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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Fixed capacity `IndexMap`"><title>IndexMap in heapless::index_map - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Italic-81dc35de.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-MediumItalic-ccf7e434.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2"href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-e56847b5.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="heapless" data-themes="" data-resource-suffix="" data-rustdoc-version="1.91.1 (ed61e7d7e 2025-11-07)" data-channel="1.91.1" data-search-js="search-e256b49e.js" data-stringdex-js="stringdex-c3e638e9.js" data-settings-js="settings-c38705f0.js" ><script src="../../static.files/storage-e2aeef58.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-6dc2a7f3.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-263c88ec.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-eab170b8.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc struct"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><rustdoc-topbar><h2><a href="#">IndexMap</a></h2></rustdoc-topbar><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../heapless/index.html">heapless</a><span class="version">0.9.2</span></h2></div><div class="sidebar-elems"><section id="rustdoc-toc"><h2 class="location"><a href="#">Index<wbr>Map</a></h2><h3><a href="#">Sections</a></h3><ul class="block top-toc"><li><a href="#examples" title="Examples">Examples</a></li></ul><h3><a href="#implementations">Methods</a></h3><ul class="block method"><li><a href="#method.capacity" title="capacity">capacity</a></li><li><a href="#method.clear" title="clear">clear</a></li><li><a href="#method.contains_key" title="contains_key">contains_key</a></li><li><a href="#method.entry" title="entry">entry</a></li><li><a href="#method.first" title="first">first</a></li><li><a href="#method.first_mut" title="first_mut">first_mut</a></li><li><a href="#method.get" title="get">get</a></li><li><a href="#method.get_index" title="get_index">get_index</a></li><li><a href="#method.get_index_mut" title="get_index_mut">get_index_mut</a></li><li><a href="#method.get_index_of" title="get_index_of">get_index_of</a></li><li><a href="#method.get_mut" title="get_mut">get_mut</a></li><li><a href="#method.insert" title="insert">insert</a></li><li><a href="#method.is_empty" title="is_empty">is_empty</a></li><li><a href="#method.is_full" title="is_full">is_full</a></li><li><a href="#method.iter" title="iter">iter</a></li><li><a href="#method.iter_mut" title="iter_mut">iter_mut</a></li><li><a href="#method.keys" title="keys">keys</a></li><li><a href="#method.last" title="last">last</a></li><li><a href="#method.last_mut" title="last_mut">last_mut</a></li><li><a href="#method.len" title="len">len</a></li><li><a href="#method.new" title="new">new</a></li><li><a href="#method.remove" title="remove">remove</a></li><li><a href="#method.retain" title="retain">retain</a></li><li><a href="#method.swap_remove" title="swap_remove">swap_remove</a></li><li><a href="#method.truncate" title="truncate">truncate</a></li><li><a href="#method.values" title="values">values</a></li><li><a href="#method.values_mut" title="values_mut">values_mut</a></li></ul><h3><a href="#trait-implementations">Trait Implementations</a></h3><ul