trait.Drop.html" title="trait std::ops::Drop">Drop</a> for <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T></code><a href='#impl-Drop' class='anchor'></a><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#785-789' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.drop' class="method hidden"><code id='drop.v'>fn <a href='../../std/ops/trait.Drop.html#tymethod.drop' class='fnname'>drop</a>(&mut self)</code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#786-788' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Executes the destructor for this type. <a href="../../std/ops/trait.Drop.html#tymethod.drop">Read more</a></p>
</div></div><h3 id='impl-Sync' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/marker/trait.Sync.html" title="trait std::marker::Sync">Sync</a> for <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="../../std/marker/trait.Sync.html" title="trait std::marker::Sync">Sync</a>, </span></code><a href='#impl-Sync' class='anchor'></a><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1198' title='goto source code'>[src]</a></h3><div class='impl-items'></div><h3 id='impl-Ord' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/cmp/trait.Ord.html" title="trait std::cmp::Ord">Ord</a> for <a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="../../std/cmp/trait.Ord.html" title="trait std::cmp::Ord">Ord</a>, </span></code><a href='#impl-Ord' class='anchor'></a><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1149-1154' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.cmp' class="method hidden"><code id='cmp.v'>fn <a href='../../std/cmp/trait.Ord.html#tymethod.cmp' class='fnname'>cmp</a>(&self, other: &<a class="struct" href="../../std/collections/linked_list/struct.LinkedList.html" title="struct std::collections::linked_list::LinkedList">LinkedList</a><T>) -> <a class="enum" href="../../std/cmp/enum.Ordering.html" title="enum std::cmp::Ordering">Ordering</a></code><a class='srclink' href='../../src/alloc/collections/linked_list.rs.html#1151-1153' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>This method returns an <code>Ordering</code> between <code>self</code> and <code>other</code>. <a href="../../std/cmp/trait.Ord.html#tymethod.cmp">Read more</a></p>
</div><h4 id='method.max' class="method"><code id='max.v'>fn <a href='../../std/cmp/trait.Ord.html#method.max' class='fnname'>max</a>(self, other: Self) -> Self</code><div class='since' title='Stable since Rust version 1.21.0'>1.21.0</div><a class='srclink' href='../../src/core/cmp.rs.html#549-552' title='goto source code'>[src]</a></h4><div class='docblock'><p>Compares and returns the maximum of two values. <a href="../../std/cmp/trait.Ord.html#method.max">Read more</a></p>
</div><h4 id='method.min' class="method"><code id='min.v'>fn <a href='../../std/cmp/trait.Ord.html#method.min' class='fnname'>min</a>(self, other: Self) -> Self</code><div class='since' title='Stable since Rust version 1.21.0'>1.21.0</div><a class='srclink' href='../../src/core/cmp.rs.html#566-569' title='goto source code'>[src]</a></h4><div class='docblock'><p>Compares and returns the minimum of two values. <a href="../../std/cmp/trait.Ord.html#method.min">Read more</a></p>
</div><h4 id='method.clamp' class="method"><code id='clamp.v'>fn <a href='../../std/cmp/trait.Ord.html#method.clamp' class='fnname'>clamp</a>(self, min: Self, max: Self) -> Self</code><a class='srclink' href='../../src/core/cmp.rs.html#590-600' title='goto source code'>[src]</a></h4><div class='stability'><div class='stab unstable'><span class='emoji'>🔬</span> This is a nightly-only experimental API. (<code>clamp</code> <a href="https://github.com/rust-lang/rust/issues/44095">#44095</a>)</div></div><div class='docblock'><p>Restrict a value to a certain interval. <a href="../../std/cmp/trait.Ord.html#method.clamp">Read more</a></p>
</div></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-TryFrom' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="../../std/convert/trait.TryFrom.html" title="trait std::convert::TryFrom">TryFrom</a> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="../../std/convert/trait.Into.html" title="trait std::convert::Into">Into</a><T>, </span></code><a href='#impl-TryFrom' class='anchor'></a><a class='srclink' href='../../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='../../std/convert/trait.TryFrom.html#associatedtype.Error' class="type">Error</a> = <a class="enum" href="../../std/convert/enum.Infallible.html" title="enum std::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='../../std/convert/trait.TryFrom.html#tymethod.try_from' class='fnname'>try_from</a>(value: U) -> <a class="enum" href="../../std/result/enum.Result.html" title="enum std::result::Result">Result</a><T, <T as <a class="trait" href="../../std/convert/trait.TryFrom.html" title="trait std::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="../../std/convert/trait.TryFrom.html#associatedtype.Error" title="type