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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="A hash set where the iteration order of the values is independent of their hash values."><title>IndexSet in indexmap::set - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-ac92e1bbe349e143.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="indexmap" data-themes="" data-resource-suffix="" data-rustdoc-version="1.76.0 (07dca489a 2024-02-04)" data-channel="1.76.0" data-search-js="search-2b6ce74ff89ae146.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../../static.files/storage-f2adc0d6ca4d09fb.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-305769736d49e732.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-feafe1bb7466e4bd.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc struct"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">&#9776;</button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../indexmap/index.html">indexmap</a><span class="version">2.2.5</span></h2></div><h2 class="location"><a href="#">IndexSet</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block method"><li><a href="#method.as_slice">as_slice</a></li><li><a href="#method.binary_search">binary_search</a></li><li><a href="#method.binary_search_by">binary_search_by</a></li><li><a href="#method.binary_search_by_key">binary_search_by_key</a></li><li><a href="#method.capacity">capacity</a></li><li><a href="#method.clear">clear</a></li><li><a href="#method.contains">contains</a></li><li><a href="#method.difference">difference</a></li><li><a href="#method.drain">drain</a></li><li><a href="#method.first">first</a></li><li><a href="#method.get">get</a></li><li><a href="#method.get_full">get_full</a></li><li><a href="#method.get_index">get_index</a></li><li><a href="#method.get_index_of">get_index_of</a></li><li><a href="#method.get_range">get_range</a></li><li><a href="#method.hasher">hasher</a></li><li><a href="#method.insert">insert</a></li><li><a href="#method.insert_full">insert_full</a></li><li><a href="#method.insert_sorted">insert_sorted</a></li><li><a href="#method.intersection">intersection</a></li><li><a href="#method.into_boxed_slice">into_boxed_slice</a></li><li><a href="#method.is_disjoint">is_disjoint</a></li><li><a href="#method.is_empty">is_empty</a></li><li><a href="#method.is_subset">is_subset</a></li><li><a href="#method.is_superset">is_superset</a></li><li><a href="#method.iter">iter</a></li><li><a href="#method.last">last</a></li><li><a href="#method.len">len</a></li><li><a href="#method.move_index">move_index</a></li><li><a href="#method.new">new</a></li><li><a href="#method.partition_point">partition_point</a></li><li><a href="#method.pop">pop</a></li><li><a href="#method.remove">remove</a></li><li><a href="#method.replace">replace</a></li><li><a href="#method.replace_full">replace_full</a></li><li><a href="#method.reserve">reserve</a></li><li><a href="#method.reserve_exact">reserve_exact</a></li><li><a href="#method.retain">retain</a></li><li><a href="#method.reverse">reverse</a></li><li><a href="#method.shift_insert">shift_insert</a></li><li><a href="#method.shift_remove">shift_remove</a></li><li><a href="#method.shift_remove_full">shift_remove_full</a></li><li><a href="#method.shift_remove_index">shift_remove_index</a></li><li><a href="#method.shift_take">shift_take</a></li><li><a href="#method.shrink_to">shrink_to</a></li><li><a href="#method.shrink_to_fit">shrink_to_fit</a></li><li><a href="#method.sort">sort</a></li><li><a href="#method.sort_by">sort_by</a></li><li><a href="#method.sort_by_cached_key">sort_by_cached_key</a></li><li><a href="#method.sort_unstable">sort_unstable</a></li><li><a href="#method.sort_unstable_by">sort_unstable_by</a></li><li><a href="#method.sorted_by">sorted_by</a></li><li><a href="#method.sorted_unstable_by">sorted_unstable_by</a></li><li><a href="#method.splice">splice</a></li><li><a href="#method.split_off">split_off</a></li><li><a href="#method.swap_indices">swap_indices</a></li><li><a href="#method.swap_remove">swap_remove</a></li><li><a href="#method.swap_remove_full">swap_remove_full</a></li><li><a href="#method.swap_remove_index">swap_remove_index</a></li><li><a href="#method.swap_take">swap_take</a></li><li><a href="#method.symmetric_difference">symmetric_difference</a></li><li><a href="#method.take">take</a></li><li><a href="#method.truncate">truncate</a></li><li><a href="#method.try_reserve">try_reserve</a></li><li><a href="#method.try_reserve_exact">try_reserve_exact</a></li><li><a href="#method.union">union</a></li><li><a href="#method.with_capacity">with_capacity</a></li><li><a href="#method.with_capacity_and_hasher">with_capacity_and_hasher</a></li><li><a href="#method.with_hasher">with_hasher</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block trait-implementation"><li><a href="#impl-BitAnd%3C%26IndexSet%3CT,+S2%3E%3E-for-%26IndexSet%3CT,+S1%3E">BitAnd&lt;&amp;IndexSet&lt;T, S2&gt;&gt;</a></li><li><a href="#impl-BitOr%3C%26IndexSet%3CT,+S2%3E%3E-for-%26IndexSet%3CT,+S1%3E">BitOr&lt;&amp;IndexSet&lt;T, S2&gt;&gt;</a></li><li><a href="#impl-BitXor%3C%26IndexSet%3CT,+S2%3E%3E-for-%26IndexSet%3CT,+S1%3E">BitXor&lt;&amp;IndexSet&lt;T, S2&gt;&gt;</a></li><li><a href="#impl-Clone-for-IndexSet%3CT,+S%3E">Clone</a></li><li><a href="#impl-Debug-for-IndexSet%3CT,+S%3E">Debug</a></li><li><a href="#impl-Default-for-IndexSet%3CT,+S%3E">Default</a></li><li><a href="#impl-Eq-for-IndexSet%3CT,+S%3E">Eq</a></li><li><a href="#impl-Extend%3C%26T%3E-for-IndexSet%3CT,+S%3E">Extend&lt;&amp;&#x27;a T&gt;</a></li><li><a href="#impl-Extend%3CT%3E-for-IndexSet%3CT,+S%3E">Extend&lt;T&gt;</a></li><li><a href="#impl-From%3C%5BT;+N%5D%3E-for-IndexSet%3CT%3E">From&lt;[T; N]&gt;</a></li><li><a href="#impl-FromIterator%3CT%3E-for-IndexSet%3CT,+S%3E">FromIterator&lt;T&gt;</a></li><li><a href="#impl-Index%3C(Bound%3Cusize%3E,+Bound%3Cusize%3E)%3E-for-IndexSet%3CT,+S%3E">Index&lt;(Bound&lt;usize&gt;, Bound&lt;usize&gt;)&gt;</a></li><li><a href="#impl-Index%3CRange%3Cusize%3E%3E-for-IndexSet%3CT,+S%3E">Index&lt;Range&lt;usize&gt;&gt;</a></li><li><a href="#impl-Index%3CRangeFrom%3Cusize%3E%3E-for-IndexSet%3CT,+S%3E">Index&lt;RangeFrom&lt;usize&gt;&gt;</a></li><li><a href="#impl-Index%3CRangeFull%3E-for-IndexSet%3CT,+S%3E">Index&lt;RangeFull&gt;</a></li><li><a href="#impl-Index%3CRangeInclusive%3Cusize%3E%3E-for-IndexSet%3CT,+S%3E">Index&lt;RangeInclusive&lt;usize&gt;&gt;</a></li><li><a href="#impl-Index%3CRangeTo%3Cusize%3E%3E-for-IndexSet%3CT,+S%3E">Index&lt;RangeTo&lt;usize&gt;&gt;</a></li><li><a href="#impl-Index%3CRangeToInclusive%3Cusize%3E%3E-for-IndexSet%3CT,+S%3E">Index&lt;RangeToInclusive&lt;usize&gt;&gt;</a></li><li><a href="#impl-Index%3Cusize%3E-for-IndexSet%3CT,+S%3E">Index&lt;usize&gt;</a></li><li><a href="#impl-IntoIterator-for-%26IndexSet%3CT,+S%3E">IntoIterator</a></li><li><a href="#impl-IntoIterator-for-IndexSet%3CT,+S%3E">IntoIterator</a></li><li><a href="#impl-PartialEq%3CIndexSet%3CT,+S2%3E%3E-for-IndexSet%3CT,+S1%3E">PartialEq&lt;IndexSet&lt;T, S2&gt;&gt;</a></li><li><a href="#impl-Sub%3C%26IndexSet%3CT,+S2%3E%3E-for-%26IndexSet%3CT,+S1%3E">Sub&lt;&amp;IndexSet&lt;T, S2&gt;&gt;</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block synthetic-implementation"><li><a href="#impl-RefUnwindSafe-for-IndexSet%3CT,+S%3E">RefUnwindSafe</a></li><li><a href="#impl-Send-for-IndexSet%3CT,+S%3E">Send</a></li><li><a href="#impl-Sync-for-IndexSet%3CT,+S%3E">Sync</a></li><li><a href="#impl-Unpin-for-IndexSet%3CT,+S%3E">Unpin</a></li><li><a href="#impl-UnwindSafe-for-IndexSet%3CT,+S%3E">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block blanket-implementation"><li><a href="#impl-Any-for-T">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-T">Borrow&lt;T&gt;</a></li><li><a href="#impl-BorrowMut%3CT%3E-for-T">BorrowMut&lt;T&gt;</a></li><li><a href="#impl-Equivalent%3CK%3E-for-Q">Equivalent&lt;K&gt;</a></li><li><a href="#impl-Equivalent%3CK%3E-for-Q-1">Equivalent&lt;K&gt;</a></li><li><a href="#impl-From%3CT%3E-for-T">From&lt;T&gt;</a></li><li><a href="#impl-Into%3CU%3E-for-T">Into&lt;U&gt;</a></li><li><a href="#impl-ToOwned-for-T">ToOwned</a></li><li><a href="#impl-TryFrom%3CU%3E-for-T">TryFrom&lt;U&gt;</a></li><li><a href="#impl-TryInto%3CU%3E-for-T">TryInto&lt;U&gt;</a></li></ul></section><h2><a href="index.html">In indexmap::set</a></h2></div></nav><div class="sidebar-resizer"></div>
<main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><div id="sidebar-button" tabindex="-1"><a href="../../indexmap/all.html" title="show sidebar"></a></div><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" tabindex="-1"><a href="../../help.html" title="help">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Struct <a href="../index.html">indexmap</a>::<wbr><a href="index.html">set</a>::<wbr><a class="struct" href="#">IndexSet</a><button id="copy-path" title="Copy item path to clipboard"><img src="../../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../../src/indexmap/set.rs.html#82-84">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>&#x2212;</span>]</button></span></div><pre class="rust item-decl"><code>pub struct IndexSet&lt;T, S = <a class="struct" href="https://doc.rust-lang.org/1.76.0/std/hash/random/struct.RandomState.html" title="struct std::hash::random::RandomState">RandomState</a>&gt; { <span class="comment">/* private fields */</span> }</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>A hash set where the iteration order of the values is independent of their
hash values.</p>
<p>The interface is closely compatible with the standard
<a href="https://doc.rust-lang.org/1.76.0/std/collections/hash/set/struct.HashSet.html" title="struct std::collections::hash::set::HashSet"><code>HashSet</code></a>,
but also has additional features.</p>
<h2 id="order"><a href="#order">Order</a></h2>
<p>The values have a consistent order that is determined by the sequence of
insertion and removal calls on the set. The order does not depend on the
values or the hash function at all. Note that insertion order and value
are not affected if a re-insertion is attempted once an element is
already present.</p>
<p>All iterators traverse the set <em>in order</em>. Set operation iterators like
<a href="struct.IndexSet.html#method.union" title="method indexmap::set::IndexSet::union"><code>IndexSet::union</code></a> produce a concatenated order, as do their matching “bitwise”
operators. See their documentation for specifics.</p>
<p>The insertion order is preserved, with <strong>notable exceptions</strong> like the
<a href="struct.IndexSet.html#method.remove" title="method indexmap::set::IndexSet::remove"><code>.remove()</code></a> or <a href="struct.IndexSet.html#method.swap_remove" title="method indexmap::set::IndexSet::swap_remove"><code>.swap_remove()</code></a> methods.