class="block trait-implementation"><li><a href="#impl-Clone-for-IndexMap%3CK,+V,+S,+N%3E" title="Clone">Clone</a></li><li><a href="#impl-Debug-for-IndexMap%3CK,+V,+S,+N%3E" title="Debug">Debug</a></li><li><a href="#impl-Default-for-IndexMap%3CK,+V,+S,+N%3E" title="Default">Default</a></li><li><a href="#impl-Eq-for-IndexMap%3CK,+V,+S,+N%3E" title="Eq">Eq</a></li><li><a href="#impl-Extend%3C(%26K,+%26V)%3E-for-IndexMap%3CK,+V,+S,+N%3E" title="Extend&#60;(&#38;&#39;a K, &#38;&#39;a V)&#62;">Extend&#60;(&#38;&#39;a K, &#38;&#39;a V)&#62;</a></li><li><a href="#impl-Extend%3C(K,+V)%3E-for-IndexMap%3CK,+V,+S,+N%3E" title="Extend&#60;(K, V)&#62;">Extend&#60;(K, V)&#62;</a></li><li><a href="#impl-FromIterator%3C(K,+V)%3E-for-IndexMap%3CK,+V,+S,+N%3E" title="FromIterator&#60;(K, V)&#62;">FromIterator&#60;(K, V)&#62;</a></li><li><a href="#impl-Index%3C%26Q%3E-for-IndexMap%3CK,+V,+S,+N%3E" title="Index&#60;&#38;Q&#62;">Index&#60;&#38;Q&#62;</a></li><li><a href="#impl-IndexMut%3C%26Q%3E-for-IndexMap%3CK,+V,+S,+N%3E" title="IndexMut&#60;&#38;Q&#62;">IndexMut&#60;&#38;Q&#62;</a></li><li><a href="#impl-IntoIterator-for-%26IndexMap%3CK,+V,+S,+N%3E" title="IntoIterator">IntoIterator</a></li><li><a href="#impl-IntoIterator-for-%26mut+IndexMap%3CK,+V,+S,+N%3E" title="IntoIterator">IntoIterator</a></li><li><a href="#impl-IntoIterator-for-IndexMap%3CK,+V,+S,+N%3E" title="IntoIterator">IntoIterator</a></li><li><a href="#impl-PartialEq%3CIndexMap%3CK,+V2,+S2,+N2%3E%3E-for-IndexMap%3CK,+V1,+S1,+N1%3E" title="PartialEq&#60;IndexMap&#60;K, V2, S2, N2&#62;&#62;">PartialEq&#60;IndexMap&#60;K, V2, S2, N2&#62;&#62;</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block synthetic-implementation"><li><a href="#impl-Freeze-for-IndexMap%3CK,+V,+S,+N%3E" title="Freeze">Freeze</a></li><li><a href="#impl-RefUnwindSafe-for-IndexMap%3CK,+V,+S,+N%3E" title="RefUnwindSafe">RefUnwindSafe</a></li><li><a href="#impl-Send-for-IndexMap%3CK,+V,+S,+N%3E" title="Send">Send</a></li><li><a href="#impl-Sync-for-IndexMap%3CK,+V,+S,+N%3E" title="Sync">Sync</a></li><li><a href="#impl-Unpin-for-IndexMap%3CK,+V,+S,+N%3E" title="Unpin">Unpin</a></li><li><a href="#impl-UnwindSafe-for-IndexMap%3CK,+V,+S,+N%3E" title="UnwindSafe">UnwindSafe</a></li></ul><h3><a href="#blanket-implementations">Blanket Implementations</a></h3><ul class="block blanket-implementation"><li><a href="#impl-Any-for-T" title="Any">Any</a></li><li><a href="#impl-Borrow%3CT%3E-for-T" title="Borrow&#60;T&#62;">Borrow&#60;T&#62;</a></li><li><a href="#impl-BorrowMut%3CT%3E-for-T" title="BorrowMut&#60;T&#62;">BorrowMut&#60;T&#62;</a></li><li><a href="#impl-CloneToUninit-for-T" title="CloneToUninit">CloneToUninit</a></li><li><a href="#impl-From%3CT%3E-for-T" title="From&#60;T&#62;">From&#60;T&#62;</a></li><li><a href="#impl-Into%3CU%3E-for-T" title="Into&#60;U&#62;">Into&#60;U&#62;</a></li><li><a href="#impl-TryFrom%3CU%3E-for-T" title="TryFrom&#60;U&#62;">TryFrom&#60;U&#62;</a></li><li><a href="#impl-TryInto%3CU%3E-for-T" title="TryInto&#60;U&#62;">TryInto&#60;U&#62;</a></li></ul></section><div id="rustdoc-modnav"><h2><a href="index.html">In heapless::<wbr>index_<wbr>map</a></h2></div></div></nav><div class="sidebar-resizer" title="Drag to resize sidebar"></div><main><div class="width-limiter"><section id="main-content" class="content"><div class="main-heading"><div