std::convert::TryFrom::Error">Error</a>></code><a class='srclink' href='../../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-From' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/convert/trait.From.html" title="trait std::convert::From">From</a> for T</code><a href='#impl-From' class='anchor'></a><a class='srclink' href='../../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='../../std/convert/trait.From.html#tymethod.from' class='fnname'>from</a>(t: T) -> T</code><a class='srclink' href='../../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-IntoIterator-3' class='impl'><code class='in-band'>impl<I> <a class="trait" href="../../std/iter/trait.IntoIterator.html" title="trait std::iter::IntoIterator">IntoIterator</a> for I <span class="where fmt-newline">where<br> I: <a class="trait" href="../../std/iter/trait.Iterator.html" title="trait std::iter::Iterator">Iterator</a>, </span></code><a href='#impl-IntoIterator-3' class='anchor'></a><a class='srclink' href='../../src/core/iter/traits/collect.rs.html#241-248' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Item-3' class="type"><code id='Item.t-3'>type <a href='../../std/iter/trait.IntoIterator.html#associatedtype.Item' class="type">Item</a> = <I as <a class="trait" href="../../std/iter/trait.Iterator.html" title="trait std::iter::Iterator">Iterator</a>>::<a class="type" href="../../std/iter/trait.Iterator.html#associatedtype.Item" title="type std::iter::Iterator::Item">Item</a></code></h4><div class='docblock'><p>The type of the elements being iterated over.</p>
</div><h4 id='associatedtype.IntoIter-3' class="type"><code id='IntoIter.t-3'>type <a href='../../std/iter/trait.IntoIterator.html#associatedtype.IntoIter' class="type">IntoIter</a> = I</code></h4><div class='docblock'><p>Which kind of iterator are we turning this into?</p>
</div><h4 id='method.into_iter-3' class="method hidden"><code id='into_iter.v-3'>fn <a href='../../std/iter/trait.IntoIterator.html#tymethod.into_iter' class='fnname'>into_iter</a>(self) -> I</code><a class='srclink' href='../../src/core/iter/traits/collect.rs.html#245-247' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates an iterator from a value. <a href="../../std/iter/trait.IntoIterator.html#tymethod.into_iter">Read more</a></p>
</div></div><h3 id='impl-TryInto' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="../../std/convert/trait.TryInto.html" title="trait std::convert::TryInto">TryInto</a> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="../../std/convert/trait.TryFrom.html" title="trait std::convert::TryFrom">TryFrom</a><T>, </span></code><a href='#impl-TryInto' class='anchor'></a><a class='srclink' href='../../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='../../std/convert/trait.TryInto.html#associatedtype.Error' class="type">Error</a> = <U as <a class="trait" href="../../std/convert/trait.TryFrom.html" title="trait std::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="../../std/convert/trait.TryFrom.html#associatedtype.Error" title="type std::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='../../std/convert/trait.TryInto.html#tymethod.try_into' class='fnname'>try_into</a>(self) -> <a class="enum" href="../../std/result/enum.Result.html" title="enum std::result::Result">Result</a><U, <U as <a class="trait" href="../../std/convert/trait.TryFrom.html" title="trait std::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="../../std/convert/trait.TryFrom.html#associatedtype.Error" title="type std::convert::TryFrom::Error">Error</a>></code><a class='srclink' href='../../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-Into' class='impl'><code class='in-band'>impl<T, U> <a class="trait" href="../../std/convert/trait.Into.html" title="trait std::convert::Into">Into</a> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="../../std/convert/trait.From.html" title="trait std::convert::From">From</a><T>, </span></code><a href='#impl-Into' class='anchor'></a><a class='srclink' href='../../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='../../std/convert/trait.Into.html#tymethod.into' class='fnname'>into</a>(self) -> U</code><a class='srclink' href='../../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-Borrow' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/borrow/trait.Borrow.html" title="trait std::borrow::Borrow">Borrow</a> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="../../std/marker/trait.Sized.html" title="trait std::marker::Sized">Sized</a>, </span></code><a href='#impl-Borrow' class='anchor'></a><a class='srclink' href='../../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"><div class="important-traits"><div class='tooltip'>ⓘ<span class='tooltiptext'>Important traits for <a class="primitive" href="../primitive.reference.html">&'_ mut </a>F</span></div><div class="content hidden"><h3 class="important">Important traits for <a class="primitive" href="../primitive.reference.html">&'_ mut </a>F</h3><code class="content"><span class="where fmt-newline">impl<'_, F> <a class="trait" href="../../std/future/trait.Future.html" title="trait std::future::Future">Future</a> for <a class="primitive" href="../primitive.reference.html">&'_ mut </a>F <span class="where fmt-newline">where<br> F: <a class="trait" href="../../std/marker/trait.Unpin.html" title="trait std::marker::Unpin">Unpin</a> + <a class="trait" href="../../std/future/trait.Future.html" title="trait std::future::Future">Future</a> + ?