mirror of
https://github.com/OMGeeky/google-apis-rs.git
synced 2026-01-27 20:30:52 +01:00
611 lines
147 KiB
HTML
611 lines
147 KiB
HTML
<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `HashSet` struct in crate `hashbrown`."><meta name="keywords" content="rust, rustlang, rust-lang, HashSet"><title>hashbrown::HashSet - Rust</title><link rel="stylesheet" type="text/css" href="../normalize.css"><link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../ayu.css" disabled ><script id="default-settings"></script><script src="../storage.js"></script><noscript><link rel="stylesheet" href="../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../favicon.svg">
|
||
<link rel="alternate icon" type="image/png" href="../favicon-16x16.png">
|
||
<link rel="alternate icon" type="image/png" href="../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../down-arrow.svg");}</style></head><body class="rustdoc struct"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../hashbrown/index.html'><div class='logo-container rust-logo'><img src='../rust-logo.png' alt='logo'></div></a><p class="location">Struct HashSet</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#implementations">Methods</a><div class="sidebar-links"><a href="#method.capacity">capacity</a><a href="#method.clear">clear</a><a href="#method.contains">contains</a><a href="#method.difference">difference</a><a href="#method.drain">drain</a><a href="#method.drain_filter">drain_filter</a><a href="#method.get">get</a><a href="#method.get_or_insert">get_or_insert</a><a href="#method.get_or_insert_owned">get_or_insert_owned</a><a href="#method.get_or_insert_with">get_or_insert_with</a><a href="#method.hasher">hasher</a><a href="#method.insert">insert</a><a href="#method.intersection">intersection</a><a href="#method.is_disjoint">is_disjoint</a><a href="#method.is_empty">is_empty</a><a href="#method.is_subset">is_subset</a><a href="#method.is_superset">is_superset</a><a href="#method.iter">iter</a><a href="#method.len">len</a><a href="#method.remove">remove</a><a href="#method.replace">replace</a><a href="#method.reserve">reserve</a><a href="#method.retain">retain</a><a href="#method.shrink_to">shrink_to</a><a href="#method.shrink_to_fit">shrink_to_fit</a><a href="#method.symmetric_difference">symmetric_difference</a><a href="#method.take">take</a><a href="#method.try_reserve">try_reserve</a><a href="#method.union">union</a><a href="#method.with_capacity_and_hasher">with_capacity_and_hasher</a><a href="#method.with_hasher">with_hasher</a></div><a class="sidebar-title" href="#trait-implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-BitAnd%3C%26%27_%20HashSet%3CT%2C%20S%3E%3E">BitAnd<&'_ HashSet<T, S>></a><a href="#impl-BitOr%3C%26%27_%20HashSet%3CT%2C%20S%3E%3E">BitOr<&'_ HashSet<T, S>></a><a href="#impl-BitXor%3C%26%27_%20HashSet%3CT%2C%20S%3E%3E">BitXor<&'_ HashSet<T, S>></a><a href="#impl-Clone">Clone</a><a href="#impl-Debug">Debug</a><a href="#impl-Default">Default</a><a href="#impl-Eq">Eq</a><a href="#impl-Extend%3C%26%27a%20T%3E">Extend<&'a T></a><a href="#impl-Extend%3CT%3E">Extend<T></a><a href="#impl-FromIterator%3CT%3E">FromIterator<T></a><a href="#impl-IntoIterator">IntoIterator</a><a href="#impl-PartialEq%3CHashSet%3CT%2C%20S%3E%3E">PartialEq<HashSet<T, S>></a><a href="#impl-Sub%3C%26%27_%20HashSet%3CT%2C%20S%3E%3E">Sub<&'_ HashSet<T, S>></a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-Send">Send</a><a href="#impl-Sync">Sync</a><a href="#impl-Unpin">Unpin</a></div><a class="sidebar-title" href="#blanket-implementations">Blanket Implementations</a><div class="sidebar-links"><a href="#impl-Any">Any</a><a href="#impl-Borrow%3CT%3E">Borrow<T></a><a href="#impl-BorrowMut%3CT%3E">BorrowMut<T></a><a href="#impl-From%3CT%3E">From<T></a><a href="#impl-Into%3CU%3E">Into<U></a><a href="#impl-ToOwned">ToOwned</a><a href="#impl-TryFrom%3CU%3E">TryFrom<U></a><a href="#impl-TryInto%3CU%3E">TryInto<U></a></div></div><p class="location"><a href="index.html">hashbrown</a></p><div id="sidebar-vars" data-name="HashSet" data-ty="struct" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><script src="../theme.js"></script><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
|
||
<a id="settings-menu" href="../settings.html"><img src="../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Struct <a href="index.html">hashbrown</a>::<wbr><a class="struct" href="">HashSet</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../src/hashbrown/set.rs.html#114-116" title="goto source code">[src]</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class="rust struct">pub struct HashSet<T, S = <a class="enum" href="../hashbrown/hash_map/enum.DefaultHashBuilder.html" title="enum hashbrown::hash_map::DefaultHashBuilder">DefaultHashBuilder</a>> { /* fields omitted */ }</pre></div><div class="docblock"><p>A hash set implemented as a <code>HashMap</code> where the value is <code>()</code>.</p>
|
||
<p>As with the <a href="struct.HashMap.html"><code>HashMap</code></a> type, a <code>HashSet</code> requires that the elements
|
||
implement the <a href="https://doc.rust-lang.org/std/cmp/trait.Eq.html"><code>Eq</code></a> and <a href="https://doc.rust-lang.org/std/hash/trait.Hash.html"><code>Hash</code></a> traits. This can frequently be achieved by
|
||
using <code>#[derive(PartialEq, Eq, Hash)]</code>. If you implement these yourself,
|
||
it is important that the following property holds:</p>
|
||
<pre><code class="language-text">k1 == k2 -> hash(k1) == hash(k2)
|
||
</code></pre>
|
||
<p>In other words, if two keys are equal, their hashes must be equal.</p>
|
||
<p>It is a logic error for an item to be modified in such a way that the
|
||
item's hash, as determined by the <a href="https://doc.rust-lang.org/std/hash/trait.Hash.html"><code>Hash</code></a> trait, or its equality, as
|
||
determined by the <a href="https://doc.rust-lang.org/std/cmp/trait.Eq.html"><code>Eq</code></a> trait, changes while it is in the set. This is
|
||
normally only possible through <a href="https://doc.rust-lang.org/std/cell/struct.Cell.html"><code>Cell</code></a>, <a href="https://doc.rust-lang.org/std/cell/struct.RefCell.html"><code>RefCell</code></a>, global state, I/O, or
|
||
unsafe code.</p>
|
||
<p>It is also a logic error for the <a href="https://doc.rust-lang.org/std/hash/trait.Hash.html"><code>Hash</code></a> implementation of a key to panic.
|
||
This is generally only possible if the trait is implemented manually. If a
|
||
panic does occur then the contents of the <code>HashSet</code> may become corrupted and
|
||
some items may be dropped from the table.</p>
|
||
<h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
<span class="comment">// Type inference lets us omit an explicit type signature (which</span>
|
||
<span class="comment">// would be `HashSet<String>` in this example).</span>
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">books</span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">new</span>();
|
||
|
||
<span class="comment">// Add some books.</span>
|
||
<span class="ident">books</span>.<span class="ident">insert</span>(<span class="string">"A Dance With Dragons"</span>.<span class="ident">to_string</span>());
|
||
<span class="ident">books</span>.<span class="ident">insert</span>(<span class="string">"To Kill a Mockingbird"</span>.<span class="ident">to_string</span>());
|
||
<span class="ident">books</span>.<span class="ident">insert</span>(<span class="string">"The Odyssey"</span>.<span class="ident">to_string</span>());
|
||
<span class="ident">books</span>.<span class="ident">insert</span>(<span class="string">"The Great Gatsby"</span>.<span class="ident">to_string</span>());
|
||
|
||
<span class="comment">// Check for a specific one.</span>
|
||
<span class="kw">if</span> <span class="op">!</span><span class="ident">books</span>.<span class="ident">contains</span>(<span class="string">"The Winds of Winter"</span>) {
|
||
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"We have {} books, but The Winds of Winter ain't one."</span>,
|
||
<span class="ident">books</span>.<span class="ident">len</span>());
|
||
}
|
||
|
||
<span class="comment">// Remove a book.</span>
|
||
<span class="ident">books</span>.<span class="ident">remove</span>(<span class="string">"The Odyssey"</span>);
|
||
|
||
<span class="comment">// Iterate over everything.</span>
|
||
<span class="kw">for</span> <span class="ident">book</span> <span class="kw">in</span> <span class="kw-2">&</span><span class="ident">books</span> {
|
||
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"{}"</span>, <span class="ident">book</span>);
|
||
}</pre></div>
|
||
<p>The easiest way to use <code>HashSet</code> with a custom type is to derive
|
||
<a href="https://doc.rust-lang.org/std/cmp/trait.Eq.html"><code>Eq</code></a> and <a href="https://doc.rust-lang.org/std/hash/trait.Hash.html"><code>Hash</code></a>. We must also derive <a href="https://doc.rust-lang.org/std/cmp/trait.PartialEq.html"><code>PartialEq</code></a>, this will in the
|
||
future be implied by <a href="https://doc.rust-lang.org/std/cmp/trait.Eq.html"><code>Eq</code></a>.</p>
|
||
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
<span class="attribute">#[<span class="ident">derive</span>(<span class="ident">Hash</span>, <span class="ident">Eq</span>, <span class="ident">PartialEq</span>, <span class="ident">Debug</span>)]</span>
|
||
<span class="kw">struct</span> <span class="ident">Viking</span> {
|
||
<span class="ident">name</span>: <span class="ident">String</span>,
|
||
<span class="ident">power</span>: <span class="ident">usize</span>,
|
||
}
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">vikings</span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">new</span>();
|
||
|
||
<span class="ident">vikings</span>.<span class="ident">insert</span>(<span class="ident">Viking</span> { <span class="ident">name</span>: <span class="string">"Einar"</span>.<span class="ident">to_string</span>(), <span class="ident">power</span>: <span class="number">9</span> });
|
||
<span class="ident">vikings</span>.<span class="ident">insert</span>(<span class="ident">Viking</span> { <span class="ident">name</span>: <span class="string">"Einar"</span>.<span class="ident">to_string</span>(), <span class="ident">power</span>: <span class="number">9</span> });
|
||
<span class="ident">vikings</span>.<span class="ident">insert</span>(<span class="ident">Viking</span> { <span class="ident">name</span>: <span class="string">"Olaf"</span>.<span class="ident">to_string</span>(), <span class="ident">power</span>: <span class="number">4</span> });
|
||
<span class="ident">vikings</span>.<span class="ident">insert</span>(<span class="ident">Viking</span> { <span class="ident">name</span>: <span class="string">"Harald"</span>.<span class="ident">to_string</span>(), <span class="ident">power</span>: <span class="number">8</span> });
|
||
|
||
<span class="comment">// Use derived implementation to print the vikings.</span>
|
||
<span class="kw">for</span> <span class="ident">x</span> <span class="kw">in</span> <span class="kw-2">&</span><span class="ident">vikings</span> {
|
||
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"{:?}"</span>, <span class="ident">x</span>);
|
||
}</pre></div>
|
||
<p>A <code>HashSet</code> with fixed list of elements can be initialized from an array:</p>
|
||
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">viking_names</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span><span class="op">></span> <span class="op">=</span>
|
||
[ <span class="string">"Einar"</span>, <span class="string">"Olaf"</span>, <span class="string">"Harald"</span> ].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
<span class="comment">// use the values stored in the set</span></pre></div>
|
||
</div><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor"></a></h2><h3 id="impl" class="impl"><code class="in-band">impl<T, S> <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S></code><a href="#impl" class="anchor"></a><a class="srclink" href="../src/hashbrown/set.rs.html#170-427" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.with_hasher" class="method"><code>pub const fn <a href="#method.with_hasher" class="fnname">with_hasher</a>(hasher: S) -> Self</code><a class="srclink" href="../src/hashbrown/set.rs.html#198-202" title="goto source code">[src]</a></h4><div class="docblock"><p>Creates a new empty hash set which will use the given hasher to hash
|
||
keys.</p>
|
||
<p>The hash set is also created with the default initial capacity.</p>
|
||