Methods such as <a href="struct.IndexSet.html#method.sort_by" title="method indexmap::set::IndexSet::sort_by"><code>.sort_by()</code></a> of
course result in a new order, depending on the sorting order.</p>
<h2 id="indices"><a href="#indices">Indices</a></h2>
<p>The values are indexed in a compact range without holes in the range
<code>0..self.len()</code>. For example, the method <code>.get_full</code> looks up the index for
a value, and the method <code>.get_index</code> looks up the value by index.</p>
<h2 id="complexity"><a href="#complexity">Complexity</a></h2>
<p>Internally, <code>IndexSet&lt;T, S&gt;</code> just holds an <a href="../map/struct.IndexMap.html" title="struct indexmap::map::IndexMap"><code>IndexMap&lt;T, (), S&gt;</code></a>. Thus the complexity
of the two are the same for most methods.</p>
<h2 id="examples"><a href="#examples">Examples</a></h2>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>indexmap::IndexSet;
<span class="comment">// Collects which letters appear in a sentence.
</span><span class="kw">let </span>letters: IndexSet&lt;<span class="kw">_</span>&gt; = <span class="string">"a short treatise on fungi"</span>.chars().collect();
<span class="macro">assert!</span>(letters.contains(<span class="kw-2">&amp;</span><span class="string">'s'</span>));
<span class="macro">assert!</span>(letters.contains(<span class="kw-2">&amp;</span><span class="string">'t'</span>));
<span class="macro">assert!</span>(letters.contains(<span class="kw-2">&amp;</span><span class="string">'u'</span>));
<span class="macro">assert!</span>(!letters.contains(<span class="kw-2">&amp;</span><span class="string">'y'</span>));</code></pre></div>
</div></details><h2 id="implementations" class="section-header">Implementations<a href="#implementations" class="anchor">§</a></h2><div id="implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-IndexSet%3CT%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#150-167">source</a><a href="#impl-IndexSet%3CT%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T&gt;</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.new" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#152-156">source</a><h4 class="code-header">pub fn <a href="#method.new" class="fn">new</a>() -&gt; Self</h4></section></summary><div class="docblock"><p>Create a new set. (Does not allocate.)</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.with_capacity" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#162-166">source</a><h4 class="code-header">pub fn <a href="#method.with_capacity" class="fn">with_capacity</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -&gt; Self</h4></section></summary><div class="docblock"><p>Create a new set with capacity for <code>n</code> elements.
(Does not allocate if <code>n</code> is zero.)</p>
<p>Computes in <strong>O(n)</strong> time.</p>
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#169-325">source</a><a href="#impl-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.with_capacity_and_hasher" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#174-178">source</a><h4 class="code-header">pub fn <a href="#method.with_capacity_and_hasher" class="fn">with_capacity_and_hasher</a>(n: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, hash_builder: S) -&gt; Self</h4></section></summary><div class="docblock"><p>Create a new set with capacity for <code>n</code> elements.
(Does not allocate if <code>n</code> is zero.)</p>
<p>Computes in <strong>O(n)</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.with_hasher" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#184-188">source</a><h4 class="code-header">pub const fn <a href="#method.with_hasher" class="fn">with_hasher</a>(hash_builder: S) -&gt; Self</h4></section></summary><div class="docblock"><p>Create a new set with <code>hash_builder</code>.</p>
<p>This function is <code>const</code>, so it
can be called in <code>static</code> contexts.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.capacity" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#196-198">source</a><h4 class="code-header">pub fn <a href="#method.capacity" class="fn">capacity</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a></h4></section></summary><div class="docblock"><p>Return the number of elements the set can hold without reallocating.</p>
<p>This number is a lower bound; the set might be able to hold more,
but is guaranteed to be able to hold at least this many.</p>
<p>Computes in <strong>O(1)</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.hasher" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#201-203">source</a><h4 class="code-header">pub fn <a href="#method.hasher" class="fn">hasher</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;S</a></h4></section></summary><div class="docblock"><p>Return a reference to the set’s <code>BuildHasher</code>.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.len" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#208-210">source</a><h4 class="code-header">pub fn <a href="#method.len" class="fn">len</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a></h4></section></summary><div class="docblock"><p>Return the number of elements in the set.</p>
<p>Computes in <strong>O(1)</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.is_empty" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#215-217">source</a><h4 class="code-header">pub fn <a href="#method.is_empty" class="fn">is_empty</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a></h4></section></summary><div class="docblock"><p>Returns true if the set contains no elements.</p>
<p>Computes in <strong>O(1)</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.iter" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#220-222">source</a><h4 class="code-header">pub fn <a href="#method.iter" class="fn">iter</a>(&amp;self) -&gt; <a class="struct" href="struct.Iter.html" title="struct indexmap::set::Iter">Iter</a>&lt;'_, T&gt; <a href="#" class="tooltip" data-notable-ty="Iter&lt;&#39;_, T&gt;">ⓘ</a></h4></section></summary><div class="docblock"><p>Return an iterator over the values of the set, in their order</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.clear" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#227-229">source</a><h4 class="code-header">pub fn <a href="#method.clear" class="fn">clear</a>(&amp;mut self)</h4></section></summary><div class="docblock"><p>Remove all elements in the set, while preserving its capacity.</p>
<p>Computes in <strong>O(n)</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.truncate" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#234-236">source</a><h4 class="code-header">pub fn <a href="#method.truncate" class="fn">truncate</a>(&amp;mut self, len: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>)</h4></section></summary><div class="docblock"><p>Shortens the set, keeping the first <code>len</code> elements and dropping the rest.</p>
<p>If <code>len</code> is greater than the set’s current length, this has no effect.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.drain" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#251-256">source</a><h4 class="code-header">pub fn <a href="#method.drain" class="fn">drain</a>&lt;R&gt;(&amp;mut self, range: R) -&gt; <a class="struct" href="struct.Drain.html" title="struct indexmap::set::Drain">Drain</a>&lt;'_, T&gt; <a href="#" class="tooltip" data-notable-ty="Drain&lt;&#39;_, T&gt;">ⓘ</a><div class="where">where
R: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/range/trait.RangeBounds.html" title="trait core::ops::range::RangeBounds">RangeBounds</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;,</div></h4></section></summary><div class="docblock"><p>Clears the <code>IndexSet</code> in the given index range, returning those values
as a drain iterator.</p>
<p>The range may be any type that implements <a href="https://doc.rust-lang.org/1.76.0/core/ops/range/trait.RangeBounds.html" title="trait core::ops::range::RangeBounds"><code>RangeBounds&lt;usize&gt;</code></a>,
including all of the <code>std::ops::Range*</code> types, or even a tuple pair of
<code>Bound</code> start and end values. To drain the set entirely, use <code>RangeFull</code>
like <code>set.drain(..)</code>.</p>
<p>This shifts down all entries following the drained range to fill the
gap, and keeps the allocated memory for reuse.</p>
<p><em><strong>Panics</strong></em> if the starting point is greater than the end point or if
the end point is greater than the length of the set.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.split_off" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#265-272">source</a><h4 class="code-header">pub fn <a href="#method.split_off" class="fn">split_off</a>(&amp;mut self, at: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -&gt; Self<div class="where">where
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</div></h4></section></summary><div class="docblock"><p>Splits the collection into two at the given index.</p>
<p>Returns a newly allocated set containing the elements in the range
<code>[at, len)</code>. After the call, the original set will be left containing
the elements <code>[0, at)</code> with its previous capacity unchanged.</p>
<p><em><strong>Panics</strong></em> if <code>at &gt; len</code>.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.reserve" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#277-279">source</a><h4 class="code-header">pub fn <a href="#method.reserve" class="fn">reserve</a>(&amp;mut self, additional: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>)</h4></section></summary><div class="docblock"><p>Reserve capacity for <code>additional</code> more values.</p>
<p>Computes in <strong>O(n)</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.reserve_exact" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#289-291">source</a><h4 class="code-header">pub fn <a href="#method.reserve_exact" class="fn">reserve_exact</a>(&amp;mut self, additional: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>)</h4></section></summary><div class="docblock"><p>Reserve capacity for <code>additional</code> more values, without over-allocating.</p>
<p>Unlike <code>reserve</code>, this does not deliberately over-allocate the entry capacity to avoid
frequent re-allocations. However, the underlying data structures may still have internal
capacity requirements, and the allocator itself may give more space than requested, so this
cannot be relied upon to be precisely minimal.</p>
<p>Computes in <strong>O(n)</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.try_reserve" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#296-298">source</a><h4 class="code-header">pub fn <a href="#method.try_reserve" class="fn">try_reserve</a>(&amp;mut self, additional: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.unit.html">()</a>, <a class="struct" href="../struct.TryReserveError.html" title="struct indexmap::TryReserveError">TryReserveError</a>&gt;</h4></section></summary><div class="docblock"><p>Try to reserve capacity for <code>additional</code> more values.</p>
<p>Computes in <strong>O(n)</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.try_reserve_exact" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#308-310">source</a><h4 class="code-header">pub fn <a href="#method.try_reserve_exact" class="fn">try_reserve_exact</a>(
&amp;mut self,
additional: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.unit.html">()</a>, <a class="struct" href="../struct.TryReserveError.html" title="struct indexmap::TryReserveError">TryReserveError</a>&gt;</h4></section></summary><div class="docblock"><p>Try to reserve capacity for <code>additional</code> more values, without over-allocating.</p>
<p>Unlike <code>try_reserve</code>, this does not deliberately over-allocate the entry capacity to avoid
frequent re-allocations. However, the underlying data structures may still have internal
capacity requirements, and the allocator itself may give more space than requested, so this
cannot be relied upon to be precisely minimal.</p>
<p>Computes in <strong>O(n)</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.shrink_to_fit" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#315-317">source</a><h4 class="code-header">pub fn <a href="#method.shrink_to_fit" class="fn">shrink_to_fit</a>(&amp;mut self)</h4></section></summary><div class="docblock"><p>Shrink the capacity of the set as much as possible.</p>
<p>Computes in <strong>O(n)</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.shrink_to" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#322-324">source</a><h4 class="code-header">pub fn <a href="#method.shrink_to" class="fn">shrink_to</a>(&amp;mut self, min_capacity: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>)</h4></section></summary><div class="docblock"><p>Shrink the capacity of the set with a lower limit.</p>
<p>Computes in <strong>O(n)</strong> time.</p>
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IndexSet%3CT,+S%3E-1" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#327-502">source</a><a href="#impl-IndexSet%3CT,+S%3E-1" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>,
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.insert" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#340-342">source</a><h4 class="code-header">pub fn <a href="#method.insert" class="fn">insert</a>(&amp;mut self, value: T) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a></h4></section></summary><div class="docblock"><p>Insert the value into the set.</p>
<p>If an equivalent item already exists in the set, it returns
<code>false</code> leaving the original value in the set and without
altering its insertion order. Otherwise, it inserts the new
item and returns <code>true</code>.</p>
<p>Computes in <strong>O(1)</strong> time (amortized average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.insert_full" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#353-356">source</a><h4 class="code-header">pub fn <a href="#method.insert_full" class="fn">insert_full</a>(&amp;mut self, value: T) -&gt; (<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a>)</h4></section></summary><div class="docblock"><p>Insert the value into the set, and get its index.</p>
<p>If an equivalent item already exists in the set, it returns
the index of the existing item and <code>false</code>, leaving the
original value in the set and without altering its insertion
order. Otherwise, it inserts the new item and returns the index
of the inserted item and <code>true</code>.</p>
<p>Computes in <strong>O(1)</strong> time (amortized average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.insert_sorted" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#376-382">source</a><h4 class="code-header">pub fn <a href="#method.insert_sorted" class="fn">insert_sorted</a>(&amp;mut self, value: T) -&gt; (<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a>)<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,</div></h4></section></summary><div class="docblock"><p>Insert the value into the set at its ordered position among sorted values.</p>
<p>This is equivalent to finding the position with
<a href="struct.IndexSet.html#method.binary_search" title="method indexmap::set::IndexSet::binary_search"><code>binary_search</code></a>, and if needed calling
<a href="struct.IndexSet.html#method.shift_insert" title="method indexmap::set::IndexSet::shift_insert"><code>shift_insert</code></a> for a new value.</p>
<p>If the sorted item is found in the set, it returns the index of that
existing item and <code>false</code>, without any change. Otherwise, it inserts the