class="rustdoc-breadcrumbs"><a href="../index.html">heapless</a>::<wbr><a href="index.html">index_map</a></div><h1>Struct <span class="struct">Index<wbr>Map</span>&nbsp;<button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"><a class="src" href="../../src/heapless/index_map.rs.html#742-746">Source</a> </span></div><pre class="rust item-decl"><code>pub struct IndexMap&lt;K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; { <span class="comment">/* private fields */</span> }</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Fixed capacity <a href="https://docs.rs/indexmap/2/indexmap/map/struct.IndexMap.html"><code>IndexMap</code></a></p>
<p>Note that you cannot use <code>IndexMap</code> directly, since it is generic around the hashing algorithm
in use. Pick a concrete instantiation like <a href="type.FnvIndexMap.html" title="type heapless::index_map::FnvIndexMap"><code>FnvIndexMap</code></a> instead
or create your own.</p>
<p>Note that the capacity of the <code>IndexMap</code> must be a power of 2.</p>
<h2 id="examples"><a class="doc-anchor" href="#examples">§</a>Examples</h2>
<p>Since <code>IndexMap</code> cannot be used directly, we’re using its <code>FnvIndexMap</code> instantiation
for this example.</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="comment">// A hash map with a capacity of 16 key-value pairs allocated on the stack
</span><span class="kw">let </span><span class="kw-2">mut </span>book_reviews = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">16</span>&gt;::new();
<span class="comment">// review some books.
</span>book_reviews
.insert(<span class="string">"Adventures of Huckleberry Finn"</span>, <span class="string">"My favorite book."</span>)
.unwrap();
book_reviews
.insert(<span class="string">"Grimms' Fairy Tales"</span>, <span class="string">"Masterpiece."</span>)
.unwrap();
book_reviews
.insert(<span class="string">"Pride and Prejudice"</span>, <span class="string">"Very enjoyable."</span>)
.unwrap();
book_reviews
.insert(<span class="string">"The Adventures of Sherlock Holmes"</span>, <span class="string">"Eye lyked it alot."</span>)
.unwrap();
<span class="comment">// check for a specific one.
</span><span class="kw">if </span>!book_reviews.contains_key(<span class="string">"Les Misérables"</span>) {
<span class="macro">println!</span>(
<span class="string">"We've got {} reviews, but Les Misérables ain't one."</span>,
book_reviews.len()
);
}
<span class="comment">// oops, this review has a lot of spelling mistakes, let's delete it.
</span>book_reviews.remove(<span class="string">"The Adventures of Sherlock Holmes"</span>);
<span class="comment">// look up the values associated with some keys.
</span><span class="kw">let </span>to_find = [<span class="string">"Pride and Prejudice"</span>, <span class="string">"Alice's Adventure in Wonderland"</span>];
<span class="kw">for </span>book <span class="kw">in </span><span class="kw-2">&amp;</span>to_find {
<span class="kw">match </span>book_reviews.get(book) {
<span class="prelude-val">Some</span>(review) =&gt; <span class="macro">println!</span>(<span class="string">"{}: {}"</span>, book, review),
<span class="prelude-val">None </span>=&gt; <span class="macro">println!</span>(<span class="string">"{} is unreviewed."</span>, book),
}
}
<span class="comment">// iterate over everything.