<p>Warning: <code>hasher</code> is normally randomly generated, and
|
||
is designed to allow <code>HashSet</code>s to be resistant to attacks that
|
||
cause many collisions and very poor performance. Setting it
|
||
manually using this function can expose a DoS attack vector.</p>
|
||
<p>The <code>hash_builder</code> passed should implement the <a href="../../std/hash/trait.BuildHasher.html"><code>BuildHasher</code></a> trait for
|
||
the HashMap to be useful, see its documentation for details.</p>
|
||
<h1 id="examples-1" class="section-header"><a href="#examples-1">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">hash_map</span>::<span class="ident">DefaultHashBuilder</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">s</span> <span class="op">=</span> <span class="ident">DefaultHashBuilder</span>::<span class="ident">default</span>();
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">with_hasher</span>(<span class="ident">s</span>);
|
||
<span class="ident">set</span>.<span class="ident">insert</span>(<span class="number">2</span>);</pre></div>
|
||
</div><h4 id="method.with_capacity_and_hasher" class="method"><code>pub fn <a href="#method.with_capacity_and_hasher" class="fnname">with_capacity_and_hasher</a>(capacity: usize, hasher: S) -> Self</code><a class="srclink" href="../src/hashbrown/set.rs.html#231-235" title="goto source code">[src]</a></h4><div class="docblock"><p>Creates an empty <code>HashSet</code> with the specified capacity, using
|
||
<code>hasher</code> to hash the keys.</p>
|
||
<p>The hash set will be able to hold at least <code>capacity</code> elements without
|
||
reallocating. If <code>capacity</code> is 0, the hash set will not allocate.</p>
|
||
<p>Warning: <code>hasher</code> is normally randomly generated, and
|
||
is designed to allow <code>HashSet</code>s to be resistant to attacks that
|
||
cause many collisions and very poor performance. Setting it
|
||
manually using this function can expose a DoS attack vector.</p>
|
||
<p>The <code>hash_builder</code> passed should implement the <a href="../../std/hash/trait.BuildHasher.html"><code>BuildHasher</code></a> trait for
|
||
the HashMap to be useful, see its documentation for details.</p>
|
||
<h1 id="examples-2" class="section-header"><a href="#examples-2">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">hash_map</span>::<span class="ident">DefaultHashBuilder</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">s</span> <span class="op">=</span> <span class="ident">DefaultHashBuilder</span>::<span class="ident">default</span>();
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">with_capacity_and_hasher</span>(<span class="number">10</span>, <span class="ident">s</span>);
|
||
<span class="ident">set</span>.<span class="ident">insert</span>(<span class="number">1</span>);</pre></div>
|
||
</div><h4 id="method.capacity" class="method"><code>pub fn <a href="#method.capacity" class="fnname">capacity</a>(&self) -> usize</code><a class="srclink" href="../src/hashbrown/set.rs.html#247-249" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns the number of elements the set can hold without reallocating.</p>
|
||
<h1 id="examples-3" class="section-header"><a href="#examples-3">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
<span class="kw">let</span> <span class="ident">set</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="ident">i32</span><span class="op">></span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">with_capacity</span>(<span class="number">100</span>);
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">capacity</span>() <span class="op">></span><span class="op">=</span> <span class="number">100</span>);</pre></div>
|
||
</div><h4 id="method.iter" class="method"><code>pub fn <a href="#method.iter" class="fnname">iter</a>(&self) -> <a class="struct" href="../hashbrown/hash_set/struct.Iter.html" title="struct hashbrown::hash_set::Iter">Iter</a><'_, T><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<div class="notable-traits-tooltiptext"><span class="docblock"><h3 class="notable">Notable traits for <a class="struct" href="../hashbrown/hash_set/struct.Iter.html" title="struct hashbrown::hash_set::Iter">Iter</a><'a, K></h3><code class="content"><span class="where fmt-newline">impl<'a, K> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a> for <a class="struct" href="../hashbrown/hash_set/struct.Iter.html" title="struct hashbrown::hash_set::Iter">Iter</a><'a, K></span><span class="where fmt-newline"> type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" class="type">Item</a> = &'a K;</span></code></span></div></span></span></code><a class="srclink" href="../src/hashbrown/set.rs.html#268-272" title="goto source code">[src]</a></h4><div class="docblock"><p>An iterator visiting all elements in arbitrary order.
|
||
The iterator element type is <code>&'a T</code>.</p>
|
||
<h1 id="examples-4" class="section-header"><a href="#examples-4">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">new</span>();
|
||
<span class="ident">set</span>.<span class="ident">insert</span>(<span class="string">"a"</span>);
|
||
<span class="ident">set</span>.<span class="ident">insert</span>(<span class="string">"b"</span>);
|
||
|
||
<span class="comment">// Will print in an arbitrary order.</span>
|
||
<span class="kw">for</span> <span class="ident">x</span> <span class="kw">in</span> <span class="ident">set</span>.<span class="ident">iter</span>() {
|
||
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"{}"</span>, <span class="ident">x</span>);
|
||
}</pre></div>
|
||
</div><h4 id="method.len" class="method"><code>pub fn <a href="#method.len" class="fnname">len</a>(&self) -> usize</code><a class="srclink" href="../src/hashbrown/set.rs.html#287-289" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns the number of elements in the set.</p>
|
||
<h1 id="examples-5" class="section-header"><a href="#examples-5">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">v</span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">new</span>();
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">v</span>.<span class="ident">len</span>(), <span class="number">0</span>);
|
||
<span class="ident">v</span>.<span class="ident">insert</span>(<span class="number">1</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">v</span>.<span class="ident">len</span>(), <span class="number">1</span>);</pre></div>
|
||
</div><h4 id="method.is_empty" class="method"><code>pub fn <a href="#method.is_empty" class="fnname">is_empty</a>(&self) -> bool</code><a class="srclink" href="../src/hashbrown/set.rs.html#304-306" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns <code>true</code> if the set contains no elements.</p>
|
||
<h1 id="examples-6" class="section-header"><a href="#examples-6">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">v</span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">new</span>();
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span>.<span class="ident">is_empty</span>());
|
||
<span class="ident">v</span>.<span class="ident">insert</span>(<span class="number">1</span>);
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">v</span>.<span class="ident">is_empty</span>());</pre></div>
|
||
</div><h4 id="method.drain" class="method"><code>pub fn <a href="#method.drain" class="fnname">drain</a>(&mut self) -> <a class="struct" href="../hashbrown/hash_set/struct.Drain.html" title="struct hashbrown::hash_set::Drain">Drain</a><'_, T><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<div class="notable-traits-tooltiptext"><span class="docblock"><h3 class="notable">Notable traits for <a class="struct" href="../hashbrown/hash_set/struct.Drain.html" title="struct hashbrown::hash_set::Drain">Drain</a><'_, K></h3><code class="content"><span class="where fmt-newline">impl<K> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a> for <a class="struct" href="../hashbrown/hash_set/struct.Drain.html" title="struct hashbrown::hash_set::Drain">Drain</a><'_, K></span><span class="where fmt-newline"> type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" class="type">Item</a> = K;</span></code></span></div></span></span></code><a class="srclink" href="../src/hashbrown/set.rs.html#326-330" title="goto source code">[src]</a></h4><div class="docblock"><p>Clears the set, returning all elements in an iterator.</p>
|
||
<h1 id="examples-7" class="section-header"><a href="#examples-7">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="op">!</span><span class="ident">set</span>.<span class="ident">is_empty</span>());
|
||
|
||
<span class="comment">// print 1, 2, 3 in an arbitrary order</span>
|
||
<span class="kw">for</span> <span class="ident">i</span> <span class="kw">in</span> <span class="ident">set</span>.<span class="ident">drain</span>() {
|
||
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"{}"</span>, <span class="ident">i</span>);
|
||
}
|
||
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">is_empty</span>());</pre></div>
|
||
</div><h4 id="method.retain" class="method"><code>pub fn <a href="#method.retain" class="fnname">retain</a><F>(&mut self, f: F) <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&T) -> bool, </span></code><a class="srclink" href="../src/hashbrown/set.rs.html#346-351" title="goto source code">[src]</a></h4><div class="docblock"><p>Retains only the elements specified by the predicate.</p>
|
||
<p>In other words, remove all elements <code>e</code> such that <code>f(&e)</code> returns <code>false</code>.</p>
|
||
<h1 id="examples-8" class="section-header"><a href="#examples-8">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">xs</span> <span class="op">=</span> [<span class="number">1</span>,<span class="number">2</span>,<span class="number">3</span>,<span class="number">4</span>,<span class="number">5</span>,<span class="number">6</span>];
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="ident">i32</span><span class="op">></span> <span class="op">=</span> <span class="ident">xs</span>.<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
<span class="ident">set</span>.<span class="ident">retain</span>(<span class="op">|</span><span class="kw-2">&</span><span class="ident">k</span><span class="op">|</span> <span class="ident">k</span> <span class="op">%</span> <span class="number">2</span> <span class="op">=</span><span class="op">=</span> <span class="number">0</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">len</span>(), <span class="number">3</span>);</pre></div>
|
||
</div><h4 id="method.drain_filter" class="method"><code>pub fn <a href="#method.drain_filter" class="fnname">drain_filter</a><F>(&mut self, f: F) -> <a class="struct" href="../hashbrown/hash_set/struct.DrainFilter.html" title="struct hashbrown::hash_set::DrainFilter">DrainFilter</a><'_, T, F><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<div class="notable-traits-tooltiptext"><span class="docblock"><h3 class="notable">Notable traits for <a class="struct" href="../hashbrown/hash_set/struct.DrainFilter.html" title="struct hashbrown::hash_set::DrainFilter">DrainFilter</a><'_, K, F></h3><code class="content"><span class="where fmt-newline">impl<K, F> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a> for <a class="struct" href="../hashbrown/hash_set/struct.DrainFilter.html" title="struct hashbrown::hash_set::DrainFilter">DrainFilter</a><'_, K, F> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&K) -> bool, </span></span><span class="where fmt-newline"> type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" class="type">Item</a> = K;</span></code></span></div></span></span> <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(&T) -> bool, </span></code><a class="srclink" href="../src/hashbrown/set.rs.html#379-390" title="goto source code">[src]</a></h4><div class="docblock"><p>Drains elements which are true under the given predicate,
|
||
and returns an iterator over the removed items.</p>
|
||
<p>In other words, move all elements <code>e</code> such that <code>f(&e)</code> returns <code>true</code> out
|
||
into another iterator.</p>
|
||
<p>When the returned DrainedFilter is dropped, any remaining elements that satisfy
|
||
the predicate are dropped from the set.</p>
|
||
<h1 id="examples-9" class="section-header"><a href="#examples-9">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="ident">i32</span><span class="op">></span> <span class="op">=</span> (<span class="number">0</span>..<span class="number">8</span>).<span class="ident">collect</span>();
|
||