new item and returns its sorted index and <code>true</code>.</p>
<p>If the existing items are <strong>not</strong> already sorted, then the insertion
index is unspecified (like <a href="https://doc.rust-lang.org/1.76.0/std/primitive.slice.html#method.binary_search" title="method slice::binary_search"><code>slice::binary_search</code></a>), but the value
is moved to or inserted at that position regardless.</p>
<p>Computes in <strong>O(n)</strong> time (average). Instead of repeating calls to
<code>insert_sorted</code>, it may be faster to call batched <a href="struct.IndexSet.html#method.insert" title="method indexmap::set::IndexSet::insert"><code>insert</code></a>
or <a href="struct.IndexSet.html#method.extend" title="method indexmap::set::IndexSet::extend"><code>extend</code></a> and only call <a href="struct.IndexSet.html#method.sort" title="method indexmap::set::IndexSet::sort"><code>sort</code></a> or
<a href="struct.IndexSet.html#method.sort_unstable" title="method indexmap::set::IndexSet::sort_unstable"><code>sort_unstable</code></a> once.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.shift_insert" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#394-396">source</a><h4 class="code-header">pub fn <a href="#method.shift_insert" class="fn">shift_insert</a>(&amp;mut self, index: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, value: T) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a></h4></section></summary><div class="docblock"><p>Insert the value into the set at the given index.</p>
<p>If an equivalent item already exists in the set, it returns
<code>false</code> leaving the original value in the set, but moving it to
the new position in the set. Otherwise, it inserts the new
item at the given index and returns <code>true</code>.</p>
<p><em><strong>Panics</strong></em> if <code>index</code> is out of bounds.</p>
<p>Computes in <strong>O(n)</strong> time (average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.replace" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#403-405">source</a><h4 class="code-header">pub fn <a href="#method.replace" class="fn">replace</a>(&amp;mut self, value: T) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;T&gt;</h4></section></summary><div class="docblock"><p>Adds a value to the set, replacing the existing value, if any, that is
equal to the given one, without altering its insertion order. Returns
the replaced value.</p>
<p>Computes in <strong>O(1)</strong> time (average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.replace_full" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#412-418">source</a><h4 class="code-header">pub fn <a href="#method.replace_full" class="fn">replace_full</a>(&amp;mut self, value: T) -&gt; (<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;T&gt;)</h4></section></summary><div class="docblock"><p>Adds a value to the set, replacing the existing value, if any, that is
equal to the given one, without altering its insertion order. Returns
the index of the item and its replaced value.</p>
<p>Computes in <strong>O(1)</strong> time (average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.difference" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#423-428">source</a><h4 class="code-header">pub fn <a href="#method.difference" class="fn">difference</a>&lt;'a, S2&gt;(
&amp;'a self,
other: &amp;'a <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S2&gt;
) -&gt; <a class="struct" href="struct.Difference.html" title="struct indexmap::set::Difference">Difference</a>&lt;'a, T, S2&gt; <a href="#" class="tooltip" data-notable-ty="Difference&lt;&#39;a, T, S2&gt;">ⓘ</a><div class="where">where
S2: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h4></section></summary><div class="docblock"><p>Return an iterator over the values that are in <code>self</code> but not <code>other</code>.</p>
<p>Values are produced in the same order that they appear in <code>self</code>.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.symmetric_difference" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#435-443">source</a><h4 class="code-header">pub fn <a href="#method.symmetric_difference" class="fn">symmetric_difference</a>&lt;'a, S2&gt;(
&amp;'a self,
other: &amp;'a <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S2&gt;
) -&gt; <a class="struct" href="struct.SymmetricDifference.html" title="struct indexmap::set::SymmetricDifference">SymmetricDifference</a>&lt;'a, T, S, S2&gt; <a href="#" class="tooltip" data-notable-ty="SymmetricDifference&lt;&#39;a, T, S, S2&gt;">ⓘ</a><div class="where">where
S2: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h4></section></summary><div class="docblock"><p>Return an iterator over the values that are in <code>self</code> or <code>other</code>,
but not in both.</p>
<p>Values from <code>self</code> are produced in their original order, followed by
values from <code>other</code> in their original order.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.intersection" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#448-453">source</a><h4 class="code-header">pub fn <a href="#method.intersection" class="fn">intersection</a>&lt;'a, S2&gt;(
&amp;'a self,
other: &amp;'a <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S2&gt;
) -&gt; <a class="struct" href="struct.Intersection.html" title="struct indexmap::set::Intersection">Intersection</a>&lt;'a, T, S2&gt; <a href="#" class="tooltip" data-notable-ty="Intersection&lt;&#39;a, T, S2&gt;">ⓘ</a><div class="where">where
S2: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h4></section></summary><div class="docblock"><p>Return an iterator over the values that are in both <code>self</code> and <code>other</code>.</p>
<p>Values are produced in the same order that they appear in <code>self</code>.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.union" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#459-464">source</a><h4 class="code-header">pub fn <a href="#method.union" class="fn">union</a>&lt;'a, S2&gt;(&amp;'a self, other: &amp;'a <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S2&gt;) -&gt; <a class="struct" href="struct.Union.html" title="struct indexmap::set::Union">Union</a>&lt;'a, T, S&gt; <a href="#" class="tooltip" data-notable-ty="Union&lt;&#39;a, T, S&gt;">ⓘ</a><div class="where">where
S2: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h4></section></summary><div class="docblock"><p>Return an iterator over all values that are in <code>self</code> or <code>other</code>.</p>
<p>Values from <code>self</code> are produced in their original order, followed by
values that are unique to <code>other</code> in their original order.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.splice" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#495-501">source</a><h4 class="code-header">pub fn <a href="#method.splice" class="fn">splice</a>&lt;R, I&gt;(
&amp;mut self,
range: R,
replace_with: I
) -&gt; <a class="struct" href="struct.Splice.html" title="struct indexmap::set::Splice">Splice</a>&lt;'_, I::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" title="type core::iter::traits::collect::IntoIterator::IntoIter">IntoIter</a>, T, S&gt; <a href="#" class="tooltip" data-notable-ty="Splice&lt;&#39;_, I::IntoIter, T, S&gt;">ⓘ</a><div class="where">where
R: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/range/trait.RangeBounds.html" title="trait core::ops::range::RangeBounds">RangeBounds</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;,
I: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = T&gt;,</div></h4></section></summary><div class="docblock"><p>Creates a splicing iterator that replaces the specified range in the set
with the given <code>replace_with</code> iterator and yields the removed items.
<code>replace_with</code> does not need to be the same length as <code>range</code>.</p>
<p>The <code>range</code> is removed even if the iterator is not consumed until the
end. It is unspecified how many elements are removed from the set if the
<code>Splice</code> value is leaked.</p>
<p>The input iterator <code>replace_with</code> is only consumed when the <code>Splice</code>
value is dropped. If a value from the iterator matches an existing entry
in the set (outside of <code>range</code>), then the original will be unchanged.
Otherwise, the new value will be inserted in the replaced <code>range</code>.</p>
<p><em><strong>Panics</strong></em> if the starting point is greater than the end point or if
the end point is greater than the length of the set.</p>
<h5 id="examples-1"><a href="#examples-1">Examples</a></h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>indexmap::IndexSet;
<span class="kw">let </span><span class="kw-2">mut </span>set = IndexSet::from([<span class="number">0</span>, <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>]);
<span class="kw">let </span>new = [<span class="number">5</span>, <span class="number">4</span>, <span class="number">3</span>, <span class="number">2</span>, <span class="number">1</span>];
<span class="kw">let </span>removed: Vec&lt;<span class="kw">_</span>&gt; = set.splice(<span class="number">2</span>..<span class="number">4</span>, new).collect();
<span class="comment">// 1 and 4 kept their positions, while 5, 3, and 2 were newly inserted.
</span><span class="macro">assert!</span>(set.into_iter().eq([<span class="number">0</span>, <span class="number">1</span>, <span class="number">5</span>, <span class="number">3</span>, <span class="number">2</span>, <span class="number">4</span>]));
<span class="macro">assert_eq!</span>(removed, <span class="kw-2">&amp;</span>[<span class="number">2</span>, <span class="number">3</span>]);</code></pre></div>
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IndexSet%3CT,+S%3E-2" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#504-671">source</a><a href="#impl-IndexSet%3CT,+S%3E-2" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;<div class="where">where
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.contains" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#511-516">source</a><h4 class="code-header">pub fn <a href="#method.contains" class="fn">contains</a>&lt;Q&gt;(&amp;self, value: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;Q</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a><div class="where">where
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a>&lt;T&gt; + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Return <code>true</code> if an equivalent to <code>value</code> exists in the set.</p>
<p>Computes in <strong>O(1)</strong> time (average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.get" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#522-527">source</a><h4 class="code-header">pub fn <a href="#method.get" class="fn">get</a>&lt;Q&gt;(&amp;self, value: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;Q</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a>&gt;<div class="where">where
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a>&lt;T&gt; + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Return a reference to the value stored in the set, if it is present,
else <code>None</code>.</p>
<p>Computes in <strong>O(1)</strong> time (average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.get_full" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#530-535">source</a><h4 class="code-header">pub fn <a href="#method.get_full" class="fn">get_full</a>&lt;Q&gt;(&amp;self, value: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;Q</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a>)&gt;<div class="where">where
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a>&lt;T&gt; + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Return item index and value</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.get_index_of" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#540-545">source</a><h4 class="code-header">pub fn <a href="#method.get_index_of" class="fn">get_index_of</a>&lt;Q&gt;(&amp;self, value: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;Q</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;<div class="where">where
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a>&lt;T&gt; + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Return item index, if it exists in the set</p>
<p>Computes in <strong>O(1)</strong> time (average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.remove" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#555-560">source</a><h4 class="code-header">pub fn <a href="#method.remove" class="fn">remove</a>&lt;Q&gt;(&amp;mut self, value: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;Q</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a><div class="where">where
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a>&lt;T&gt; + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section><span class="item-info"><div class="stab deprecated"><span class="emoji">👎</span><span>Deprecated: <code>remove</code> disrupts the set order – use <code>swap_remove</code> or <code>shift_remove</code> for explicit behavior.</span></div></span></summary><div class="docblock"><p>Remove the value from the set, and return <code>true</code> if it was present.</p>
<p><strong>NOTE:</strong> This is equivalent to <a href="struct.IndexSet.html#method.swap_remove" title="method indexmap::set::IndexSet::swap_remove"><code>.swap_remove(value)</code></a>, replacing this
value’s position with the last element, and it is deprecated in favor of calling that
explicitly. If you need to preserve the relative order of the values in the set, use
<a href="struct.IndexSet.html#method.shift_remove" title="method indexmap::set::IndexSet::shift_remove"><code>.shift_remove(value)</code></a> instead.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.swap_remove" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#571-576">source</a><h4 class="code-header">pub fn <a href="#method.swap_remove" class="fn">swap_remove</a>&lt;Q&gt;(&amp;mut self, value: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;Q</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a><div class="where">where
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a>&lt;T&gt; + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Remove the value from the set, and return <code>true</code> if it was present.</p>
<p>Like <a href="https://doc.rust-lang.org/1.76.0/alloc/vec/struct.Vec.html#method.swap_remove" title="method alloc::vec::Vec::swap_remove"><code>Vec::swap_remove</code></a>, the value is removed by swapping it with the
last element of the set and popping it off. <strong>This perturbs
the position of what used to be the last element!</strong></p>
<p>Return <code>false</code> if <code>value</code> was not in the set.</p>
<p>Computes in <strong>O(1)</strong> time (average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.shift_remove" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#587-592">source</a><h4 class="code-header">pub fn <a href="#method.shift_remove" class="fn">shift_remove</a>&lt;Q&gt;(&amp;mut self, value: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;Q</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a><div class="where">where
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a>&lt;T&gt; + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Remove the value from the set, and return <code>true</code> if it was present.</p>
<p>Like <a href="https://doc.rust-lang.org/1.76.0/alloc/vec/struct.Vec.html#method.remove" title="method alloc::vec::Vec::remove"><code>Vec::remove</code></a>, the value is removed by shifting all of the
elements that follow it, preserving their relative order.