</span><span class="kw">for </span>(book, review) <span class="kw">in </span><span class="kw-2">&amp;</span>book_reviews {
<span class="macro">println!</span>(<span class="string">"{}: \"{}\""</span>, book, review);
}</code></pre></div></div></details><h2 id="implementations" class="section-header">Implementations<a href="#implementations" class="anchor">§</a></h2><div id="implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-IndexMap%3CK,+V,+BuildHasherDefault%3CS%3E,+N%3E" class="impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#748-761">Source</a><a href="#impl-IndexMap%3CK,+V,+BuildHasherDefault%3CS%3E,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, <a class="struct" href="../../hash32/struct.BuildHasherDefault.html" title="struct hash32::BuildHasherDefault">BuildHasherDefault</a>&lt;S&gt;, N&gt;</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.new" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#750-760">Source</a><h4 class="code-header">pub const fn <a href="#method.new" class="fn">new</a>() -&gt; Self</h4></section></summary><div class="docblock"><p>Creates an empty <code>IndexMap</code>.</p>
</div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IndexMap%3CK,+V,+S,+N%3E" class="impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#763-986">Source</a><a href="#impl-IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.capacity" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#765-767">Source</a><h4 class="code-header">pub fn <a href="#method.capacity" class="fn">capacity</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a></h4></section></summary><div class="docblock"><p>Returns the number of elements the map can hold</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.keys" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#783-787">Source</a><h4 class="code-header">pub fn <a href="#method.keys" class="fn">keys</a>(&amp;self) -&gt; <a class="struct" href="struct.Keys.html" title="struct heapless::index_map::Keys">Keys</a>&lt;'_, K, V&gt; <a href="#" class="tooltip" data-notable-ty="Keys&lt;&#39;_, K, V&gt;">ⓘ</a></h4></section></summary><div class="docblock"><p>Return an iterator over the keys of the map, in insertion order</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>map = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">16</span>&gt;::new();
map.insert(<span class="string">"a"</span>, <span class="number">1</span>).unwrap();
map.insert(<span class="string">"b"</span>, <span class="number">2</span>).unwrap();
map.insert(<span class="string">"c"</span>, <span class="number">3</span>).unwrap();
<span class="kw">for </span>key <span class="kw">in </span>map.keys() {
<span class="macro">println!</span>(<span class="string">"{}"</span>, key);
}</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.values" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#803-807">Source</a><h4 class="code-header">pub fn <a href="#method.values" class="fn">values</a>(&amp;self) -&gt; <a class="struct" href="struct.Values.html" title="struct heapless::index_map::Values">Values</a>&lt;'_, K, V&gt; <a href="#" class="tooltip" data-notable-ty="Values&lt;&#39;_, K, V&gt;">ⓘ</a></h4></section></summary><div class="docblock"><p>Return an iterator over the values of the map, in insertion order</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>map = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">16</span>&gt;::new();
map.insert(<span class="string">"a"</span>, <span class="number">1</span>).unwrap();
map.insert(<span class="string">"b"</span>, <span class="number">2</span>).unwrap();
map.insert(<span class="string">"c"</span>, <span class="number">3</span>).unwrap();
<span class="kw">for </span>val <span class="kw">in </span>map.values() {
<span class="macro">println!</span>(<span class="string">"{}"</span>, val);
}</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.values_mut" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#827-831">Source</a><h4 class="code-header">pub fn <a href="#method.values_mut" class="fn">values_mut</a>(&amp;mut self) -&gt; <a class="struct" href="struct.ValuesMut.html" title="struct heapless::index_map::ValuesMut">ValuesMut</a>&lt;'_, K, V&gt; <a href="#" class="tooltip" data-notable-ty="ValuesMut&lt;&#39;_, K, V&gt;">ⓘ</a></h4></section></summary><div class="docblock"><p>Return an iterator over mutable references to the values of the map, in insertion order</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>map = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">16</span>&gt;::new();
map.insert(<span class="string">"a"</span>, <span class="number">1</span>).unwrap();
map.insert(<span class="string">"b"</span>, <span class="number">2</span>).unwrap();
map.insert(<span class="string">"c"</span>, <span class="number">3</span>).unwrap();
<span class="kw">for </span>val <span class="kw">in </span>map.values_mut() {
<span class="kw-2">*</span>val += <span class="number">10</span>;
}
<span class="kw">for </span>val <span class="kw">in </span>map.values() {
<span class="macro">println!</span>(<span class="string">"{}"</span>, val);