<span class="kw">let</span> <span class="ident">drained</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="ident">i32</span><span class="op">></span> <span class="op">=</span> <span class="ident">set</span>.<span class="ident">drain_filter</span>(<span class="op">|</span><span class="ident">v</span><span class="op">|</span> <span class="ident">v</span> <span class="op">%</span> <span class="number">2</span> <span class="op">=</span><span class="op">=</span> <span class="number">0</span>).<span class="ident">collect</span>();
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">evens</span> <span class="op">=</span> <span class="ident">drained</span>.<span class="ident">into_iter</span>().<span class="ident">collect</span>::<span class="op"><</span><span class="ident">Vec</span><span class="op"><</span><span class="kw">_</span><span class="op">></span><span class="op">></span>();
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">odds</span> <span class="op">=</span> <span class="ident">set</span>.<span class="ident">into_iter</span>().<span class="ident">collect</span>::<span class="op"><</span><span class="ident">Vec</span><span class="op"><</span><span class="kw">_</span><span class="op">></span><span class="op">></span>();
|
||
<span class="ident">evens</span>.<span class="ident">sort</span>();
|
||
<span class="ident">odds</span>.<span class="ident">sort</span>();
|
||
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">evens</span>, <span class="macro">vec</span><span class="macro">!</span>[<span class="number">0</span>, <span class="number">2</span>, <span class="number">4</span>, <span class="number">6</span>]);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">odds</span>, <span class="macro">vec</span><span class="macro">!</span>[<span class="number">1</span>, <span class="number">3</span>, <span class="number">5</span>, <span class="number">7</span>]);</pre></div>
|
||
</div><h4 id="method.clear" class="method"><code>pub fn <a href="#method.clear" class="fnname">clear</a>(&mut self)</code><a class="srclink" href="../src/hashbrown/set.rs.html#405-407" title="goto source code">[src]</a></h4><div class="docblock"><p>Clears the set, removing all values.</p>
|
||
<h1 id="examples-10" class="section-header"><a href="#examples-10">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">v</span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">new</span>();
|
||
<span class="ident">v</span>.<span class="ident">insert</span>(<span class="number">1</span>);
|
||
<span class="ident">v</span>.<span class="ident">clear</span>();
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">v</span>.<span class="ident">is_empty</span>());</pre></div>
|
||
</div><h4 id="method.hasher" class="method"><code>pub fn <a href="#method.hasher" class="fnname">hasher</a>(&self) -> &S</code><a class="srclink" href="../src/hashbrown/set.rs.html#424-426" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns a reference to the set's <a href="https://doc.rust-lang.org/std/hash/trait.BuildHasher.html"><code>BuildHasher</code></a>.</p>
|
||
<h1 id="examples-11" class="section-header"><a href="#examples-11">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">hash_map</span>::<span class="ident">DefaultHashBuilder</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">hasher</span> <span class="op">=</span> <span class="ident">DefaultHashBuilder</span>::<span class="ident">default</span>();
|
||
<span class="kw">let</span> <span class="ident">set</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="ident">i32</span><span class="op">></span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">with_hasher</span>(<span class="ident">hasher</span>);
|
||
<span class="kw">let</span> <span class="ident">hasher</span>: <span class="kw-2">&</span><span class="ident">DefaultHashBuilder</span> <span class="op">=</span> <span class="ident">set</span>.<span class="ident">hasher</span>();</pre></div>
|
||
</div></div><h3 id="impl-1" class="impl"><code class="in-band">impl<T, S> <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>, </span></code><a href="#impl-1" class="anchor"></a><a class="srclink" href="../src/hashbrown/set.rs.html#429-968" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.reserve" class="method"><code>pub fn <a href="#method.reserve" class="fnname">reserve</a>(&mut self, additional: usize)</code><a class="srclink" href="../src/hashbrown/set.rs.html#451-453" title="goto source code">[src]</a></h4><div class="docblock"><p>Reserves capacity for at least <code>additional</code> more elements to be inserted
|
||
in the <code>HashSet</code>. The collection may reserve more space to avoid
|
||
frequent reallocations.</p>
|
||
<h1 id="panics" class="section-header"><a href="#panics">Panics</a></h1>
|
||
<p>Panics if the new allocation size overflows <code>usize</code>.</p>
|
||
<h1 id="examples-12" class="section-header"><a href="#examples-12">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="ident">i32</span><span class="op">></span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">new</span>();
|
||
<span class="ident">set</span>.<span class="ident">reserve</span>(<span class="number">10</span>);
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">capacity</span>() <span class="op">></span><span class="op">=</span> <span class="number">10</span>);</pre></div>
|
||
</div><h4 id="method.try_reserve" class="method"><code>pub fn <a href="#method.try_reserve" class="fnname">try_reserve</a>(&mut self, additional: usize) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><(), <a class="enum" href="../hashbrown/enum.TryReserveError.html" title="enum hashbrown::TryReserveError">TryReserveError</a>></code><a class="srclink" href="../src/hashbrown/set.rs.html#472-474" title="goto source code">[src]</a></h4><div class="docblock"><p>Tries to reserve capacity for at least <code>additional</code> more elements to be inserted
|
||
in the given <code>HashSet<K,V></code>. The collection may reserve more space to avoid
|
||
frequent reallocations.</p>
|
||
<h1 id="errors" class="section-header"><a href="#errors">Errors</a></h1>
|
||
<p>If the capacity overflows, or the allocator reports a failure, then an error
|
||
is returned.</p>
|
||
<h1 id="examples-13" class="section-header"><a href="#examples-13">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="ident">i32</span><span class="op">></span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">new</span>();
|
||
<span class="ident">set</span>.<span class="ident">try_reserve</span>(<span class="number">10</span>).<span class="ident">expect</span>(<span class="string">"why is the test harness OOMing on 10 bytes?"</span>);</pre></div>
|
||
</div><h4 id="method.shrink_to_fit" class="method"><code>pub fn <a href="#method.shrink_to_fit" class="fnname">shrink_to_fit</a>(&mut self)</code><a class="srclink" href="../src/hashbrown/set.rs.html#493-495" title="goto source code">[src]</a></h4><div class="docblock"><p>Shrinks the capacity of the set as much as possible. It will drop
|
||
down as much as possible while maintaining the internal rules
|
||
and possibly leaving some space in accordance with the resize policy.</p>
|
||
<h1 id="examples-14" class="section-header"><a href="#examples-14">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">with_capacity</span>(<span class="number">100</span>);
|
||
<span class="ident">set</span>.<span class="ident">insert</span>(<span class="number">1</span>);
|
||
<span class="ident">set</span>.<span class="ident">insert</span>(<span class="number">2</span>);
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">capacity</span>() <span class="op">></span><span class="op">=</span> <span class="number">100</span>);
|
||
<span class="ident">set</span>.<span class="ident">shrink_to_fit</span>();
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">capacity</span>() <span class="op">></span><span class="op">=</span> <span class="number">2</span>);</pre></div>
|
||
</div><h4 id="method.shrink_to" class="method"><code>pub fn <a href="#method.shrink_to" class="fnname">shrink_to</a>(&mut self, min_capacity: usize)</code><a class="srclink" href="../src/hashbrown/set.rs.html#519-521" title="goto source code">[src]</a></h4><div class="docblock"><p>Shrinks the capacity of the set with a lower limit. It will drop
|
||
down no lower than the supplied limit while maintaining the internal rules
|
||
and possibly leaving some space in accordance with the resize policy.</p>
|
||
<p>Panics if the current capacity is smaller than the supplied
|
||
minimum capacity.</p>
|
||
<h1 id="examples-15" class="section-header"><a href="#examples-15">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">with_capacity</span>(<span class="number">100</span>);
|
||
<span class="ident">set</span>.<span class="ident">insert</span>(<span class="number">1</span>);
|
||
<span class="ident">set</span>.<span class="ident">insert</span>(<span class="number">2</span>);
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">capacity</span>() <span class="op">></span><span class="op">=</span> <span class="number">100</span>);
|
||
<span class="ident">set</span>.<span class="ident">shrink_to</span>(<span class="number">10</span>);
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">capacity</span>() <span class="op">></span><span class="op">=</span> <span class="number">10</span>);
|
||
<span class="ident">set</span>.<span class="ident">shrink_to</span>(<span class="number">0</span>);
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">capacity</span>() <span class="op">></span><span class="op">=</span> <span class="number">2</span>);</pre></div>
|
||
</div><h4 id="method.difference" class="method"><code>pub fn <a href="#method.difference" class="fnname">difference</a><'a>(&'a self, other: &'a Self) -> <a class="struct" href="../hashbrown/hash_set/struct.Difference.html" title="struct hashbrown::hash_set::Difference">Difference</a><'a, T, S><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<div class="notable-traits-tooltiptext"><span class="docblock"><h3 class="notable">Notable traits for <a class="struct" href="../hashbrown/hash_set/struct.Difference.html" title="struct hashbrown::hash_set::Difference">Difference</a><'a, T, S></h3><code class="content"><span class="where fmt-newline">impl<'a, T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a> for <a class="struct" href="../hashbrown/hash_set/struct.Difference.html" title="struct hashbrown::hash_set::Difference">Difference</a><'a, T, S> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>, </span></span><span class="where fmt-newline"> type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" class="type">Item</a> = &'a T;</span></code></span></div></span></span></code><a class="srclink" href="../src/hashbrown/set.rs.html#547-552" title="goto source code">[src]</a></h4><div class="docblock"><p>Visits the values representing the difference,
|
||
i.e., the values that are in <code>self</code> but not in <code>other</code>.</p>
|
||
<h1 id="examples-16" class="section-header"><a href="#examples-16">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
<span class="kw">let</span> <span class="ident">a</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
<span class="kw">let</span> <span class="ident">b</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> [<span class="number">4</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
|
||
<span class="comment">// Can be seen as `a - b`.</span>
|
||
<span class="kw">for</span> <span class="ident">x</span> <span class="kw">in</span> <span class="ident">a</span>.<span class="ident">difference</span>(<span class="kw-2">&</span><span class="ident">b</span>) {
|
||
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"{}"</span>, <span class="ident">x</span>); <span class="comment">// Print 1</span>
|
||
}
|
||
|
||
<span class="kw">let</span> <span class="ident">diff</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> <span class="ident">a</span>.<span class="ident">difference</span>(<span class="kw-2">&</span><span class="ident">b</span>).<span class="ident">collect</span>();
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">diff</span>, [<span class="number">1</span>].<span class="ident">iter</span>().<span class="ident">collect</span>());
|
||
|
||
<span class="comment">// Note that difference is not symmetric,</span>
|
||
<span class="comment">// and `b - a` means something else:</span>
|
||