<strong>This perturbs the index of all of those elements!</strong></p>
<p>Return <code>false</code> if <code>value</code> was not in the set.</p>
<p>Computes in <strong>O(n)</strong> time (average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.take" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#603-608">source</a><h4 class="code-header">pub fn <a href="#method.take" class="fn">take</a>&lt;Q&gt;(&amp;mut self, value: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;Q</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;T&gt;<div class="where">where
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a>&lt;T&gt; + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section><span class="item-info"><div class="stab deprecated"><span class="emoji">👎</span><span>Deprecated: <code>take</code> disrupts the set order – use <code>swap_take</code> or <code>shift_take</code> for explicit behavior.</span></div></span></summary><div class="docblock"><p>Removes and returns the value in the set, if any, that is equal to the
given one.</p>
<p><strong>NOTE:</strong> This is equivalent to <a href="struct.IndexSet.html#method.swap_take" title="method indexmap::set::IndexSet::swap_take"><code>.swap_take(value)</code></a>, replacing this
value’s position with the last element, and it is deprecated in favor of calling that
explicitly. If you need to preserve the relative order of the values in the set, use
<a href="struct.IndexSet.html#method.shift_take" title="method indexmap::set::IndexSet::shift_take"><code>.shift_take(value)</code></a> instead.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.swap_take" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#620-625">source</a><h4 class="code-header">pub fn <a href="#method.swap_take" class="fn">swap_take</a>&lt;Q&gt;(&amp;mut self, value: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;Q</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;T&gt;<div class="where">where
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a>&lt;T&gt; + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Removes and returns the value in the set, if any, that is equal to the
given one.</p>
<p>Like <a href="https://doc.rust-lang.org/1.76.0/alloc/vec/struct.Vec.html#method.swap_remove" title="method alloc::vec::Vec::swap_remove"><code>Vec::swap_remove</code></a>, the value is removed by swapping it with the
last element of the set and popping it off. <strong>This perturbs
the position of what used to be the last element!</strong></p>
<p>Return <code>None</code> if <code>value</code> was not in the set.</p>
<p>Computes in <strong>O(1)</strong> time (average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.shift_take" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#637-642">source</a><h4 class="code-header">pub fn <a href="#method.shift_take" class="fn">shift_take</a>&lt;Q&gt;(&amp;mut self, value: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;Q</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;T&gt;<div class="where">where
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a>&lt;T&gt; + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Removes and returns the value in the set, if any, that is equal to the
given one.</p>
<p>Like <a href="https://doc.rust-lang.org/1.76.0/alloc/vec/struct.Vec.html#method.remove" title="method alloc::vec::Vec::remove"><code>Vec::remove</code></a>, the value is removed by shifting all of the
elements that follow it, preserving their relative order.
<strong>This perturbs the index of all of those elements!</strong></p>
<p>Return <code>None</code> if <code>value</code> was not in the set.</p>
<p>Computes in <strong>O(n)</strong> time (average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.swap_remove_full" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#651-656">source</a><h4 class="code-header">pub fn <a href="#method.swap_remove_full" class="fn">swap_remove_full</a>&lt;Q&gt;(&amp;mut self, value: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;Q</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, T)&gt;<div class="where">where
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a>&lt;T&gt; + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Remove the value from the set return it and the index it had.</p>
<p>Like <a href="https://doc.rust-lang.org/1.76.0/alloc/vec/struct.Vec.html#method.swap_remove" title="method alloc::vec::Vec::swap_remove"><code>Vec::swap_remove</code></a>, the value is removed by swapping it with the
last element of the set and popping it off. <strong>This perturbs
the position of what used to be the last element!</strong></p>
<p>Return <code>None</code> if <code>value</code> was not in the set.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.shift_remove_full" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#665-670">source</a><h4 class="code-header">pub fn <a href="#method.shift_remove_full" class="fn">shift_remove_full</a>&lt;Q&gt;(&amp;mut self, value: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;Q</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, T)&gt;<div class="where">where
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a>&lt;T&gt; + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h4></section></summary><div class="docblock"><p>Remove the value from the set return it and the index it had.</p>
<p>Like <a href="https://doc.rust-lang.org/1.76.0/alloc/vec/struct.Vec.html#method.remove" title="method alloc::vec::Vec::remove"><code>Vec::remove</code></a>, the value is removed by shifting all of the
elements that follow it, preserving their relative order.
<strong>This perturbs the index of all of those elements!</strong></p>
<p>Return <code>None</code> if <code>value</code> was not in the set.</p>
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IndexSet%3CT,+S%3E-3" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#673-942">source</a><a href="#impl-IndexSet%3CT,+S%3E-3" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.pop" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#679-681">source</a><h4 class="code-header">pub fn <a href="#method.pop" class="fn">pop</a>(&amp;mut self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;T&gt;</h4></section></summary><div class="docblock"><p>Remove the last value</p>
<p>This preserves the order of the remaining elements.</p>
<p>Computes in <strong>O(1)</strong> time (average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.retain" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#690-695">source</a><h4 class="code-header">pub fn <a href="#method.retain" class="fn">retain</a>&lt;F&gt;(&amp;mut self, keep: F)<div class="where">where
F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a>,</div></h4></section></summary><div class="docblock"><p>Scan through each value in the set and keep those where the
closure <code>keep</code> returns <code>true</code>.</p>
<p>The elements are visited in order, and remaining elements keep their
order.</p>
<p>Computes in <strong>O(n)</strong> time (average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.sort" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#704-709">source</a><h4 class="code-header">pub fn <a href="#method.sort" class="fn">sort</a>(&amp;mut self)<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,</div></h4></section></summary><div class="docblock"><p>Sort the set’s values by their default ordering.</p>
<p>This is a stable sort – but equivalent values should not normally coexist in
a set at all, so <a href="struct.IndexSet.html#method.sort_unstable" title="method indexmap::set::IndexSet::sort_unstable"><code>sort_unstable</code></a> is preferred
because it is generally faster and doesn’t allocate auxiliary memory.</p>
<p>See <a href="struct.IndexSet.html#method.sort_by" title="method indexmap::set::IndexSet::sort_by"><code>sort_by</code></a> for details.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.sort_by" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#714-719">source</a><h4 class="code-header">pub fn <a href="#method.sort_by" class="fn">sort_by</a>&lt;F&gt;(&amp;mut self, cmp: F)<div class="where">where
F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/cmp/enum.Ordering.html" title="enum core::cmp::Ordering">Ordering</a>,</div></h4></section></summary><div class="docblock"><p>Sort the set’s values in place using the comparison function <code>cmp</code>.</p>
<p>Computes in <strong>O(n log n)</strong> time and <strong>O(n)</strong> space. The sort is stable.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.sorted_by" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#725-732">source</a><h4 class="code-header">pub fn <a href="#method.sorted_by" class="fn">sorted_by</a>&lt;F&gt;(self, cmp: F) -&gt; <a class="struct" href="struct.IntoIter.html" title="struct indexmap::set::IntoIter">IntoIter</a>&lt;T&gt; <a href="#" class="tooltip" data-notable-ty="IntoIter&lt;T&gt;">ⓘ</a><div class="where">where
F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/cmp/enum.Ordering.html" title="enum core::cmp::Ordering">Ordering</a>,</div></h4></section></summary><div class="docblock"><p>Sort the values of the set and return a by-value iterator of
the values with the result.</p>
<p>The sort is stable.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.sort_unstable" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#737-742">source</a><h4 class="code-header">pub fn <a href="#method.sort_unstable" class="fn">sort_unstable</a>(&amp;mut self)<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,</div></h4></section></summary><div class="docblock"><p>Sort the set’s values by their default ordering.</p>
<p>See <a href="struct.IndexSet.html#method.sort_unstable_by" title="method indexmap::set::IndexSet::sort_unstable_by"><code>sort_unstable_by</code></a> for details.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.sort_unstable_by" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#747-752">source</a><h4 class="code-header">pub fn <a href="#method.sort_unstable_by" class="fn">sort_unstable_by</a>&lt;F&gt;(&amp;mut self, cmp: F)<div class="where">where
F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/cmp/enum.Ordering.html" title="enum core::cmp::Ordering">Ordering</a>,</div></h4></section></summary><div class="docblock"><p>Sort the set’s values in place using the comparison function <code>cmp</code>.</p>
<p>Computes in <strong>O(n log n)</strong> time. The sort is unstable.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.sorted_unstable_by" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#756-763">source</a><h4 class="code-header">pub fn <a href="#method.sorted_unstable_by" class="fn">sorted_unstable_by</a>&lt;F&gt;(self, cmp: F) -&gt; <a class="struct" href="struct.IntoIter.html" title="struct indexmap::set::IntoIter">IntoIter</a>&lt;T&gt; <a href="#" class="tooltip" data-notable-ty="IntoIter&lt;T&gt;">ⓘ</a><div class="where">where
F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/cmp/enum.Ordering.html" title="enum core::cmp::Ordering">Ordering</a>,</div></h4></section></summary><div class="docblock"><p>Sort the values of the set and return a by-value iterator of
the values with the result.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.sort_by_cached_key" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#773-781">source</a><h4 class="code-header">pub fn <a href="#method.sort_by_cached_key" class="fn">sort_by_cached_key</a>&lt;K, F&gt;(&amp;mut self, sort_key: F)<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,
F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a>) -&gt; K,</div></h4></section></summary><div class="docblock"><p>Sort the set’s values in place using a key extraction function.</p>
<p>During sorting, the function is called at most once per entry, by using temporary storage
to remember the results of its evaluation. The order of calls to the function is
unspecified and may change between versions of <code>indexmap</code> or the standard library.</p>
<p>Computes in <strong>O(m n + n log n + c)</strong> time () and <strong>O(n)</strong> space, where the function is
<strong>O(m)</strong>, <em>n</em> is the length of the map, and <em>c</em> the capacity. The sort is stable.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.binary_search" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#790-795">source</a><h4 class="code-header">pub fn <a href="#method.binary_search" class="fn">binary_search</a>(&amp;self, x: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,</div></h4></section></summary><div class="docblock"><p>Search over a sorted set for a value.</p>
<p>Returns the position where that value is present, or the position where it can be inserted
to maintain the sort. See <a href="https://doc.rust-lang.org/1.76.0/std/primitive.slice.html#method.binary_search" title="method slice::binary_search"><code>slice::binary_search</code></a> for more details.</p>
<p>Computes in <strong>O(log(n))</strong> time, which is notably less scalable than looking the value up
using <a href="struct.IndexSet.html#method.get_index_of" title="method indexmap::set::IndexSet::get_index_of"><code>get_index_of</code></a>, but this can also position missing values.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.binary_search_by" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#804-809">source</a><h4 class="code-header">pub fn <a href="#method.binary_search_by" class="fn">binary_search_by</a>&lt;'a, F&gt;(&amp;'a self, f: F) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;<div class="where">where
F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;'a T</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/cmp/enum.Ordering.html" title="enum core::cmp::Ordering">Ordering</a>,</div></h4></section></summary><div class="docblock"><p>Search over a sorted set with a comparator function.</p>
<p>Returns the position where that value is present, or the position where it can be inserted
to maintain the sort. See <a href="https://doc.rust-lang.org/1.76.0/std/primitive.slice.html#method.binary_search_by" title="method slice::binary_search_by"><code>slice::binary_search_by</code></a> for more details.</p>
<p>Computes in <strong>O(log(n))</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.binary_search_by_key" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#818-824">source</a><h4 class="code-header">pub fn <a href="#method.binary_search_by_key" class="fn">binary_search_by_key</a>&lt;'a, B, F&gt;(
&amp;'a self,
b: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;B</a>,
f: F
) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;<div class="where">where
F: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;'a T</a>) -&gt; B,
B: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Ord.html" title="trait core::cmp::Ord">Ord</a>,</div></h4></section></summary><div class="docblock"><p>Search over a sorted set with an extraction function.</p>
<p>Returns the position where that value is present, or the position where it can be inserted
to maintain the sort. See <a href="https://doc.rust-lang.org/1.76.0/std/primitive.slice.html#method.binary_search_by_key" title="method slice::binary_search_by_key"><code>slice::binary_search_by_key</code></a> for more details.</p>
<p>Computes in <strong>O(log(n))</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.partition_point" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#833-838">source</a><h4 class="code-header">pub fn <a href="#method.partition_point" class="fn">partition_point</a>&lt;P&gt;(&amp;self, pred: P) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a><div class="where">where