}</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.iter" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#847-851">Source</a><h4 class="code-header">pub fn <a href="#method.iter" class="fn">iter</a>(&amp;self) -&gt; <a class="struct" href="struct.Iter.html" title="struct heapless::index_map::Iter">Iter</a>&lt;'_, K, V&gt; <a href="#" class="tooltip" data-notable-ty="Iter&lt;&#39;_, K, V&gt;">ⓘ</a></h4></section></summary><div class="docblock"><p>Return an iterator over the key-value pairs of the map, in insertion order</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>map = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">16</span>&gt;::new();
map.insert(<span class="string">"a"</span>, <span class="number">1</span>).unwrap();
map.insert(<span class="string">"b"</span>, <span class="number">2</span>).unwrap();
map.insert(<span class="string">"c"</span>, <span class="number">3</span>).unwrap();
<span class="kw">for </span>(key, val) <span class="kw">in </span>map.iter() {
<span class="macro">println!</span>(<span class="string">"key: {} val: {}"</span>, key, val);
}</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.iter_mut" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#871-875">Source</a><h4 class="code-header">pub fn <a href="#method.iter_mut" class="fn">iter_mut</a>(&amp;mut self) -&gt; <a class="struct" href="struct.IterMut.html" title="struct heapless::index_map::IterMut">IterMut</a>&lt;'_, K, V&gt; <a href="#" class="tooltip" data-notable-ty="IterMut&lt;&#39;_, K, V&gt;">ⓘ</a></h4></section></summary><div class="docblock"><p>Return an iterator over the key-value pairs of the map, in insertion order</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>map = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">16</span>&gt;::new();
map.insert(<span class="string">"a"</span>, <span class="number">1</span>).unwrap();
map.insert(<span class="string">"b"</span>, <span class="number">2</span>).unwrap();
map.insert(<span class="string">"c"</span>, <span class="number">3</span>).unwrap();
<span class="kw">for </span>(<span class="kw">_</span>, val) <span class="kw">in </span>map.iter_mut() {
<span class="kw-2">*</span>val = <span class="number">2</span>;
}
<span class="kw">for </span>(key, val) <span class="kw">in </span><span class="kw-2">&amp;</span>map {
<span class="macro">println!</span>(<span class="string">"key: {} val: {}"</span>, key, val);
}</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.first" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#880-885">Source</a><h4 class="code-header">pub fn <a href="#method.first" class="fn">first</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.91.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;(<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;V</a>)&gt;</h4></section></summary><div class="docblock"><p>Get the first key-value pair</p>
<p>Computes in <em>O</em>(1) time</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.first_mut" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#890-895">Source</a><h4 class="code-header">pub fn <a href="#method.first_mut" class="fn">first_mut</a>(&amp;mut self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.91.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;(<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;mut V</a>)&gt;</h4></section></summary><div class="docblock"><p>Get the first key-value pair, with mutable access to the value</p>
<p>Computes in <em>O</em>(1) time</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.last" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#900-905">Source</a><h4 class="code-header">pub fn <a href="#method.last" class="fn">last</a>(&amp;self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.91.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;(<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;V</a>)&gt;</h4></section></summary><div class="docblock"><p>Get the last key-value pair</p>
<p>Computes in <em>O</em>(1) time</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.last_mut" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#910-915">Source</a><h4 class="code-header">pub fn <a href="#method.last_mut" class="fn">last_mut</a>(&amp;mut self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.91.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;(<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;mut V</a>)&gt;</h4></section></summary><div class="docblock"><p>Get the last key-value pair, with mutable access to the value</p>
<p>Computes in <em>O</em>(1) time</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.len" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#929-931">Source</a><h4 class="code-header">pub fn <a href="#method.len" class="fn">len</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a></h4></section></summary><div class="docblock"><p>Return the number of key-value pairs in the map.</p>
<p>Computes in <em>O</em>(1) time.</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>a = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">16</span>&gt;::new();
<span class="macro">assert_eq!</span>(a.len(), <span class="number">0</span>);
a.insert(<span class="number">1</span>, <span class="string">"a"</span>).unwrap();