<span class="kw">let</span> <span class="ident">diff</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> <span class="ident">b</span>.<span class="ident">difference</span>(<span class="kw-2">&</span><span class="ident">a</span>).<span class="ident">collect</span>();
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">diff</span>, [<span class="number">4</span>].<span class="ident">iter</span>().<span class="ident">collect</span>());</pre></div>
|
||
</div><h4 id="method.symmetric_difference" class="method"><code>pub fn <a href="#method.symmetric_difference" class="fnname">symmetric_difference</a><'a>(<br> &'a self, <br> other: &'a Self<br>) -> <a class="struct" href="../hashbrown/hash_set/struct.SymmetricDifference.html" title="struct hashbrown::hash_set::SymmetricDifference">SymmetricDifference</a><'a, T, S><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<div class="notable-traits-tooltiptext"><span class="docblock"><h3 class="notable">Notable traits for <a class="struct" href="../hashbrown/hash_set/struct.SymmetricDifference.html" title="struct hashbrown::hash_set::SymmetricDifference">SymmetricDifference</a><'a, T, S></h3><code class="content"><span class="where fmt-newline">impl<'a, T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a> for <a class="struct" href="../hashbrown/hash_set/struct.SymmetricDifference.html" title="struct hashbrown::hash_set::SymmetricDifference">SymmetricDifference</a><'a, T, S> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>, </span></span><span class="where fmt-newline"> type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" class="type">Item</a> = &'a T;</span></code></span></div></span></span></code><a class="srclink" href="../src/hashbrown/set.rs.html#576-580" title="goto source code">[src]</a></h4><div class="docblock"><p>Visits the values representing the symmetric difference,
|
||
i.e., the values that are in <code>self</code> or in <code>other</code> but not in both.</p>
|
||
<h1 id="examples-17" class="section-header"><a href="#examples-17">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
<span class="kw">let</span> <span class="ident">a</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
<span class="kw">let</span> <span class="ident">b</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> [<span class="number">4</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
|
||
<span class="comment">// Print 1, 4 in arbitrary order.</span>
|
||
<span class="kw">for</span> <span class="ident">x</span> <span class="kw">in</span> <span class="ident">a</span>.<span class="ident">symmetric_difference</span>(<span class="kw-2">&</span><span class="ident">b</span>) {
|
||
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"{}"</span>, <span class="ident">x</span>);
|
||
}
|
||
|
||
<span class="kw">let</span> <span class="ident">diff1</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> <span class="ident">a</span>.<span class="ident">symmetric_difference</span>(<span class="kw-2">&</span><span class="ident">b</span>).<span class="ident">collect</span>();
|
||
<span class="kw">let</span> <span class="ident">diff2</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> <span class="ident">b</span>.<span class="ident">symmetric_difference</span>(<span class="kw-2">&</span><span class="ident">a</span>).<span class="ident">collect</span>();
|
||
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">diff1</span>, <span class="ident">diff2</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">diff1</span>, [<span class="number">1</span>, <span class="number">4</span>].<span class="ident">iter</span>().<span class="ident">collect</span>());</pre></div>
|
||
</div><h4 id="method.intersection" class="method"><code>pub fn <a href="#method.intersection" class="fnname">intersection</a><'a>(&'a self, other: &'a Self) -> <a class="struct" href="../hashbrown/hash_set/struct.Intersection.html" title="struct hashbrown::hash_set::Intersection">Intersection</a><'a, T, S><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<div class="notable-traits-tooltiptext"><span class="docblock"><h3 class="notable">Notable traits for <a class="struct" href="../hashbrown/hash_set/struct.Intersection.html" title="struct hashbrown::hash_set::Intersection">Intersection</a><'a, T, S></h3><code class="content"><span class="where fmt-newline">impl<'a, T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a> for <a class="struct" href="../hashbrown/hash_set/struct.Intersection.html" title="struct hashbrown::hash_set::Intersection">Intersection</a><'a, T, S> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>, </span></span><span class="where fmt-newline"> type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" class="type">Item</a> = &'a T;</span></code></span></div></span></span></code><a class="srclink" href="../src/hashbrown/set.rs.html#601-611" title="goto source code">[src]</a></h4><div class="docblock"><p>Visits the values representing the intersection,
|
||
i.e., the values that are both in <code>self</code> and <code>other</code>.</p>
|
||
<h1 id="examples-18" class="section-header"><a href="#examples-18">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
<span class="kw">let</span> <span class="ident">a</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
<span class="kw">let</span> <span class="ident">b</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> [<span class="number">4</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
|
||
<span class="comment">// Print 2, 3 in arbitrary order.</span>
|
||
<span class="kw">for</span> <span class="ident">x</span> <span class="kw">in</span> <span class="ident">a</span>.<span class="ident">intersection</span>(<span class="kw-2">&</span><span class="ident">b</span>) {
|
||
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"{}"</span>, <span class="ident">x</span>);
|
||
}
|
||
|
||
<span class="kw">let</span> <span class="ident">intersection</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> <span class="ident">a</span>.<span class="ident">intersection</span>(<span class="kw-2">&</span><span class="ident">b</span>).<span class="ident">collect</span>();
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">intersection</span>, [<span class="number">2</span>, <span class="number">3</span>].<span class="ident">iter</span>().<span class="ident">collect</span>());</pre></div>
|
||
</div><h4 id="method.union" class="method"><code>pub fn <a href="#method.union" class="fnname">union</a><'a>(&'a self, other: &'a Self) -> <a class="struct" href="../hashbrown/hash_set/struct.Union.html" title="struct hashbrown::hash_set::Union">Union</a><'a, T, S><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<div class="notable-traits-tooltiptext"><span class="docblock"><h3 class="notable">Notable traits for <a class="struct" href="../hashbrown/hash_set/struct.Union.html" title="struct hashbrown::hash_set::Union">Union</a><'a, T, S></h3><code class="content"><span class="where fmt-newline">impl<'a, T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a> for <a class="struct" href="../hashbrown/hash_set/struct.Union.html" title="struct hashbrown::hash_set::Union">Union</a><'a, T, S> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>, </span></span><span class="where fmt-newline"> type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" class="type">Item</a> = &'a T;</span></code></span></div></span></span></code><a class="srclink" href="../src/hashbrown/set.rs.html#632-641" title="goto source code">[src]</a></h4><div class="docblock"><p>Visits the values representing the union,
|
||
i.e., all the values in <code>self</code> or <code>other</code>, without duplicates.</p>
|
||
<h1 id="examples-19" class="section-header"><a href="#examples-19">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
<span class="kw">let</span> <span class="ident">a</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
<span class="kw">let</span> <span class="ident">b</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> [<span class="number">4</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
|
||
<span class="comment">// Print 1, 2, 3, 4 in arbitrary order.</span>
|
||
<span class="kw">for</span> <span class="ident">x</span> <span class="kw">in</span> <span class="ident">a</span>.<span class="ident">union</span>(<span class="kw-2">&</span><span class="ident">b</span>) {
|
||
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"{}"</span>, <span class="ident">x</span>);
|
||
}
|
||
|
||
<span class="kw">let</span> <span class="ident">union</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> <span class="ident">a</span>.<span class="ident">union</span>(<span class="kw-2">&</span><span class="ident">b</span>).<span class="ident">collect</span>();
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">union</span>, [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>].<span class="ident">iter</span>().<span class="ident">collect</span>());</pre></div>
|
||
</div><h4 id="method.contains" class="method"><code>pub fn <a href="#method.contains" class="fnname">contains</a><Q: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>>(&self, value: &Q) -> bool <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><Q>,<br> Q: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>, </span></code><a class="srclink" href="../src/hashbrown/set.rs.html#662-668" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns <code>true</code> if the set contains a value.</p>
|
||
<p>The value may be any borrowed form of the set's value type, but
|
||
<a href="https://doc.rust-lang.org/std/hash/trait.Hash.html"><code>Hash</code></a> and <a href="https://doc.rust-lang.org/std/cmp/trait.Eq.html"><code>Eq</code></a> on the borrowed form <em>must</em> match those for
|
||
the value type.</p>
|
||
<h1 id="examples-20" class="section-header"><a href="#examples-20">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">set</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">contains</span>(<span class="kw-2">&</span><span class="number">1</span>), <span class="bool-val">true</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">contains</span>(<span class="kw-2">&</span><span class="number">4</span>), <span class="bool-val">false</span>);</pre></div>
|
||
</div><h4 id="method.get" class="method"><code>pub fn <a href="#method.get" class="fnname">get</a><Q: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>>(&self, value: &Q) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&T> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><Q>,<br> Q: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>, </span></code><a class="srclink" href="../src/hashbrown/set.rs.html#689-699" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns a reference to the value in the set, if any, that is equal to the given value.</p>
|
||
<p>The value may be any borrowed form of the set's value type, but
|
||
<a href="https://doc.rust-lang.org/std/hash/trait.Hash.html"><code>Hash</code></a> and <a href="https://doc.rust-lang.org/std/cmp/trait.Eq.html"><code>Eq</code></a> on the borrowed form <em>must</em> match those for
|
||
the value type.</p>
|
||
<h1 id="examples-21" class="section-header"><a href="#examples-21">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">set</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">get</span>(<span class="kw-2">&</span><span class="number">2</span>), <span class="prelude-val">Some</span>(<span class="kw-2">&</span><span class="number">2</span>));
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">get</span>(<span class="kw-2">&</span><span class="number">4</span>), <span class="prelude-val">None</span>);</pre></div>
|
||
</div><h4 id="method.get_or_insert" class="method"><code>pub fn <a href="#method.get_or_insert" class="fnname">get_or_insert</a>(&mut self, value: T) -> &T</code><a class="srclink" href="../src/hashbrown/set.rs.html#716-724" title="goto source code">[src]</a></h4><div class="docblock"><p>Inserts the given <code>value</code> into the set if it is not present, then
|
||
returns a reference to the value in the set.</p>
|
||
<h1 id="examples-22" class="section-header"><a href="#examples-22">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">len</span>(), <span class="number">3</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">get_or_insert</span>(<span class="number">2</span>), <span class="kw-2">&</span><span class="number">2</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">get_or_insert</span>(<span class="number">100</span>), <span class="kw-2">&</span><span class="number">100</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">len</span>(), <span class="number">4</span>); <span class="comment">// 100 was inserted</span></pre></div>