P: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a>,</div></h4></section></summary><div class="docblock"><p>Returns the index of the partition point of a sorted set according to the given predicate
(the index of the first element of the second partition).</p>
<p>See <a href="https://doc.rust-lang.org/1.76.0/std/primitive.slice.html#method.partition_point" title="method slice::partition_point"><code>slice::partition_point</code></a> for more details.</p>
<p>Computes in <strong>O(log(n))</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.reverse" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#843-845">source</a><h4 class="code-header">pub fn <a href="#method.reverse" class="fn">reverse</a>(&amp;mut self)</h4></section></summary><div class="docblock"><p>Reverses the order of the set’s values in place.</p>
<p>Computes in <strong>O(n)</strong> time and <strong>O(1)</strong> space.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.as_slice" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#850-852">source</a><h4 class="code-header">pub fn <a href="#method.as_slice" class="fn">as_slice</a>(&amp;self) -&gt; &amp;<a class="struct" href="struct.Slice.html" title="struct indexmap::set::Slice">Slice</a>&lt;T&gt;</h4></section></summary><div class="docblock"><p>Returns a slice of all the values in the set.</p>
<p>Computes in <strong>O(1)</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.into_boxed_slice" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#857-859">source</a><h4 class="code-header">pub fn <a href="#method.into_boxed_slice" class="fn">into_boxed_slice</a>(self) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.76.0/alloc/boxed/struct.Box.html" title="struct alloc::boxed::Box">Box</a>&lt;<a class="struct" href="struct.Slice.html" title="struct indexmap::set::Slice">Slice</a>&lt;T&gt;&gt;</h4></section></summary><div class="docblock"><p>Converts into a boxed slice of all the values in the set.</p>
<p>Note that this will drop the inner hash table and any excess capacity.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.get_index" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#866-868">source</a><h4 class="code-header">pub fn <a href="#method.get_index" class="fn">get_index</a>(&amp;self, index: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a>&gt;</h4></section></summary><div class="docblock"><p>Get a value by index</p>
<p>Valid indices are <em>0 &lt;= index &lt; self.len()</em></p>
<p>Computes in <strong>O(1)</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.get_range" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#875-879">source</a><h4 class="code-header">pub fn <a href="#method.get_range" class="fn">get_range</a>&lt;R: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/range/trait.RangeBounds.html" title="trait core::ops::range::RangeBounds">RangeBounds</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;&gt;(&amp;self, range: R) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;&amp;<a class="struct" href="struct.Slice.html" title="struct indexmap::set::Slice">Slice</a>&lt;T&gt;&gt;</h4></section></summary><div class="docblock"><p>Returns a slice of values in the given range of indices.</p>
<p>Valid indices are <em>0 &lt;= index &lt; self.len()</em></p>
<p>Computes in <strong>O(1)</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.first" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#884-886">source</a><h4 class="code-header">pub fn <a href="#method.first" class="fn">first</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a>&gt;</h4></section></summary><div class="docblock"><p>Get the first value</p>
<p>Computes in <strong>O(1)</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.last" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#891-893">source</a><h4 class="code-header">pub fn <a href="#method.last" class="fn">last</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a>&gt;</h4></section></summary><div class="docblock"><p>Get the last value</p>
<p>Computes in <strong>O(1)</strong> time.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.swap_remove_index" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#904-906">source</a><h4 class="code-header">pub fn <a href="#method.swap_remove_index" class="fn">swap_remove_index</a>(&amp;mut self, index: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;T&gt;</h4></section></summary><div class="docblock"><p>Remove the value by index</p>
<p>Valid indices are <em>0 &lt;= index &lt; self.len()</em></p>
<p>Like <a href="https://doc.rust-lang.org/1.76.0/alloc/vec/struct.Vec.html#method.swap_remove" title="method alloc::vec::Vec::swap_remove"><code>Vec::swap_remove</code></a>, the value is removed by swapping it with the
last element of the set and popping it off. <strong>This perturbs
the position of what used to be the last element!</strong></p>
<p>Computes in <strong>O(1)</strong> time (average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.shift_remove_index" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#917-919">source</a><h4 class="code-header">pub fn <a href="#method.shift_remove_index" class="fn">shift_remove_index</a>(&amp;mut self, index: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;T&gt;</h4></section></summary><div class="docblock"><p>Remove the value by index</p>
<p>Valid indices are <em>0 &lt;= index &lt; self.len()</em></p>
<p>Like <a href="https://doc.rust-lang.org/1.76.0/alloc/vec/struct.Vec.html#method.remove" title="method alloc::vec::Vec::remove"><code>Vec::remove</code></a>, the value is removed by shifting all of the
elements that follow it, preserving their relative order.
<strong>This perturbs the index of all of those elements!</strong></p>
<p>Computes in <strong>O(n)</strong> time (average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.move_index" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#930-932">source</a><h4 class="code-header">pub fn <a href="#method.move_index" class="fn">move_index</a>(&amp;mut self, from: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, to: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>)</h4></section></summary><div class="docblock"><p>Moves the position of a value from one index to another
by shifting all other values in-between.</p>
<ul>
<li>If <code>from &lt; to</code>, the other values will shift down while the targeted value moves up.</li>
<li>If <code>from &gt; to</code>, the other values will shift up while the targeted value moves down.</li>
</ul>
<p><em><strong>Panics</strong></em> if <code>from</code> or <code>to</code> are out of bounds.</p>
<p>Computes in <strong>O(n)</strong> time (average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.swap_indices" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#939-941">source</a><h4 class="code-header">pub fn <a href="#method.swap_indices" class="fn">swap_indices</a>(&amp;mut self, a: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>, b: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>)</h4></section></summary><div class="docblock"><p>Swaps the position of two values in the set.</p>
<p><em><strong>Panics</strong></em> if <code>a</code> or <code>b</code> are out of bounds.</p>
<p>Computes in <strong>O(1)</strong> time (average).</p>
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IndexSet%3CT,+S%3E-4" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1069-1101">source</a><a href="#impl-IndexSet%3CT,+S%3E-4" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.is_disjoint" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#1075-1084">source</a><h4 class="code-header">pub fn <a href="#method.is_disjoint" class="fn">is_disjoint</a>&lt;S2&gt;(&amp;self, other: &amp;<a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S2&gt;) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a><div class="where">where
S2: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h4></section></summary><div class="docblock"><p>Returns <code>true</code> if <code>self</code> has no elements in common with <code>other</code>.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.is_subset" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#1087-1092">source</a><h4 class="code-header">pub fn <a href="#method.is_subset" class="fn">is_subset</a>&lt;S2&gt;(&amp;self, other: &amp;<a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S2&gt;) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a><div class="where">where
S2: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h4></section></summary><div class="docblock"><p>Returns <code>true</code> if all elements of <code>self</code> are contained in <code>other</code>.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.is_superset" class="method"><a class="src rightside" href="../../src/indexmap/set.rs.html#1095-1100">source</a><h4 class="code-header">pub fn <a href="#method.is_superset" class="fn">is_superset</a>&lt;S2&gt;(&amp;self, other: &amp;<a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S2&gt;) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a><div class="where">where
S2: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h4></section></summary><div class="docblock"><p>Returns <code>true</code> if all elements of <code>other</code> are contained in <code>self</code>.</p>
</div></details></div></details></div><h2 id="trait-implementations" class="section-header">Trait Implementations<a href="#trait-implementations" class="anchor">§</a></h2><div id="trait-implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-BitAnd%3C%26IndexSet%3CT,+S2%3E%3E-for-%26IndexSet%3CT,+S1%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1103-1117">source</a><a href="#impl-BitAnd%3C%26IndexSet%3CT,+S2%3E%3E-for-%26IndexSet%3CT,+S1%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S1, S2&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/bit/trait.BitAnd.html" title="trait core::ops::bit::BitAnd">BitAnd</a>&lt;&amp;<a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S2&gt;&gt; for &amp;<a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S1&gt;<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,
S1: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/default/trait.Default.html" title="trait core::default::Default">Default</a>,
S2: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.bitand" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1114-1116">source</a><a href="#method.bitand" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/bit/trait.BitAnd.html#tymethod.bitand" class="fn">bitand</a>(self, other: &amp;<a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S2&gt;) -&gt; Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/ops/bit/trait.BitAnd.html#associatedtype.Output" title="type core::ops::bit::BitAnd::Output">Output</a></h4></section></summary><div class="docblock"><p>Returns the set intersection, cloned into a new set.</p>
<p>Values are collected in the same order that they appear in <code>self</code>.</p>
</div></details><details class="toggle" open><summary><section id="associatedtype.Output-2" class="associatedtype trait-impl"><a href="#associatedtype.Output-2" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/ops/bit/trait.BitAnd.html#associatedtype.Output" class="associatedtype">Output</a> = <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S1&gt;</h4></section></summary><div class='docblock'>The resulting type after applying the <code>&amp;</code> operator.</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-BitOr%3C%26IndexSet%3CT,+S2%3E%3E-for-%26IndexSet%3CT,+S1%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1119-1134">source</a><a href="#impl-BitOr%3C%26IndexSet%3CT,+S2%3E%3E-for-%26IndexSet%3CT,+S1%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S1, S2&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/bit/trait.BitOr.html" title="trait core::ops::bit::BitOr">BitOr</a>&lt;&amp;<a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S2&gt;&gt; for &amp;<a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S1&gt;<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,
S1: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/default/trait.Default.html" title="trait core::default::Default">Default</a>,
S2: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.bitor" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1131-1133">source</a><a href="#method.bitor" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/bit/trait.BitOr.html#tymethod.bitor" class="fn">bitor</a>(self, other: &amp;<a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S2&gt;) -&gt; Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/ops/bit/trait.BitOr.html#associatedtype.Output" title="type core::ops::bit::BitOr::Output">Output</a></h4></section></summary><div class="docblock"><p>Returns the set union, cloned into a new set.</p>
<p>Values from <code>self</code> are collected in their original order, followed by
values that are unique to <code>other</code> in their original order.</p>
</div></details><details class="toggle" open><summary><section id="associatedtype.Output-9" class="associatedtype trait-impl"><a href="#associatedtype.Output-9" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/ops/bit/trait.BitOr.html#associatedtype.Output" class="associatedtype">Output</a> = <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S1&gt;</h4></section></summary><div class='docblock'>The resulting type after applying the <code>|</code> operator.</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-BitXor%3C%26IndexSet%3CT,+S2%3E%3E-for-%26IndexSet%3CT,+S1%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1136-1151">source</a><a href="#impl-BitXor%3C%26IndexSet%3CT,+S2%3E%3E-for-%26IndexSet%3CT,+S1%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S1, S2&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/bit/trait.BitXor.html" title="trait core::ops::bit::BitXor">BitXor</a>&lt;&amp;<a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S2&gt;&gt; for &amp;<a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S1&gt;<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,
S1: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/default/trait.Default.html" title="trait core::default::Default">Default</a>,
S2: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.bitxor" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1148-1150">source</a><a href="#method.bitxor" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/bit/trait.BitXor.html#tymethod.bitxor" class="fn">bitxor</a>(self, other: &amp;<a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S2&gt;) -&gt; Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/ops/bit/trait.BitXor.html#associatedtype.Output" title="type core::ops::bit::BitXor::Output">Output</a></h4></section></summary><div class="docblock"><p>Returns the set symmetric-difference, cloned into a new set.</p>
<p>Values from <code>self</code> are collected in their original order, followed by
values from <code>other</code> in their original order.</p>