<a class="trait" href="../../std/marker/trait.Sized.html" title="trait std::marker::Sized">Sized</a>, </span></span><span class="where fmt-newline"> type <a href='../../std/future/trait.Future.html#associatedtype.Output' class="type">Output</a> = <F as <a class="trait" href="../../std/future/trait.Future.html" title="trait std::future::Future">Future</a>>::<a class="type" href="../../std/future/trait.Future.html#associatedtype.Output" title="type std::future::Future::Output">Output</a>;</span><span class="where fmt-newline">impl<'_, I> <a class="trait" href="../../std/iter/trait.Iterator.html" title="trait std::iter::Iterator">Iterator</a> for <a class="primitive" href="../primitive.reference.html">&'_ mut </a>I <span class="where fmt-newline">where<br> I: <a class="trait" href="../../std/iter/trait.Iterator.html" title="trait std::iter::Iterator">Iterator</a> + ?<a class="trait" href="../../std/marker/trait.Sized.html" title="trait std::marker::Sized">Sized</a>, </span></span><span class="where fmt-newline"> type <a href='../../std/iter/trait.Iterator.html#associatedtype.Item' class="type">Item</a> = <I as <a class="trait" href="../../std/iter/trait.Iterator.html" title="trait std::iter::Iterator">Iterator</a>>::<a class="type" href="../../std/iter/trait.Iterator.html#associatedtype.Item" title="type std::iter::Iterator::Item">Item</a>;</span><span class="where fmt-newline">impl<R: <a class="trait" href="../../std/io/trait.Read.html" title="trait std::io::Read">Read</a> + ?<a class="trait" href="../../std/marker/trait.Sized.html" title="trait std::marker::Sized">Sized</a>, '_> <a class="trait" href="../../std/io/trait.Read.html" title="trait std::io::Read">Read</a> for <a class="primitive" href="../primitive.reference.html">&'_ mut </a>R</span><span class="where fmt-newline">impl<W: <a class="trait" href="../../std/io/trait.Write.html" title="trait std::io::Write">Write</a> + ?<a class="trait" href="../../std/marker/trait.Sized.html" title="trait std::marker::Sized">Sized</a>, '_> <a class="trait" href="../../std/io/trait.Write.html" title="trait std::io::Write">Write</a> for <a class="primitive" href="../primitive.reference.html">&'_ mut </a>W</span></code></div></div><code id='borrow.v'>fn <a href='../../std/borrow/trait.Borrow.html#tymethod.borrow' class='fnname'>borrow</a>(&self) -> <a class="primitive" href="../primitive.reference.html">&</a>T</code><a class='srclink' href='../../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="../../std/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
</div></div><h3 id='impl-BorrowMut' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/borrow/trait.BorrowMut.html" title="trait std::borrow::BorrowMut">BorrowMut</a> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="../../std/marker/trait.Sized.html" title="trait std::marker::Sized">Sized</a>, </span></code><a href='#impl-BorrowMut' class='anchor'></a><a class='srclink' href='../../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"><div class="important-traits"><div class='tooltip'>ⓘ<span class='tooltiptext'>Important traits for <a class="primitive" href="../primitive.reference.html">&'_ mut </a>F</span></div><div class="content hidden"><h3 class="important">Important traits for <a class="primitive" href="../primitive.reference.html">&'_ mut </a>F</h3><code class="content"><span class="where fmt-newline">impl<'_, F> <a class="trait" href="../../std/future/trait.Future.html" title="trait std::future::Future">Future</a> for <a class="primitive" href="../primitive.reference.html">&'_ mut </a>F <span class="where fmt-newline">where<br> F: <a class="trait" href="../../std/marker/trait.Unpin.html" title="trait std::marker::Unpin">Unpin</a> + <a class="trait" href="../../std/future/trait.Future.html" title="trait std::future::Future">Future</a> + ?<a class="trait" href="../../std/marker/trait.Sized.html" title="trait std::marker::Sized">Sized</a>, </span></span><span class="where fmt-newline"> type <a href='../../std/future/trait.Future.html#associatedtype.Output' class="type">Output</a> = <F as <a class="trait" href="../../std/future/trait.Future.html" title="trait std::future::Future">Future</a>>::<a class="type" href="../../std/future/trait.Future.html#associatedtype.Output" title="type std::future::Future::Output">Output</a>;</span><span class="where fmt-newline">impl<'_, I> <a class="trait" href="../../std/iter/trait.Iterator.html" title="trait std::iter::Iterator">Iterator</a> for <a class="primitive" href="../primitive.reference.html">&'_ mut </a>I <span class="where fmt-newline">where<br> I: <a class="trait" href="../../std/iter/trait.Iterator.html" title="trait std::iter::Iterator">Iterator</a> + ?