|
||
</div><h4 id="method.get_or_insert_owned" class="method"><code>pub fn <a href="#method.get_or_insert_owned" class="fnname">get_or_insert_owned</a><Q: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>>(&mut self, value: &Q) -> &T <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><Q>,<br> Q: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html" title="trait alloc::borrow::ToOwned">ToOwned</a><Owned = T>, </span></code><a class="srclink" href="../src/hashbrown/set.rs.html#745-757" title="goto source code">[src]</a></h4><div class="docblock"><p>Inserts an owned copy of the given <code>value</code> into the set if it is not
|
||
present, then returns a reference to the value in the set.</p>
|
||
<h1 id="examples-23" class="section-header"><a href="#examples-23">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="ident">String</span><span class="op">></span> <span class="op">=</span> [<span class="string">"cat"</span>, <span class="string">"dog"</span>, <span class="string">"horse"</span>]
|
||
.<span class="ident">iter</span>().<span class="ident">map</span>(<span class="op">|</span><span class="kw-2">&</span><span class="ident">pet</span><span class="op">|</span> <span class="ident">pet</span>.<span class="ident">to_owned</span>()).<span class="ident">collect</span>();
|
||
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">len</span>(), <span class="number">3</span>);
|
||
<span class="kw">for</span> <span class="kw-2">&</span><span class="ident">pet</span> <span class="kw">in</span> <span class="kw-2">&</span>[<span class="string">"cat"</span>, <span class="string">"dog"</span>, <span class="string">"fish"</span>] {
|
||
<span class="kw">let</span> <span class="ident">value</span> <span class="op">=</span> <span class="ident">set</span>.<span class="ident">get_or_insert_owned</span>(<span class="ident">pet</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">value</span>, <span class="ident">pet</span>);
|
||
}
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">len</span>(), <span class="number">4</span>); <span class="comment">// a new "fish" was inserted</span></pre></div>
|
||
</div><h4 id="method.get_or_insert_with" class="method"><code>pub fn <a href="#method.get_or_insert_with" class="fnname">get_or_insert_with</a><Q: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, F>(&mut self, value: &Q, f: F) -> &T <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><Q>,<br> Q: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>,<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnOnce.html" title="trait core::ops::function::FnOnce">FnOnce</a>(&Q) -> T, </span></code><a class="srclink" href="../src/hashbrown/set.rs.html#778-791" title="goto source code">[src]</a></h4><div class="docblock"><p>Inserts a value computed from <code>f</code> into the set if the given <code>value</code> is
|
||
not present, then returns a reference to the value in the set.</p>
|
||
<h1 id="examples-24" class="section-header"><a href="#examples-24">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="ident">String</span><span class="op">></span> <span class="op">=</span> [<span class="string">"cat"</span>, <span class="string">"dog"</span>, <span class="string">"horse"</span>]
|
||
.<span class="ident">iter</span>().<span class="ident">map</span>(<span class="op">|</span><span class="kw-2">&</span><span class="ident">pet</span><span class="op">|</span> <span class="ident">pet</span>.<span class="ident">to_owned</span>()).<span class="ident">collect</span>();
|
||
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">len</span>(), <span class="number">3</span>);
|
||
<span class="kw">for</span> <span class="kw-2">&</span><span class="ident">pet</span> <span class="kw">in</span> <span class="kw-2">&</span>[<span class="string">"cat"</span>, <span class="string">"dog"</span>, <span class="string">"fish"</span>] {
|
||
<span class="kw">let</span> <span class="ident">value</span> <span class="op">=</span> <span class="ident">set</span>.<span class="ident">get_or_insert_with</span>(<span class="ident">pet</span>, <span class="ident">str</span>::<span class="ident">to_owned</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">value</span>, <span class="ident">pet</span>);
|
||
}
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">len</span>(), <span class="number">4</span>); <span class="comment">// a new "fish" was inserted</span></pre></div>
|
||
</div><h4 id="method.is_disjoint" class="method"><code>pub fn <a href="#method.is_disjoint" class="fnname">is_disjoint</a>(&self, other: &Self) -> bool</code><a class="srclink" href="../src/hashbrown/set.rs.html#810-812" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns <code>true</code> if <code>self</code> has no elements in common with <code>other</code>.
|
||
This is equivalent to checking for an empty intersection.</p>
|
||
<h1 id="examples-25" class="section-header"><a href="#examples-25">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">a</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">b</span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">new</span>();
|
||
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">a</span>.<span class="ident">is_disjoint</span>(<span class="kw-2">&</span><span class="ident">b</span>), <span class="bool-val">true</span>);
|
||
<span class="ident">b</span>.<span class="ident">insert</span>(<span class="number">4</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">a</span>.<span class="ident">is_disjoint</span>(<span class="kw-2">&</span><span class="ident">b</span>), <span class="bool-val">true</span>);
|
||
<span class="ident">b</span>.<span class="ident">insert</span>(<span class="number">1</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">a</span>.<span class="ident">is_disjoint</span>(<span class="kw-2">&</span><span class="ident">b</span>), <span class="bool-val">false</span>);</pre></div>
|
||
</div><h4 id="method.is_subset" class="method"><code>pub fn <a href="#method.is_subset" class="fnname">is_subset</a>(&self, other: &Self) -> bool</code><a class="srclink" href="../src/hashbrown/set.rs.html#831-833" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns <code>true</code> if the set is a subset of another,
|
||
i.e., <code>other</code> contains at least all the values in <code>self</code>.</p>
|
||
<h1 id="examples-26" class="section-header"><a href="#examples-26">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">sup</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">new</span>();
|
||
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">is_subset</span>(<span class="kw-2">&</span><span class="ident">sup</span>), <span class="bool-val">true</span>);
|
||
<span class="ident">set</span>.<span class="ident">insert</span>(<span class="number">2</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">is_subset</span>(<span class="kw-2">&</span><span class="ident">sup</span>), <span class="bool-val">true</span>);
|
||
<span class="ident">set</span>.<span class="ident">insert</span>(<span class="number">4</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">is_subset</span>(<span class="kw-2">&</span><span class="ident">sup</span>), <span class="bool-val">false</span>);</pre></div>
|
||
</div><h4 id="method.is_superset" class="method"><code>pub fn <a href="#method.is_superset" class="fnname">is_superset</a>(&self, other: &Self) -> bool</code><a class="srclink" href="../src/hashbrown/set.rs.html#856-858" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns <code>true</code> if the set is a superset of another,
|
||
i.e., <code>self</code> contains at least all the values in <code>other</code>.</p>
|
||
<h1 id="examples-27" class="section-header"><a href="#examples-27">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">sub</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">new</span>();
|
||
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">is_superset</span>(<span class="kw-2">&</span><span class="ident">sub</span>), <span class="bool-val">false</span>);
|
||
|
||
<span class="ident">set</span>.<span class="ident">insert</span>(<span class="number">0</span>);
|
||
<span class="ident">set</span>.<span class="ident">insert</span>(<span class="number">1</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">is_superset</span>(<span class="kw-2">&</span><span class="ident">sub</span>), <span class="bool-val">false</span>);
|
||
|
||
<span class="ident">set</span>.<span class="ident">insert</span>(<span class="number">2</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">is_superset</span>(<span class="kw-2">&</span><span class="ident">sub</span>), <span class="bool-val">true</span>);</pre></div>
|
||
</div><h4 id="method.insert" class="method"><code>pub fn <a href="#method.insert" class="fnname">insert</a>(&mut self, value: T) -> bool</code><a class="srclink" href="../src/hashbrown/set.rs.html#878-880" title="goto source code">[src]</a></h4><div class="docblock"><p>Adds a value to the set.</p>
|
||
<p>If the set did not have this value present, <code>true</code> is returned.</p>
|
||
<p>If the set did have this value present, <code>false</code> is returned.</p>
|
||
<h1 id="examples-28" class="section-header"><a href="#examples-28">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">new</span>();
|
||
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">insert</span>(<span class="number">2</span>), <span class="bool-val">true</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">insert</span>(<span class="number">2</span>), <span class="bool-val">false</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">len</span>(), <span class="number">1</span>);</pre></div>
|
||
</div><h4 id="method.replace" class="method"><code>pub fn <a href="#method.replace" class="fnname">replace</a>(&mut self, value: T) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><T></code><a class="srclink" href="../src/hashbrown/set.rs.html#898-906" title="goto source code">[src]</a></h4><div class="docblock"><p>Adds a value to the set, replacing the existing value, if any, that is equal to the given
|
||
one. Returns the replaced value.</p>
|
||
<h1 id="examples-29" class="section-header"><a href="#examples-29">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">new</span>();
|
||
<span class="ident">set</span>.<span class="ident">insert</span>(<span class="ident">Vec</span>::<span class="op"><</span><span class="ident">i32</span><span class="op">></span>::<span class="ident">new</span>());
|
||
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">get</span>(<span class="kw-2">&</span>[][..]).<span class="ident">unwrap</span>().<span class="ident">capacity</span>(), <span class="number">0</span>);
|
||
<span class="ident">set</span>.<span class="ident">replace</span>(<span class="ident">Vec</span>::<span class="ident">with_capacity</span>(<span class="number">10</span>));
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">get</span>(<span class="kw-2">&</span>[][..]).<span class="ident">unwrap</span>().<span class="ident">capacity</span>(), <span class="number">10</span>);</pre></div>
|
||
</div><h4 id="method.remove" class="method"><code>pub fn <a href="#method.remove" class="fnname">remove</a><Q: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>>(&mut self, value: &Q) -> bool <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><Q>,<br> Q: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>, </span></code><a class="srclink" href="../src/hashbrown/set.rs.html#930-936" title="goto source code">[src]</a></h4><div class="docblock"><p>Removes a value from the set. Returns whether the value was
|
||
present in the set.</p>
|
||
<p>The value may be any borrowed form of the set's value type, but
|
||
<a href="https://doc.rust-lang.org/std/hash/trait.Hash.html"><code>Hash</code></a> and <a href="https://doc.rust-lang.org/std/cmp/trait.Eq.html"><code>Eq</code></a> on the borrowed form <em>must</em> match those for
|
||
the value type.</p>
|
||
<h1 id="examples-30" class="section-header"><a href="#examples-30">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">new</span>();
|
||
|
||
<span class="ident">set</span>.<span class="ident">insert</span>(<span class="number">2</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">remove</span>(<span class="kw-2">&</span><span class="number">2</span>), <span class="bool-val">true</span>);
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">remove</span>(<span class="kw-2">&</span><span class="number">2</span>), <span class="bool-val">false</span>);</pre></div>