</div></details><details class="toggle" open><summary><section id="associatedtype.Output-3" class="associatedtype trait-impl"><a href="#associatedtype.Output-3" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/ops/bit/trait.BitXor.html#associatedtype.Output" class="associatedtype">Output</a> = <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S1&gt;</h4></section></summary><div class='docblock'>The resulting type after applying the <code>^</code> operator.</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Clone-for-IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#90-104">source</a><a href="#impl-Clone-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.clone" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#95-99">source</a><a href="#method.clone" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html#tymethod.clone" class="fn">clone</a>(&amp;self) -&gt; Self</h4></section></summary><div class='docblock'>Returns a copy of the value. <a href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html#tymethod.clone">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.clone_from" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#101-103">source</a><a href="#method.clone_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html#method.clone_from" class="fn">clone_from</a>(&amp;mut self, other: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;Self</a>)</h4></section></summary><div class='docblock'>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html#method.clone_from">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Debug-for-IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#132-146">source</a><a href="#impl-Debug-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#137-139">source</a><a href="#method.fmt" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Debug.html#tymethod.fmt" class="fn">fmt</a>(&amp;self, f: &amp;mut <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>&lt;'_&gt;) -&gt; <a class="type" href="https://doc.rust-lang.org/1.76.0/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/1.76.0/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Default-for-IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1039-1049">source</a><a href="#impl-Default-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/default/trait.Default.html" title="trait core::default::Default">Default</a> for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;<div class="where">where
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/default/trait.Default.html" title="trait core::default::Default">Default</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.default" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1044-1048">source</a><a href="#method.default" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/default/trait.Default.html#tymethod.default" class="fn">default</a>() -&gt; Self</h4></section></summary><div class="docblock"><p>Return an empty <a href="struct.IndexSet.html" title="struct indexmap::set::IndexSet"><code>IndexSet</code></a></p>
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Extend%3C%26T%3E-for-IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1028-1037">source</a><a href="#impl-Extend%3C%26T%3E-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'a, T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html" title="trait core::iter::traits::collect::Extend">Extend</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;'a T</a>&gt; for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a> + 'a,
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.extend-1" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1033-1036">source</a><a href="#method.extend-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#tymethod.extend" class="fn">extend</a>&lt;I: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;'a T</a>&gt;&gt;(&amp;mut self, iterable: I)</h4></section></summary><div class='docblock'>Extends a collection with the contents of an iterator. <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#tymethod.extend">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.extend_one-1" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/iter/traits/collect.rs.html#376">source</a><a href="#method.extend_one-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#method.extend_one" class="fn">extend_one</a>(&amp;mut self, item: A)</h4></section></summary><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>extend_one</code>)</span></div></span><div class='docblock'>Extends a collection with exactly one element.</div></details><details class="toggle method-toggle" open><summary><section id="method.extend_reserve-1" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/iter/traits/collect.rs.html#384">source</a><a href="#method.extend_reserve-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#method.extend_reserve" class="fn">extend_reserve</a>(&amp;mut self, additional: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>)</h4></section></summary><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>extend_one</code>)</span></div></span><div class='docblock'>Reserves capacity in a collection for the given number of additional elements. <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#method.extend_reserve">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Extend%3CT%3E-for-IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1017-1026">source</a><a href="#impl-Extend%3CT%3E-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html" title="trait core::iter::traits::collect::Extend">Extend</a>&lt;T&gt; for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>,
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.extend" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1022-1025">source</a><a href="#method.extend" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#tymethod.extend" class="fn">extend</a>&lt;I: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = T&gt;&gt;(&amp;mut self, iterable: I)</h4></section></summary><div class='docblock'>Extends a collection with the contents of an iterator. <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#tymethod.extend">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.extend_one" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/iter/traits/collect.rs.html#376">source</a><a href="#method.extend_one" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#method.extend_one" class="fn">extend_one</a>(&amp;mut self, item: A)</h4></section></summary><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>extend_one</code>)</span></div></span><div class='docblock'>Extends a collection with exactly one element.</div></details><details class="toggle method-toggle" open><summary><section id="method.extend_reserve" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/iter/traits/collect.rs.html#384">source</a><a href="#method.extend_reserve" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#method.extend_reserve" class="fn">extend_reserve</a>(&amp;mut self, additional: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>)</h4></section></summary><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>extend_one</code>)</span></div></span><div class='docblock'>Reserves capacity in a collection for the given number of additional elements. <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.Extend.html#method.extend_reserve">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-From%3C%5BT;+N%5D%3E-for-IndexSet%3CT%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#999-1015">source</a><a href="#impl-From%3C%5BT;+N%5D%3E-for-IndexSet%3CT%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, const N: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.array.html">[T; N]</a>&gt; for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, <a class="struct" href="https://doc.rust-lang.org/1.76.0/std/hash/random/struct.RandomState.html" title="struct std::hash::random::RandomState">RandomState</a>&gt;<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1012-1014">source</a><a href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(arr: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.array.html">[T; N]</a>) -&gt; Self</h4></section></summary><div class="docblock"><h5 id="examples-3"><a href="#examples-3">Examples</a></h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>indexmap::IndexSet;
<span class="kw">let </span>set1 = IndexSet::from([<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>]);
<span class="kw">let </span>set2: IndexSet&lt;<span class="kw">_</span>&gt; = [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>].into();
<span class="macro">assert_eq!</span>(set1, set2);</code></pre></div>
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-FromIterator%3CT%3E-for-IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#984-995">source</a><a href="#impl-FromIterator%3CT%3E-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.FromIterator.html" title="trait core::iter::traits::collect::FromIterator">FromIterator</a>&lt;T&gt; for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>,
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/default/trait.Default.html" title="trait core::default::Default">Default</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from_iter" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#989-994">source</a><a href="#method.from_iter" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.FromIterator.html#tymethod.from_iter" class="fn">from_iter</a>&lt;I: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = T&gt;&gt;(iterable: I) -&gt; Self</h4></section></summary><div class='docblock'>Creates a value from an iterator. <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.FromIterator.html#tymethod.from_iter">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Index%3C(Bound%3Cusize%3E,+Bound%3Cusize%3E)%3E-for-IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set/slice.rs.html#283-291">source</a><a href="#impl-Index%3C(Bound%3Cusize%3E,+Bound%3Cusize%3E)%3E-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html" title="trait core::ops::index::Index">Index</a>&lt;(<a class="enum" href="https://doc.rust-lang.org/1.76.0/core/ops/range/enum.Bound.html" title="enum core::ops::range::Bound">Bound</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;, <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/ops/range/enum.Bound.html" title="enum core::ops::range::Bound">Bound</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;)&gt; for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;</h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Output-11" class="associatedtype trait-impl"><a href="#associatedtype.Output-11" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" class="associatedtype">Output</a> = <a class="struct" href="struct.Slice.html" title="struct indexmap::set::Slice">Slice</a>&lt;T&gt;</h4></section></summary><div class='docblock'>The returned type after indexing.</div></details><details class="toggle method-toggle" open><summary><section id="method.index-7" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set/slice.rs.html#283-291">source</a><a href="#method.index-7" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index" class="fn">index</a>(&amp;self, range: (<a class="enum" href="https://doc.rust-lang.org/1.76.0/core/ops/range/enum.Bound.html" title="enum core::ops::range::Bound">Bound</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;, <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/ops/range/enum.Bound.html" title="enum core::ops::range::Bound">Bound</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;)) -&gt; &amp;Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" title="type core::ops::index::Index::Output">Output</a></h4></section></summary><div class='docblock'>Performs the indexing (<code>container[index]</code>) operation. <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Index%3CRange%3Cusize%3E%3E-for-IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set/slice.rs.html#283-291">source</a><a href="#impl-Index%3CRange%3Cusize%3E%3E-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html" title="trait core::ops::index::Index">Index</a>&lt;<a class="struct" href="https://doc.rust-lang.org/1.76.0/core/ops/range/struct.Range.html" title="struct core::ops::range::Range">Range</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;&gt; for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;</h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Output-8" class="associatedtype trait-impl"><a href="#associatedtype.Output-8" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" class="associatedtype">Output</a> = <a class="struct" href="struct.Slice.html" title="struct indexmap::set::Slice">Slice</a>&lt;T&gt;</h4></section></summary><div class='docblock'>The returned type after indexing.</div></details><details class="toggle method-toggle" open><summary><section id="method.index-5" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set/slice.rs.html#283-291">source</a><a href="#method.index-5" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index" class="fn">index</a>(&amp;self, range: <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/ops/range/struct.Range.html" title="struct core::ops::range::Range">Range</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;) -&gt; &amp;Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" title="type core::ops::index::Index::Output">Output</a></h4></section></summary><div class='docblock'>Performs the indexing (<code>container[index]</code>) operation. <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Index%3CRangeFrom%3Cusize%3E%3E-for-IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set/slice.rs.html#283-291">source</a><a href="#impl-Index%3CRangeFrom%3Cusize%3E%3E-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html" title="trait core::ops::index::Index">Index</a>&lt;<a class="struct" href="https://doc.rust-lang.org/1.76.0/core/ops/range/struct.RangeFrom.html" title="struct core::ops::range::RangeFrom">RangeFrom</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;&gt; for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;</h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Output-1" class="associatedtype trait-impl"><a href="#associatedtype.Output-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" class="associatedtype">Output</a> = <a class="struct" href="struct.Slice.html" title="struct indexmap::set::Slice">Slice</a>&lt;T&gt;</h4></section></summary><div class='docblock'>The returned type after indexing.</div></details><details class="toggle method-toggle" open><summary><section id="method.index" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set/slice.rs.html#283-291">source</a><a href="#method.index" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index" class="fn">index</a>(&amp;self, range: <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/ops/range/struct.RangeFrom.html" title="struct core::ops::range::RangeFrom">RangeFrom</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;) -&gt; &amp;Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" title="type core::ops::index::Index::Output">Output</a></h4></section></summary><div class='docblock'>Performs the indexing (<code>container[index]</code>) operation. <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Index%3CRangeFull%3E-for-IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set/slice.rs.html#283-291">source</a><a href="#impl-Index%3CRangeFull%3E-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html" title="trait core::ops::index::Index">Index</a>&lt;<a class="struct" href="https://doc.rust-lang.org/1.76.0/core/ops/range/struct.RangeFull.html" title="struct core::ops::range::RangeFull">RangeFull</a>&gt; for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;</h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Output-7" class="associatedtype trait-impl"><a href="#associatedtype.Output-7" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" class="associatedtype">Output</a> = <a class="struct" href="struct.Slice.html" title="struct indexmap::set::Slice">Slice</a>&lt;T&gt;</h4></section></summary><div class='docblock'>The returned type after indexing.