<a class="trait" href="../../std/marker/trait.Sized.html" title="trait std::marker::Sized">Sized</a>, </span></span><span class="where fmt-newline"> type <a href='../../std/iter/trait.Iterator.html#associatedtype.Item' class="type">Item</a> = <I as <a class="trait" href="../../std/iter/trait.Iterator.html" title="trait std::iter::Iterator">Iterator</a>>::<a class="type" href="../../std/iter/trait.Iterator.html#associatedtype.Item" title="type std::iter::Iterator::Item">Item</a>;</span><span class="where fmt-newline">impl<R: <a class="trait" href="../../std/io/trait.Read.html" title="trait std::io::Read">Read</a> + ?<a class="trait" href="../../std/marker/trait.Sized.html" title="trait std::marker::Sized">Sized</a>, '_> <a class="trait" href="../../std/io/trait.Read.html" title="trait std::io::Read">Read</a> for <a class="primitive" href="../primitive.reference.html">&'_ mut </a>R</span><span class="where fmt-newline">impl<W: <a class="trait" href="../../std/io/trait.Write.html" title="trait std::io::Write">Write</a> + ?<a class="trait" href="../../std/marker/trait.Sized.html" title="trait std::marker::Sized">Sized</a>, '_> <a class="trait" href="../../std/io/trait.Write.html" title="trait std::io::Write">Write</a> for <a class="primitive" href="../primitive.reference.html">&'_ mut </a>W</span></code></div></div><code id='borrow_mut.v'>fn <a href='../../std/borrow/trait.BorrowMut.html#tymethod.borrow_mut' class='fnname'>borrow_mut</a>(&mut self) -> <a class="primitive" href="../primitive.reference.html">&mut </a>T</code><a class='srclink' href='../../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="../../std/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
</div></div><h3 id='impl-Any' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/any/trait.Any.html" title="trait std::any::Any">Any</a> for T <span class="where fmt-newline">where<br> T: 'static + ?<a class="trait" href="../../std/marker/trait.Sized.html" title="trait std::marker::Sized">Sized</a>, </span></code><a href='#impl-Any' class='anchor'></a><a class='srclink' href='../../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='../../std/any/trait.Any.html#tymethod.type_id' class='fnname'>type_id</a>(&self) -> <a class="struct" href="../../std/any/struct.TypeId.html" title="struct std::any::TypeId">TypeId</a></code><a class='srclink' href='../../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="../../std/any/trait.Any.html#tymethod.type_id">Read more</a></p>
</div></div><h3 id='impl-ToOwned' class='impl'><code class='in-band'>impl<T> <a class="trait" href="../../std/borrow/trait.ToOwned.html" title="trait std::borrow::ToOwned">ToOwned</a> for T <span class="where fmt-newline">where<br> T: <a class="trait" href="../../std/clone/trait.Clone.html" title="trait std::clone::Clone">Clone</a>, </span></code><a href='#impl-ToOwned' class='anchor'></a><a class='srclink' href='../../src/alloc/borrow.rs.html#80-91' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='associatedtype.Owned' class="type"><code id='Owned.t'>type <a href='../../std/borrow/trait.ToOwned.html#associatedtype.Owned' class="type">Owned</a> = T</code></h4><h4 id='method.to_owned' class="method hidden"><code id='to_owned.v'>fn <a href='../../std/borrow/trait.ToOwned.html#tymethod.to_owned' class='fnname'>to_owned</a>(&self) -> T</code><a class='srclink' href='../../src/alloc/borrow.rs.html#84-86' title='goto source code'>[src]</a></h4><div class='docblock hidden'><p>Creates owned data from borrowed data, usually by cloning. <a href="../../std/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></p>
</div><h4 id='method.clone_into' class="method hidden"><code id='clone_into.v'>fn <a href='../../std/borrow/trait.ToOwned.html#method.clone_into' class='fnname'>clone_into</a>(&self, target: <a class="primitive" href="../primitive.reference.html">&mut </a>T)</code><a class='srclink' href='../../src/alloc/borrow.rs.html#88-90' title='goto source code'>[src]</a></h4><div class='stability hidden'><div class='stab unstable'><details><summary><span class='emoji'>🔬</span> This is a nightly-only experimental API. (<code>toowned_clone_into</code> <a href="https://github.com/rust-lang/rust/issues/41263">#41263</a>)</summary><p>recently added</p>
</details></div></div><div class='docblock hidden'><p>Uses borrowed data to replace owned data, usually by cloning. <a href="../../std/borrow/trait.ToOwned.html#method.clone_into">Read more</a></p>
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