|
||
</div><h4 id="method.take" class="method"><code>pub fn <a href="#method.take" class="fnname">take</a><Q: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>>(&mut self, value: &Q) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><T> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><Q>,<br> Q: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>, </span></code><a class="srclink" href="../src/hashbrown/set.rs.html#957-967" title="goto source code">[src]</a></h4><div class="docblock"><p>Removes and returns the value in the set, if any, that is equal to the given one.</p>
|
||
<p>The value may be any borrowed form of the set's value type, but
|
||
<a href="https://doc.rust-lang.org/std/hash/trait.Hash.html"><code>Hash</code></a> and <a href="https://doc.rust-lang.org/std/cmp/trait.Eq.html"><code>Eq</code></a> on the borrowed form <em>must</em> match those for
|
||
the value type.</p>
|
||
<h1 id="examples-31" class="section-header"><a href="#examples-31">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>].<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">collect</span>();
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">take</span>(<span class="kw-2">&</span><span class="number">2</span>), <span class="prelude-val">Some</span>(<span class="number">2</span>));
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">set</span>.<span class="ident">take</span>(<span class="kw-2">&</span><span class="number">2</span>), <span class="prelude-val">None</span>);</pre></div>
|
||
</div></div><h2 id="trait-implementations" class="small-section-header">Trait Implementations<a href="#trait-implementations" class="anchor"></a></h2><div id="trait-implementations-list"><h3 id="impl-BitAnd%3C%26%27_%20HashSet%3CT%2C%20S%3E%3E" class="impl"><code class="in-band">impl<T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/bit/trait.BitAnd.html" title="trait core::ops::bit::BitAnd">BitAnd</a><&'_ <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S>> for &<a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html" title="trait core::default::Default">Default</a>, </span></code><a href="#impl-BitAnd%3C%26%27_%20HashSet%3CT%2C%20S%3E%3E" class="anchor"></a><a class="srclink" href="../src/hashbrown/set.rs.html#1105-1135" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Output-1" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/ops/bit/trait.BitAnd.html#associatedtype.Output" class="type">Output</a> = <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S></code></h4><div class='docblock'><p>The resulting type after applying the <code>&</code> operator.</p>
|
||
</div><h4 id="method.bitand" class="method"><code>fn <a href="https://doc.rust-lang.org/nightly/core/ops/bit/trait.BitAnd.html#tymethod.bitand" class="fnname">bitand</a>(self, rhs: &<a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S>) -> <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S></code><a class="srclink" href="../src/hashbrown/set.rs.html#1132-1134" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns the intersection of <code>self</code> and <code>rhs</code> as a new <code>HashSet<T, S></code>.</p>
|
||
<h1 id="examples-33" class="section-header"><a href="#examples-33">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">a</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> <span class="macro">vec</span><span class="macro">!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>].<span class="ident">into_iter</span>().<span class="ident">collect</span>();
|
||
<span class="kw">let</span> <span class="ident">b</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> <span class="macro">vec</span><span class="macro">!</span>[<span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>].<span class="ident">into_iter</span>().<span class="ident">collect</span>();
|
||
|
||
<span class="kw">let</span> <span class="ident">set</span> <span class="op">=</span> <span class="kw-2">&</span><span class="ident">a</span> <span class="op">&</span> <span class="kw-2">&</span><span class="ident">b</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">i</span> <span class="op">=</span> <span class="number">0</span>;
|
||
<span class="kw">let</span> <span class="ident">expected</span> <span class="op">=</span> [<span class="number">2</span>, <span class="number">3</span>];
|
||
<span class="kw">for</span> <span class="ident">x</span> <span class="kw">in</span> <span class="kw-2">&</span><span class="ident">set</span> {
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">expected</span>.<span class="ident">contains</span>(<span class="ident">x</span>));
|
||
<span class="ident">i</span> <span class="op">+</span><span class="op">=</span> <span class="number">1</span>;
|
||
}
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">i</span>, <span class="ident">expected</span>.<span class="ident">len</span>());</pre></div>
|
||
</div></div><h3 id="impl-BitOr%3C%26%27_%20HashSet%3CT%2C%20S%3E%3E" class="impl"><code class="in-band">impl<T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/bit/trait.BitOr.html" title="trait core::ops::bit::BitOr">BitOr</a><&'_ <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S>> for &<a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html" title="trait core::default::Default">Default</a>, </span></code><a href="#impl-BitOr%3C%26%27_%20HashSet%3CT%2C%20S%3E%3E" class="anchor"></a><a class="srclink" href="../src/hashbrown/set.rs.html#1073-1103" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Output-2" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/ops/bit/trait.BitOr.html#associatedtype.Output" class="type">Output</a> = <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S></code></h4><div class='docblock'><p>The resulting type after applying the <code>|</code> operator.</p>
|
||
</div><h4 id="method.bitor" class="method"><code>fn <a href="https://doc.rust-lang.org/nightly/core/ops/bit/trait.BitOr.html#tymethod.bitor" class="fnname">bitor</a>(self, rhs: &<a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S>) -> <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S></code><a class="srclink" href="../src/hashbrown/set.rs.html#1100-1102" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns the union of <code>self</code> and <code>rhs</code> as a new <code>HashSet<T, S></code>.</p>
|
||
<h1 id="examples-34" class="section-header"><a href="#examples-34">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">a</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> <span class="macro">vec</span><span class="macro">!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>].<span class="ident">into_iter</span>().<span class="ident">collect</span>();
|
||
<span class="kw">let</span> <span class="ident">b</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> <span class="macro">vec</span><span class="macro">!</span>[<span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>].<span class="ident">into_iter</span>().<span class="ident">collect</span>();
|
||
|
||
<span class="kw">let</span> <span class="ident">set</span> <span class="op">=</span> <span class="kw-2">&</span><span class="ident">a</span> <span class="op">|</span> <span class="kw-2">&</span><span class="ident">b</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">i</span> <span class="op">=</span> <span class="number">0</span>;
|
||
<span class="kw">let</span> <span class="ident">expected</span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>];
|
||
<span class="kw">for</span> <span class="ident">x</span> <span class="kw">in</span> <span class="kw-2">&</span><span class="ident">set</span> {
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">expected</span>.<span class="ident">contains</span>(<span class="ident">x</span>));
|
||
<span class="ident">i</span> <span class="op">+</span><span class="op">=</span> <span class="number">1</span>;
|
||
}
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">i</span>, <span class="ident">expected</span>.<span class="ident">len</span>());</pre></div>
|
||
</div></div><h3 id="impl-BitXor%3C%26%27_%20HashSet%3CT%2C%20S%3E%3E" class="impl"><code class="in-band">impl<T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/bit/trait.BitXor.html" title="trait core::ops::bit::BitXor">BitXor</a><&'_ <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S>> for &<a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html" title="trait core::default::Default">Default</a>, </span></code><a href="#impl-BitXor%3C%26%27_%20HashSet%3CT%2C%20S%3E%3E" class="anchor"></a><a class="srclink" href="../src/hashbrown/set.rs.html#1137-1167" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Output-3" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/ops/bit/trait.BitXor.html#associatedtype.Output" class="type">Output</a> = <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S></code></h4><div class='docblock'><p>The resulting type after applying the <code>^</code> operator.</p>
|
||
</div><h4 id="method.bitxor" class="method"><code>fn <a href="https://doc.rust-lang.org/nightly/core/ops/bit/trait.BitXor.html#tymethod.bitxor" class="fnname">bitxor</a>(self, rhs: &<a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S>) -> <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S></code><a class="srclink" href="../src/hashbrown/set.rs.html#1164-1166" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns the symmetric difference of <code>self</code> and <code>rhs</code> as a new <code>HashSet<T, S></code>.</p>
|
||
<h1 id="examples-35" class="section-header"><a href="#examples-35">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">a</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> <span class="macro">vec</span><span class="macro">!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>].<span class="ident">into_iter</span>().<span class="ident">collect</span>();
|
||
<span class="kw">let</span> <span class="ident">b</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> <span class="macro">vec</span><span class="macro">!</span>[<span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>].<span class="ident">into_iter</span>().<span class="ident">collect</span>();
|
||
|
||
<span class="kw">let</span> <span class="ident">set</span> <span class="op">=</span> <span class="kw-2">&</span><span class="ident">a</span> <span class="op">^</span> <span class="kw-2">&</span><span class="ident">b</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">i</span> <span class="op">=</span> <span class="number">0</span>;
|
||
<span class="kw">let</span> <span class="ident">expected</span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>, <span class="number">4</span>, <span class="number">5</span>];
|
||
<span class="kw">for</span> <span class="ident">x</span> <span class="kw">in</span> <span class="kw-2">&</span><span class="ident">set</span> {
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">expected</span>.<span class="ident">contains</span>(<span class="ident">x</span>));
|
||
<span class="ident">i</span> <span class="op">+</span><span class="op">=</span> <span class="number">1</span>;
|
||
}
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">i</span>, <span class="ident">expected</span>.<span class="ident">len</span>());</pre></div>
|
||
</div></div><h3 id="impl-Clone" class="impl"><code class="in-band">impl<T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>> <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S></code><a href="#impl-Clone" class="anchor"></a><a class="srclink" href="../src/hashbrown/set.rs.html#118-128" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.clone" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone" class="fnname">clone</a>(&self) -> Self</code><a class="srclink" href="../src/hashbrown/set.rs.html#119-123" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
|
||
</div><h4 id="method.clone_from" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from" class="fnname">clone_from</a>(&mut self, source: &Self)</code><a class="srclink" href="../src/hashbrown/set.rs.html#125-127" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
|
||
</div></div><h3 id="impl-Debug" class="impl"><code class="in-band">impl<T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>, </span></code><a href="#impl-Debug" class="anchor"></a><a class="srclink" href="../src/hashbrown/set.rs.html#991-999" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.fmt" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt" class="fnname">fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a><'_>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code><a class="srclink" href="../src/hashbrown/set.rs.html#996-998" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p>