</div></details><details class="toggle method-toggle" open><summary><section id="method.index-4" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set/slice.rs.html#283-291">source</a><a href="#method.index-4" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index" class="fn">index</a>(&amp;self, range: <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/ops/range/struct.RangeFull.html" title="struct core::ops::range::RangeFull">RangeFull</a>) -&gt; &amp;Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" title="type core::ops::index::Index::Output">Output</a></h4></section></summary><div class='docblock'>Performs the indexing (<code>container[index]</code>) operation. <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Index%3CRangeInclusive%3Cusize%3E%3E-for-IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set/slice.rs.html#283-291">source</a><a href="#impl-Index%3CRangeInclusive%3Cusize%3E%3E-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html" title="trait core::ops::index::Index">Index</a>&lt;<a class="struct" href="https://doc.rust-lang.org/1.76.0/core/ops/range/struct.RangeInclusive.html" title="struct core::ops::range::RangeInclusive">RangeInclusive</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;&gt; for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;</h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Output-4" class="associatedtype trait-impl"><a href="#associatedtype.Output-4" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" class="associatedtype">Output</a> = <a class="struct" href="struct.Slice.html" title="struct indexmap::set::Slice">Slice</a>&lt;T&gt;</h4></section></summary><div class='docblock'>The returned type after indexing.</div></details><details class="toggle method-toggle" open><summary><section id="method.index-1" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set/slice.rs.html#283-291">source</a><a href="#method.index-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index" class="fn">index</a>(&amp;self, range: <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/ops/range/struct.RangeInclusive.html" title="struct core::ops::range::RangeInclusive">RangeInclusive</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;) -&gt; &amp;Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" title="type core::ops::index::Index::Output">Output</a></h4></section></summary><div class='docblock'>Performs the indexing (<code>container[index]</code>) operation. <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Index%3CRangeTo%3Cusize%3E%3E-for-IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set/slice.rs.html#283-291">source</a><a href="#impl-Index%3CRangeTo%3Cusize%3E%3E-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html" title="trait core::ops::index::Index">Index</a>&lt;<a class="struct" href="https://doc.rust-lang.org/1.76.0/core/ops/range/struct.RangeTo.html" title="struct core::ops::range::RangeTo">RangeTo</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;&gt; for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;</h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Output-6" class="associatedtype trait-impl"><a href="#associatedtype.Output-6" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" class="associatedtype">Output</a> = <a class="struct" href="struct.Slice.html" title="struct indexmap::set::Slice">Slice</a>&lt;T&gt;</h4></section></summary><div class='docblock'>The returned type after indexing.</div></details><details class="toggle method-toggle" open><summary><section id="method.index-3" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set/slice.rs.html#283-291">source</a><a href="#method.index-3" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index" class="fn">index</a>(&amp;self, range: <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/ops/range/struct.RangeTo.html" title="struct core::ops::range::RangeTo">RangeTo</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;) -&gt; &amp;Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" title="type core::ops::index::Index::Output">Output</a></h4></section></summary><div class='docblock'>Performs the indexing (<code>container[index]</code>) operation. <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Index%3CRangeToInclusive%3Cusize%3E%3E-for-IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set/slice.rs.html#283-291">source</a><a href="#impl-Index%3CRangeToInclusive%3Cusize%3E%3E-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html" title="trait core::ops::index::Index">Index</a>&lt;<a class="struct" href="https://doc.rust-lang.org/1.76.0/core/ops/range/struct.RangeToInclusive.html" title="struct core::ops::range::RangeToInclusive">RangeToInclusive</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;&gt; for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;</h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Output-10" class="associatedtype trait-impl"><a href="#associatedtype.Output-10" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" class="associatedtype">Output</a> = <a class="struct" href="struct.Slice.html" title="struct indexmap::set::Slice">Slice</a>&lt;T&gt;</h4></section></summary><div class='docblock'>The returned type after indexing.</div></details><details class="toggle method-toggle" open><summary><section id="method.index-6" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set/slice.rs.html#283-291">source</a><a href="#method.index-6" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index" class="fn">index</a>(&amp;self, range: <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/ops/range/struct.RangeToInclusive.html" title="struct core::ops::range::RangeToInclusive">RangeToInclusive</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt;) -&gt; &amp;Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" title="type core::ops::index::Index::Output">Output</a></h4></section></summary><div class='docblock'>Performs the indexing (<code>container[index]</code>) operation. <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Index%3Cusize%3E-for-IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#972-982">source</a><a href="#impl-Index%3Cusize%3E-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html" title="trait core::ops::index::Index">Index</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>&gt; for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;</h3></section></summary><div class="docblock"><p>Access <a href="struct.IndexSet.html" title="struct indexmap::set::IndexSet"><code>IndexSet</code></a> values at indexed positions.</p>
<h4 id="examples-2"><a href="#examples-2">Examples</a></h4>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>indexmap::IndexSet;
<span class="kw">let </span><span class="kw-2">mut </span>set = IndexSet::new();
<span class="kw">for </span>word <span class="kw">in </span><span class="string">"Lorem ipsum dolor sit amet"</span>.split_whitespace() {
set.insert(word.to_string());
}
<span class="macro">assert_eq!</span>(set[<span class="number">0</span>], <span class="string">"Lorem"</span>);
<span class="macro">assert_eq!</span>(set[<span class="number">1</span>], <span class="string">"ipsum"</span>);
set.reverse();
<span class="macro">assert_eq!</span>(set[<span class="number">0</span>], <span class="string">"amet"</span>);
<span class="macro">assert_eq!</span>(set[<span class="number">1</span>], <span class="string">"sit"</span>);
set.sort();
<span class="macro">assert_eq!</span>(set[<span class="number">0</span>], <span class="string">"Lorem"</span>);
<span class="macro">assert_eq!</span>(set[<span class="number">1</span>], <span class="string">"amet"</span>);</code></pre></div>
<div class="example-wrap should_panic"><a href="#" class="tooltip" title="This example panics">ⓘ</a><pre class="rust rust-example-rendered"><code><span class="kw">use </span>indexmap::IndexSet;
<span class="kw">let </span><span class="kw-2">mut </span>set = IndexSet::new();
set.insert(<span class="string">"foo"</span>);
<span class="macro">println!</span>(<span class="string">"{:?}"</span>, set[<span class="number">10</span>]); <span class="comment">// panics!</span></code></pre></div>
</div><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.index-2" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#978-981">source</a><a href="#method.index-2" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#tymethod.index" class="fn">index</a>(&amp;self, index: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.usize.html">usize</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a></h4></section></summary><div class="docblock"><p>Returns a reference to the value at the supplied <code>index</code>.</p>
<p><em><strong>Panics</strong></em> if <code>index</code> is out of bounds.</p>
</div></details><details class="toggle" open><summary><section id="associatedtype.Output-5" class="associatedtype trait-impl"><a href="#associatedtype.Output-5" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/ops/index/trait.Index.html#associatedtype.Output" class="associatedtype">Output</a> = T</h4></section></summary><div class='docblock'>The returned type after indexing.</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IntoIterator-for-%26IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set/iter.rs.html#10-17">source</a><a href="#impl-IntoIterator-for-%26IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'a, T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a> for &amp;'a <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;</h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Item" class="associatedtype trait-impl"><a href="#associatedtype.Item" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" class="associatedtype">Item</a> = <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;'a T</a></h4></section></summary><div class='docblock'>The type of the elements being iterated over.</div></details><details class="toggle" open><summary><section id="associatedtype.IntoIter" class="associatedtype trait-impl"><a href="#associatedtype.IntoIter" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" class="associatedtype">IntoIter</a> = <a class="struct" href="struct.Iter.html" title="struct indexmap::set::Iter">Iter</a>&lt;'a, T&gt;</h4></section></summary><div class='docblock'>Which kind of iterator are we turning this into?</div></details><details class="toggle method-toggle" open><summary><section id="method.into_iter" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set/iter.rs.html#14-16">source</a><a href="#method.into_iter" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter" class="fn">into_iter</a>(self) -&gt; Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" title="type core::iter::traits::collect::IntoIterator::IntoIter">IntoIter</a></h4></section></summary><div class='docblock'>Creates an iterator from a value. <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IntoIterator-for-IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set/iter.rs.html#19-26">source</a><a href="#impl-IntoIterator-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a> for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;</h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Item-1" class="associatedtype trait-impl"><a href="#associatedtype.Item-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" class="associatedtype">Item</a> = T</h4></section></summary><div class='docblock'>The type of the elements being iterated over.</div></details><details class="toggle" open><summary><section id="associatedtype.IntoIter-1" class="associatedtype trait-impl"><a href="#associatedtype.IntoIter-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" class="associatedtype">IntoIter</a> = <a class="struct" href="struct.IntoIter.html" title="struct indexmap::set::IntoIter">IntoIter</a>&lt;T&gt;</h4></section></summary><div class='docblock'>Which kind of iterator are we turning this into?</div></details><details class="toggle method-toggle" open><summary><section id="method.into_iter-1" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set/iter.rs.html#23-25">source</a><a href="#method.into_iter-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter" class="fn">into_iter</a>(self) -&gt; Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" title="type core::iter::traits::collect::IntoIterator::IntoIter">IntoIter</a></h4></section></summary><div class='docblock'>Creates an iterator from a value. <a href="https://doc.rust-lang.org/1.76.0/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-PartialEq%3CIndexSet%3CT,+S2%3E%3E-for-IndexSet%3CT,+S1%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1051-1060">source</a><a href="#impl-PartialEq%3CIndexSet%3CT,+S2%3E%3E-for-IndexSet%3CT,+S1%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S1, S2&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a>&lt;<a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S2&gt;&gt; for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S1&gt;<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>,
S1: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,
S2: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.eq" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1057-1059">source</a><a href="#method.eq" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.PartialEq.html#tymethod.eq" class="fn">eq</a>(&amp;self, other: &amp;<a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S2&gt;) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used
by <code>==</code>.</div></details><details class="toggle method-toggle" open><summary><section id="method.ne" class="method trait-impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.76.0/src/core/cmp.rs.html#242">source</a></span><a href="#method.ne" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.PartialEq.html#method.ne" class="fn">ne</a>(&amp;self, other: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;Rhs</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>This method tests for <code>!=</code>. The default implementation is almost always
sufficient, and should not be overridden without very good reason.</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Sub%3C%26IndexSet%3CT,+S2%3E%3E-for-%26IndexSet%3CT,+S1%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1153-1167">source</a><a href="#impl-Sub%3C%26IndexSet%3CT,+S2%3E%3E-for-%26IndexSet%3CT,+S1%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S1, S2&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/ops/arith/trait.Sub.html" title="trait core::ops::arith::Sub">Sub</a>&lt;&amp;<a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S2&gt;&gt; for &amp;<a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S1&gt;<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,
S1: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/default/trait.Default.html" title="trait core::default::Default">Default</a>,
S2: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.sub" class="method trait-impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1164-1166">source</a><a href="#method.sub" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/ops/arith/trait.Sub.html#tymethod.sub" class="fn">sub</a>(self, other: &amp;<a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S2&gt;) -&gt; Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/ops/arith/trait.Sub.html#associatedtype.Output" title="type core::ops::arith::Sub::Output">Output</a></h4></section></summary><div class="docblock"><p>Returns the set difference, cloned into a new set.</p>
<p>Values are collected in the same order that they appear in <code>self</code>.</p>
</div></details><details class="toggle" open><summary><section id="associatedtype.Output" class="associatedtype trait-impl"><a href="#associatedtype.Output" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/ops/arith/trait.Sub.html#associatedtype.Output" class="associatedtype">Output</a> = <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S1&gt;</h4></section></summary><div class='docblock'>The resulting type after applying the <code>-</code> operator.</div></details></div></details><section id="impl-Eq-for-IndexSet%3CT,+S%3E" class="impl"><a class="src rightside" href="../../src/indexmap/set.rs.html#1062-1067">source</a><a href="#impl-Eq-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></div><h2 id="synthetic-implementations" class="section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor">§</a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-IndexSet%3CT,+S%3E" class="impl"><a href="#impl-RefUnwindSafe-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;<div class="where">where
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,</div></h3></section><section id="impl-Send-for-IndexSet%3CT,+S%3E" class="impl"><a href="#impl-Send-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;<div class="where">where
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,</div></h3></section><section id="impl-Sync-for-IndexSet%3CT,+S%3E" class="impl"><a href="#impl-Sync-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;<div class="where">where
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,</div></h3></section><section id="impl-Unpin-for-IndexSet%3CT,+S%3E" class="impl"><a href="#impl-Unpin-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;<div class="where">where
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,</div></h3></section><section id="impl-UnwindSafe-for-IndexSet%3CT,+S%3E" class="impl"><a href="#impl-UnwindSafe-for-IndexSet%3CT,+S%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, S&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.IndexSet.html" title="struct indexmap::set::IndexSet">IndexSet</a>&lt;T, S&gt;<div class="where">where
S: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,</div></h3></section></div><h2 id="blanket-implementations" class="section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor">§</a></h2><div id="blanket-implementations-list"><details class="toggle implementors-toggle"><summary><section id="impl-Any-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/any.rs.html#140">source</a><a href="#impl-Any-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<div class="where">where
T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/any.rs.html#141">source</a><a href="#method.type_id" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/any/trait.Any.html#tymethod.type_id" class="fn">type_id</a>(&amp;self) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.76.0/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/1.76.0/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#208">source</a><a href="#impl-Borrow%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;T&gt; for T<div class="where">where
T: ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#210">source</a><a href="#method.borrow" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html#tymethod.borrow" class="fn">borrow</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;T</a></h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#216">source</a><a href="#impl-BorrowMut%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a>&lt;T&gt; for T<div class="where">where
T: ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/borrow.rs.html#217">source</a><a href="#method.borrow_mut" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fn">borrow_mut</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;mut T</a></h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Equivalent%3CK%3E-for-Q" class="impl"><a class="src rightside" href="../../src/hashbrown/lib.rs.html#165-168">source</a><a href="#impl-Equivalent%3CK%3E-for-Q" class="anchor">§</a><h3 class="code-header">impl&lt;Q, K&gt; <a class="trait" href="../../hashbrown/trait.Equivalent.html" title="trait hashbrown::Equivalent">Equivalent</a>&lt;K&gt; for Q<div class="where">where
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,
K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;Q&gt; + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.equivalent" class="method trait-impl"><a class="src rightside" href="../../src/hashbrown/lib.rs.html#170">source</a><a href="#method.equivalent" class="anchor">§</a><h4 class="code-header">fn <a href="../../hashbrown/trait.Equivalent.html#tymethod.equivalent" class="fn">equivalent</a>(&amp;self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;K</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>Checks if this value is equivalent to the given key. <a href="../../hashbrown/trait.Equivalent.html#tymethod.equivalent">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Equivalent%3CK%3E-for-Q-1" class="impl"><a class="src rightside" href="../../src/equivalent/lib.rs.html#82-85">source</a><a href="#impl-Equivalent%3CK%3E-for-Q-1" class="anchor">§</a><h3 class="code-header">impl&lt;Q, K&gt; <a class="trait" href="../trait.Equivalent.html" title="trait indexmap::Equivalent">Equivalent</a>&lt;K&gt; for Q<div class="where">where
Q: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,
K: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;Q&gt; + ?<a class="trait" href="https://doc.rust-lang.org/1.76.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.equivalent-1" class="method trait-impl"><a class="src rightside" href="../../src/equivalent/lib.rs.html#88">source</a><a href="#method.equivalent-1" class="anchor">§</a><h4 class="code-header">fn <a href="../trait.Equivalent.html#tymethod.equivalent" class="fn">equivalent</a>(&amp;self, key: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;K</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>Compare self to <code>key</code> and return <code>true</code> if they are equal.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#763">source</a><a href="#impl-From%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from-1" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#766">source</a><a href="#method.from-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(t: T) -&gt; T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#747-749">source</a><a href="#impl-Into%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#756">source</a><a href="#method.into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html#tymethod.into" class="fn">into</a>(self) -&gt; U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
<p>That is, this conversion is whatever the implementation of
<code><a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; for U</code> chooses to do.</p>
</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-ToOwned-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/alloc/borrow.rs.html#83-85">source</a><a href="#impl-ToOwned-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html" title="trait alloc::borrow::ToOwned">ToOwned</a> for T<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Owned" class="associatedtype trait-impl"><a href="#associatedtype.Owned" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html#associatedtype.Owned" class="associatedtype">Owned</a> = T</h4></section></summary><div class='docblock'>The resulting type after obtaining ownership.</div></details><details class="toggle method-toggle" open><summary><section id="method.to_owned" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/alloc/borrow.rs.html#88">source</a><a href="#method.to_owned" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned" class="fn">to_owned</a>(&amp;self) -&gt; T</h4></section></summary><div class='docblock'>Creates owned data from borrowed data, usually by cloning. <a href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.clone_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/alloc/borrow.rs.html#92">source</a><a href="#method.clone_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html#method.clone_into" class="fn">clone_into</a>(&amp;self, target: <a class="primitive" href="https://doc.rust-lang.org/1.76.0/std/primitive.reference.html">&amp;mut T</a>)</h4></section></summary><div class='docblock'>Uses borrowed data to replace owned data, usually by cloning. <a href="https://doc.rust-lang.org/1.76.0/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#803-805">source</a><a href="#impl-TryFrom%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl"><a href="#associatedtype.Error" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#810">source</a><a href="#method.try_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#tymethod.try_from" class="fn">try_from</a>(value: U) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, &lt;T as <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#788-790">source</a><a href="#impl-TryInto%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl"><a href="#associatedtype.Error-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = &lt;U as <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.76.0/src/core/convert/mod.rs.html#795">source</a><a href="#method.try_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryInto.html#tymethod.try_into" class="fn">try_into</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.76.0/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;U, &lt;U as <a class="trait" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/1.76.0/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div><script type="text/json" id="notable-traits-data">{"Difference<'a, T, S2>":"<h3>Notable traits for <code><a class=\"struct\" href=\"struct.Difference.html\" title=\"struct indexmap::set::Difference\">Difference</a>&lt;'a, T, S&gt;</code></h3><pre><code><div class=\"where\">impl&lt;'a, T, S&gt; <a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/iter/traits/iterator/trait.Iterator.html\" title=\"trait core::iter::traits::iterator::Iterator\">Iterator</a> for <a class=\"struct\" href=\"struct.Difference.html\" title=\"struct indexmap::set::Difference\">Difference</a>&lt;'a, T, S&gt;<div class=\"where\">where\n T: <a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html\" title=\"trait core::cmp::Eq\">Eq</a> + <a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html\" title=\"trait core::hash::Hash\">Hash</a>,\n S: <a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html\" title=\"trait core::hash::BuildHasher\">BuildHasher</a>,</div></div><div class=\"where\"> type <a href=\"https://doc.rust-lang.org/1.76.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item\" class=\"associatedtype\">Item</a> = <a class=\"primitive\" href=\"https://doc.rust-lang.org/1.76.0/std/primitive.reference.html\">&amp;'a T</a>;</div>","Drain<'_, T>":"<h3>Notable traits for <code><a class=\"struct\" href=\"struct.Drain.html\" title=\"struct indexmap::set::Drain\">Drain</a>&lt;'_, T&gt;</code></h3><pre><code><div class=\"where\">impl&lt;T&gt; 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<a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/iter/traits/iterator/trait.Iterator.html\" title=\"trait core::iter::traits::iterator::Iterator\">Iterator</a> for <a class=\"struct\" href=\"struct.IntoIter.html\" title=\"struct indexmap::set::IntoIter\">IntoIter</a>&lt;T&gt;</div><div class=\"where\"> type <a href=\"https://doc.rust-lang.org/1.76.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item\" class=\"associatedtype\">Item</a> = T;</div>","Iter<'_, T>":"<h3>Notable traits for <code><a class=\"struct\" href=\"struct.Iter.html\" title=\"struct indexmap::set::Iter\">Iter</a>&lt;'a, T&gt;</code></h3><pre><code><div class=\"where\">impl&lt;'a, T&gt; <a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/iter/traits/iterator/trait.Iterator.html\" title=\"trait core::iter::traits::iterator::Iterator\">Iterator</a> for <a class=\"struct\" href=\"struct.Iter.html\" title=\"struct indexmap::set::Iter\">Iter</a>&lt;'a, T&gt;</div><div class=\"where\"> type <a href=\"https://doc.rust-lang.org/1.76.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item\" class=\"associatedtype\">Item</a> = <a class=\"primitive\" href=\"https://doc.rust-lang.org/1.76.0/std/primitive.reference.html\">&amp;'a T</a>;</div>","Splice<'_, I::IntoIter, T, S>":"<h3>Notable traits for <code><a class=\"struct\" href=\"struct.Splice.html\" title=\"struct indexmap::set::Splice\">Splice</a>&lt;'_, I, T, S&gt;</code></h3><pre><code><div class=\"where\">impl&lt;I, T, S&gt; 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<a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/iter/traits/iterator/trait.Iterator.html\" title=\"trait core::iter::traits::iterator::Iterator\">Iterator</a> for <a class=\"struct\" href=\"struct.SymmetricDifference.html\" title=\"struct indexmap::set::SymmetricDifference\">SymmetricDifference</a>&lt;'a, T, S1, S2&gt;<div class=\"where\">where\n T: <a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html\" title=\"trait core::cmp::Eq\">Eq</a> + <a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html\" title=\"trait core::hash::Hash\">Hash</a>,\n S1: <a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html\" title=\"trait core::hash::BuildHasher\">BuildHasher</a>,\n S2: <a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html\" title=\"trait core::hash::BuildHasher\">BuildHasher</a>,</div></div><div class=\"where\"> type <a href=\"https://doc.rust-lang.org/1.76.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item\" class=\"associatedtype\">Item</a> = <a class=\"primitive\" href=\"https://doc.rust-lang.org/1.76.0/std/primitive.reference.html\">&amp;'a T</a>;</div>","Union<'a, T, S>":"<h3>Notable traits for <code><a class=\"struct\" href=\"struct.Union.html\" title=\"struct indexmap::set::Union\">Union</a>&lt;'a, T, S&gt;</code></h3><pre><code><div class=\"where\">impl&lt;'a, T, S&gt; <a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/iter/traits/iterator/trait.Iterator.html\" title=\"trait core::iter::traits::iterator::Iterator\">Iterator</a> for <a class=\"struct\" href=\"struct.Union.html\" title=\"struct indexmap::set::Union\">Union</a>&lt;'a, T, S&gt;<div class=\"where\">where\n T: <a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/cmp/trait.Eq.html\" title=\"trait core::cmp::Eq\">Eq</a> + <a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/hash/trait.Hash.html\" title=\"trait core::hash::Hash\">Hash</a>,\n S: <a class=\"trait\" href=\"https://doc.rust-lang.org/1.76.0/core/hash/trait.BuildHasher.html\" title=\"trait core::hash::BuildHasher\">BuildHasher</a>,</div></div><div class=\"where\"> type <a href=\"https://doc.rust-lang.org/1.76.0/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item\" class=\"associatedtype\">Item</a> = <a class=\"primitive\" href=\"https://doc.rust-lang.org/1.76.0/std/primitive.reference.html\">&amp;'a T</a>;</div>"}</script></section></div></main></body></html>
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