|
||
</div></div><h3 id="impl-Default" class="impl"><code class="in-band">impl<T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html" title="trait core::default::Default">Default</a> for <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S> <span class="where fmt-newline">where<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html" title="trait core::default::Default">Default</a>, </span></code><a href="#impl-Default" class="anchor"></a><a class="srclink" href="../src/hashbrown/set.rs.html#1060-1071" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.default" class="method"><code>fn <a href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html#tymethod.default" class="fnname">default</a>() -> Self</code><a class="srclink" href="../src/hashbrown/set.rs.html#1066-1070" title="goto source code">[src]</a></h4><div class="docblock"><p>Creates an empty <code>HashSet<T, S></code> with the <code>Default</code> value for the hasher.</p>
|
||
</div></div><h3 id="impl-Eq" class="impl"><code class="in-band">impl<T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> for <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>, </span></code><a href="#impl-Eq" class="anchor"></a><a class="srclink" href="../src/hashbrown/set.rs.html#984-989" title="goto source code">[src]</a></h3><div class="impl-items"></div><h3 id="impl-Extend%3C%26%27a%20T%3E" class="impl"><code class="in-band">impl<'a, T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html" title="trait core::iter::traits::collect::Extend">Extend</a><&'a T> for <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S> <span class="where fmt-newline">where<br> T: 'a + <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a>,<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>, </span></code><a href="#impl-Extend%3C%26%27a%20T%3E" class="anchor"></a><a class="srclink" href="../src/hashbrown/set.rs.html#1037-1058" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.extend-1" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#tymethod.extend" class="fnname">extend</a><I: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a><Item = &'a T>>(&mut self, iter: I)</code><a class="srclink" href="../src/hashbrown/set.rs.html#1043-1045" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Extends a collection with the contents of an iterator. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#tymethod.extend">Read more</a></p>
|
||
</div><h4 id="method.extend_one-1" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#method.extend_one" class="fnname">extend_one</a>(&mut self, item: A)</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/iter/traits/collect.rs.html#340" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab unstable"><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>extend_one</code>)</div></div><div class='docblock hidden'><p>Extends a collection with exactly one element.</p>
|
||
</div><h4 id="method.extend_reserve-1" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#method.extend_reserve" class="fnname">extend_reserve</a>(&mut self, additional: usize)</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/iter/traits/collect.rs.html#348" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab unstable"><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>extend_one</code>)</div></div><div class='docblock hidden'><p>Reserves capacity in a collection for the given number of additional elements. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#method.extend_reserve">Read more</a></p>
|
||
</div></div><h3 id="impl-Extend%3CT%3E" class="impl"><code class="in-band">impl<T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html" title="trait core::iter::traits::collect::Extend">Extend</a><T> for <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>, </span></code><a href="#impl-Extend%3CT%3E" class="anchor"></a><a class="srclink" href="../src/hashbrown/set.rs.html#1014-1035" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.extend" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#tymethod.extend" class="fnname">extend</a><I: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a><Item = T>>(&mut self, iter: I)</code><a class="srclink" href="../src/hashbrown/set.rs.html#1020-1022" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Extends a collection with the contents of an iterator. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#tymethod.extend">Read more</a></p>
|
||
</div><h4 id="method.extend_one" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#method.extend_one" class="fnname">extend_one</a>(&mut self, item: A)</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/iter/traits/collect.rs.html#340" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab unstable"><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>extend_one</code>)</div></div><div class='docblock hidden'><p>Extends a collection with exactly one element.</p>
|
||
</div><h4 id="method.extend_reserve" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#method.extend_reserve" class="fnname">extend_reserve</a>(&mut self, additional: usize)</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/iter/traits/collect.rs.html#348" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab unstable"><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>extend_one</code>)</div></div><div class='docblock hidden'><p>Reserves capacity in a collection for the given number of additional elements. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.Extend.html#method.extend_reserve">Read more</a></p>
|
||
</div></div><h3 id="impl-FromIterator%3CT%3E" class="impl"><code class="in-band">impl<T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.FromIterator.html" title="trait core::iter::traits::collect::FromIterator">FromIterator</a><T> for <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html" title="trait core::default::Default">Default</a>, </span></code><a href="#impl-FromIterator%3CT%3E" class="anchor"></a><a class="srclink" href="../src/hashbrown/set.rs.html#1001-1012" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from_iter" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.FromIterator.html#tymethod.from_iter" class="fnname">from_iter</a><I: <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a><Item = T>>(iter: I) -> Self</code><a class="srclink" href="../src/hashbrown/set.rs.html#1007-1011" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Creates a value from an iterator. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.FromIterator.html#tymethod.from_iter">Read more</a></p>
|
||
</div></div><h3 id="impl-IntoIterator" class="impl"><code class="in-band">impl<'a, T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a> for &'a <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S></code><a href="#impl-IntoIterator" class="anchor"></a><a class="srclink" href="../src/hashbrown/set.rs.html#1299-1307" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Item" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" class="type">Item</a> = &'a T</code></h4><div class='docblock'><p>The type of the elements being iterated over.</p>
|
||
</div><h4 id="associatedtype.IntoIter" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" class="type">IntoIter</a> = <a class="struct" href="../hashbrown/hash_set/struct.Iter.html" title="struct hashbrown::hash_set::Iter">Iter</a><'a, T></code></h4><div class='docblock'><p>Which kind of iterator are we turning this into?</p>
|
||
</div><h4 id="method.into_iter" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter" class="fnname">into_iter</a>(self) -> <a class="struct" href="../hashbrown/hash_set/struct.Iter.html" title="struct hashbrown::hash_set::Iter">Iter</a><'a, T><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<div class="notable-traits-tooltiptext"><span class="docblock"><h3 class="notable">Notable traits for <a class="struct" href="../hashbrown/hash_set/struct.Iter.html" title="struct hashbrown::hash_set::Iter">Iter</a><'a, K></h3><code class="content"><span class="where fmt-newline">impl<'a, K> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a> for <a class="struct" href="../hashbrown/hash_set/struct.Iter.html" title="struct hashbrown::hash_set::Iter">Iter</a><'a, K></span><span class="where fmt-newline"> type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" class="type">Item</a> = &'a K;</span></code></span></div></span></span></code><a class="srclink" href="../src/hashbrown/set.rs.html#1304-1306" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Creates an iterator from a value. <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter">Read more</a></p>
|
||
</div></div><h3 id="impl-IntoIterator-1" class="impl"><code class="in-band">impl<T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a> for <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S></code><a href="#impl-IntoIterator-1" class="anchor"></a><a class="srclink" href="../src/hashbrown/set.rs.html#1309-1339" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Item-1" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" class="type">Item</a> = T</code></h4><div class='docblock'><p>The type of the elements being iterated over.</p>
|
||
</div><h4 id="associatedtype.IntoIter-1" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" class="type">IntoIter</a> = <a class="struct" href="../hashbrown/hash_set/struct.IntoIter.html" title="struct hashbrown::hash_set::IntoIter">IntoIter</a><T></code></h4><div class='docblock'><p>Which kind of iterator are we turning this into?</p>
|
||
</div><h4 id="method.into_iter-1" class="method"><code>fn <a href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter" class="fnname">into_iter</a>(self) -> <a class="struct" href="../hashbrown/hash_set/struct.IntoIter.html" title="struct hashbrown::hash_set::IntoIter">IntoIter</a><T><span class="notable-traits"><span class="notable-traits-tooltip">ⓘ<div class="notable-traits-tooltiptext"><span class="docblock"><h3 class="notable">Notable traits for <a class="struct" href="../hashbrown/hash_set/struct.IntoIter.html" title="struct hashbrown::hash_set::IntoIter">IntoIter</a><K></h3><code class="content"><span class="where fmt-newline">impl<K> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html" title="trait core::iter::traits::iterator::Iterator">Iterator</a> for <a class="struct" href="../hashbrown/hash_set/struct.IntoIter.html" title="struct hashbrown::hash_set::IntoIter">IntoIter</a><K></span><span class="where fmt-newline"> type <a href="https://doc.rust-lang.org/nightly/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item" class="type">Item</a> = K;</span></code></span></div></span></span></code><a class="srclink" href="../src/hashbrown/set.rs.html#1334-1338" title="goto source code">[src]</a></h4><div class="docblock"><p>Creates a consuming iterator, that is, one that moves each value out
|
||
of the set in arbitrary order. The set cannot be used after calling
|
||
this.</p>
|
||
<h1 id="examples-36" class="section-header"><a href="#examples-36">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">set</span> <span class="op">=</span> <span class="ident">HashSet</span>::<span class="ident">new</span>();
|
||
<span class="ident">set</span>.<span class="ident">insert</span>(<span class="string">"a"</span>.<span class="ident">to_string</span>());
|
||
<span class="ident">set</span>.<span class="ident">insert</span>(<span class="string">"b"</span>.<span class="ident">to_string</span>());
|
||
|
||
<span class="comment">// Not possible to collect to a Vec<String> with a regular `.iter()`.</span>
|
||
<span class="kw">let</span> <span class="ident">v</span>: <span class="ident">Vec</span><span class="op"><</span><span class="ident">String</span><span class="op">></span> <span class="op">=</span> <span class="ident">set</span>.<span class="ident">into_iter</span>().<span class="ident">collect</span>();
|
||
|
||
<span class="comment">// Will print in an arbitrary order.</span>
|
||
<span class="kw">for</span> <span class="ident">x</span> <span class="kw">in</span> <span class="kw-2">&</span><span class="ident">v</span> {
|
||
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"{}"</span>, <span class="ident">x</span>);
|
||
}</pre></div>
|
||
</div></div><h3 id="impl-PartialEq%3CHashSet%3CT%2C%20S%3E%3E" class="impl"><code class="in-band">impl<T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a><<a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S>> for <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>, </span></code><a href="#impl-PartialEq%3CHashSet%3CT%2C%20S%3E%3E" class="anchor"></a><a class="srclink" href="../src/hashbrown/set.rs.html#970-982" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.eq" class="method hidden"><code>fn <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq" class="fnname">eq</a>(&self, other: &Self) -> bool</code><a class="srclink" href="../src/hashbrown/set.rs.html#975-981" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used
|
||
by <code>==</code>. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq">Read more</a></p>
|
||
</div><h4 id="method.ne" class="method hidden"><code><span class="docblock attributes">#[must_use]</span>pub fn <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#method.ne" class="fnname">ne</a>(&self, other: &Rhs) -> bool</code><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/cmp.rs.html#213" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>This method tests for <code>!=</code>.</p>
|
||
</div></div><h3 id="impl-Sub%3C%26%27_%20HashSet%3CT%2C%20S%3E%3E" class="impl"><code class="in-band">impl<T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html" title="trait core::ops::arith::Sub">Sub</a><&'_ <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S>> for &<a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S> <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/default/trait.Default.html" title="trait core::default::Default">Default</a>, </span></code><a href="#impl-Sub%3C%26%27_%20HashSet%3CT%2C%20S%3E%3E" class="anchor"></a><a class="srclink" href="../src/hashbrown/set.rs.html#1169-1199" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Output" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#associatedtype.Output" class="type">Output</a> = <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S></code></h4><div class='docblock'><p>The resulting type after applying the <code>-</code> operator.</p>
|
||
</div><h4 id="method.sub" class="method"><code>fn <a href="https://doc.rust-lang.org/nightly/core/ops/arith/trait.Sub.html#tymethod.sub" class="fnname">sub</a>(self, rhs: &<a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S>) -> <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S></code><a class="srclink" href="../src/hashbrown/set.rs.html#1196-1198" title="goto source code">[src]</a></h4><div class="docblock"><p>Returns the difference of <code>self</code> and <code>rhs</code> as a new <code>HashSet<T, S></code>.</p>
|
||
<h1 id="examples-32" class="section-header"><a href="#examples-32">Examples</a></h1>
|
||
<div class="example-wrap"><pre class="rust rust-example-rendered">
|
||
<span class="kw">use</span> <span class="ident">hashbrown</span>::<span class="ident">HashSet</span>;
|
||
|
||
<span class="kw">let</span> <span class="ident">a</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> <span class="macro">vec</span><span class="macro">!</span>[<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>].<span class="ident">into_iter</span>().<span class="ident">collect</span>();
|
||
<span class="kw">let</span> <span class="ident">b</span>: <span class="ident">HashSet</span><span class="op"><</span><span class="kw">_</span><span class="op">></span> <span class="op">=</span> <span class="macro">vec</span><span class="macro">!</span>[<span class="number">3</span>, <span class="number">4</span>, <span class="number">5</span>].<span class="ident">into_iter</span>().<span class="ident">collect</span>();
|
||
|
||
<span class="kw">let</span> <span class="ident">set</span> <span class="op">=</span> <span class="kw-2">&</span><span class="ident">a</span> <span class="op">-</span> <span class="kw-2">&</span><span class="ident">b</span>;
|
||
|
||
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">i</span> <span class="op">=</span> <span class="number">0</span>;
|
||
<span class="kw">let</span> <span class="ident">expected</span> <span class="op">=</span> [<span class="number">1</span>, <span class="number">2</span>];
|
||
<span class="kw">for</span> <span class="ident">x</span> <span class="kw">in</span> <span class="kw-2">&</span><span class="ident">set</span> {
|
||
<span class="macro">assert</span><span class="macro">!</span>(<span class="ident">expected</span>.<span class="ident">contains</span>(<span class="ident">x</span>));
|
||
<span class="ident">i</span> <span class="op">+</span><span class="op">=</span> <span class="number">1</span>;
|
||
}
|
||
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">i</span>, <span class="ident">expected</span>.<span class="ident">len</span>());</pre></div>
|
||
</div></div></div><h2 id="synthetic-implementations" class="small-section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor"></a></h2><div id="synthetic-implementations-list"><h3 id="impl-Send" class="impl"><code class="in-band">impl<T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S> <span class="where fmt-newline">where<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>, </span></code><a href="#impl-Send" class="anchor"></a><a class="srclink" href="../src/hashbrown/lib.rs.html#1" title="goto source code">[src]</a></h3><div class="impl-items"></div><h3 id="impl-Sync" class="impl"><code class="in-band">impl<T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S> <span class="where fmt-newline">where<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>, </span></code><a href="#impl-Sync" class="anchor"></a><a class="srclink" href="../src/hashbrown/lib.rs.html#1" title="goto source code">[src]</a></h3><div class="impl-items"></div><h3 id="impl-Unpin" class="impl"><code class="in-band">impl<T, S> <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="../hashbrown/hash_set/struct.HashSet.html" title="struct hashbrown::hash_set::HashSet">HashSet</a><T, S> <span class="where fmt-newline">where<br> S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>, </span></code><a href="#impl-Unpin" class="anchor"></a><a class="srclink" href="../src/hashbrown/lib.rs.html#1" title="goto source code">[src]</a></h3><div class="impl-items"></div></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor"></a></h2><div id="blanket-implementations-list"><h3 id="impl-Any" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T <span class="where fmt-newline">where<br> T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-Any" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#131-135" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.type_id" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fnname">type_id</a>(&self) -> <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#132" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></p>
|
||
</div></div><h3 id="impl-Borrow%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-Borrow%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#207-211" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fnname">borrow</a>(&self) -> &T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#208" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></p>
|
||
</div></div><h3 id="impl-BorrowMut%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a><T> for T <span class="where fmt-newline">where<br> T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>, </span></code><a href="#impl-BorrowMut%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#214-218" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.borrow_mut" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fnname">borrow_mut</a>(&mut self) -> &mut T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#215" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></p>
|
||
</div></div><h3 id="impl-From%3CT%3E" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T> for T</code><a href="#impl-From%3CT%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#545-549" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.from" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fnname">from</a>(t: T) -> T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#546" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||
</div></div><h3 id="impl-Into%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a><T>, </span></code><a href="#impl-Into%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#534-541" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="method.into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fnname">into</a>(self) -> U</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#538" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||
</div></div><h3 id="impl-ToOwned" class="impl"><code class="in-band">impl<T> <a class="trait" href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html" title="trait alloc::borrow::ToOwned">ToOwned</a> for T <span class="where fmt-newline">where<br> T: <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>, </span></code><a href="#impl-ToOwned" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#80-92" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Owned" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#associatedtype.Owned" class="type">Owned</a> = T</code></h4><div class='docblock'><p>The resulting type after obtaining ownership.</p>
|
||
</div><h4 id="method.to_owned" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned" class="fnname">to_owned</a>(&self) -> T</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#85" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Creates owned data from borrowed data, usually by cloning. <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#tymethod.to_owned">Read more</a></p>
|
||
</div><h4 id="method.clone_into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into" class="fnname">clone_into</a>(&self, target: &mut T)</code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/alloc/borrow.rs.html#89" title="goto source code">[src]</a></h4><div class="item-info hidden"><div class="stab unstable"><details><summary><span class="emoji">🔬</span> This is a nightly-only experimental API. (<code>toowned_clone_into</code>)</summary><p>recently added</p>
|
||
</details></div></div><div class='docblock hidden'><p>Uses borrowed data to replace owned data, usually by cloning. <a href="https://doc.rust-lang.org/nightly/alloc/borrow/trait.ToOwned.html#method.clone_into">Read more</a></p>
|
||
</div></div><h3 id="impl-TryFrom%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a><T>, </span></code><a href="#impl-TryFrom%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#582-591" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="type">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||
</div><h4 id="method.try_from" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fnname">try_from</a>(value: U) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><T, <T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><U>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#588" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||
</div></div><h3 id="impl-TryInto%3CU%3E" class="impl"><code class="in-band">impl<T, U> <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a><U> for T <span class="where fmt-newline">where<br> U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>, </span></code><a href="#impl-TryInto%3CU%3E" class="anchor"></a><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#568-577" title="goto source code">[src]</a></h3><div class="impl-items"><h4 id="associatedtype.Error-1" class="type"><code>type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="type">Error</a> = <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></code></h4><div class='docblock'><p>The type returned in the event of a conversion error.</p>
|
||
</div><h4 id="method.try_into" class="method hidden"><code>pub fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fnname">try_into</a>(self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a><U, <U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a><T>>::<a class="type" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>></code><a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#574" title="goto source code">[src]</a></h4><div class='docblock hidden'><p>Performs the conversion.</p>
|
||
</div></div></div></section><section id="search" class="content hidden"></section><section class="footer"></section><div id="rustdoc-vars" data-root-path="../" data-current-crate="hashbrown"></div>
|
||
<script src="../main.js"></script><script defer src="../search-index.js"></script></body></html> |