<span class="macro">assert_eq!</span>(a.len(), <span class="number">1</span>);</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.is_empty" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#945-947">Source</a><h4 class="code-header">pub fn <a href="#method.is_empty" class="fn">is_empty</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.bool.html">bool</a></h4></section></summary><div class="docblock"><p>Returns true if the map contains no elements.</p>
<p>Computes in <em>O</em>(1) time.</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>a = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">16</span>&gt;::new();
<span class="macro">assert!</span>(a.is_empty());
a.insert(<span class="number">1</span>, <span class="string">"a"</span>);
<span class="macro">assert!</span>(!a.is_empty());</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.is_full" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#964-966">Source</a><h4 class="code-header">pub fn <a href="#method.is_full" class="fn">is_full</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.bool.html">bool</a></h4></section></summary><div class="docblock"><p>Returns true if the map is full.</p>
<p>Computes in <em>O</em>(1) time.</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>a = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">4</span>&gt;::new();
<span class="macro">assert!</span>(!a.is_full());
a.insert(<span class="number">1</span>, <span class="string">"a"</span>);
a.insert(<span class="number">2</span>, <span class="string">"b"</span>);
a.insert(<span class="number">3</span>, <span class="string">"c"</span>);
a.insert(<span class="number">4</span>, <span class="string">"d"</span>);
<span class="macro">assert!</span>(a.is_full());</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.clear" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#980-985">Source</a><h4 class="code-header">pub fn <a href="#method.clear" class="fn">clear</a>(&amp;mut self)</h4></section></summary><div class="docblock"><p>Remove all key-value pairs in the map, while preserving its capacity.</p>
<p>Computes in <em>O</em>(n) time.</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>a = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">16</span>&gt;::new();
a.insert(<span class="number">1</span>, <span class="string">"a"</span>);
a.clear();
<span class="macro">assert!</span>(a.is_empty());</code></pre></div></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IndexMap%3CK,+V,+S,+N%3E-1" class="impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#988-1312">Source</a><a href="#impl-IndexMap%3CK,+V,+S,+N%3E-1" class="anchor">§</a><h3 class="code-header">impl&lt;K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,
S: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.entry" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1009-1025">Source</a><h4 class="code-header">pub fn <a href="#method.entry" class="fn">entry</a>(&amp;mut self, key: K) -&gt; <a class="enum" href="enum.Entry.html" title="enum heapless::index_map::Entry">Entry</a>&lt;'_, K, V, N&gt;</h4></section></summary><div class="docblock"><p>Returns an entry for the corresponding key</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::Entry;
<span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>map = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">16</span>&gt;::new();
<span class="kw">if let </span>Entry::Vacant(v) = map.entry(<span class="string">"a"</span>) {
v.insert(<span class="number">1</span>).unwrap();
}
<span class="kw">if let </span>Entry::Occupied(<span class="kw-2">mut </span>o) = map.entry(<span class="string">"a"</span>) {
<span class="macro">println!</span>(<span class="string">"found {}"</span>, <span class="kw-2">*</span>o.get()); <span class="comment">// Prints 1
</span>o.insert(<span class="number">2</span>);
}
<span class="comment">// Prints 2
</span><span class="macro">println!</span>(<span class="string">"val: {}"</span>, <span class="kw-2">*</span>map.get(<span class="string">"a"</span>).unwrap());</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.get" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1042-1049">Source</a><h4 class="code-header">pub fn <a href="#method.get" class="fn">get</a>&lt;Q&gt;(&amp;self, key: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;Q</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.91.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;V</a>&gt;<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;Q&gt;,
Q: ?<a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>,</div></h4></section></summary><div class="docblock"><p>Returns a reference to the value corresponding to the key.</p>
<p>The key may be any borrowed form of the map’s key type, but <code>Hash</code> and <code>Eq</code> on the borrowed
form <em>must</em> match those for the key type.</p>
<p>Computes in <em>O</em>(1) time (average).</p>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>map = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">16</span>&gt;::new();
map.insert(<span class="number">1</span>, <span class="string">"a"</span>).unwrap();
<span class="macro">assert_eq!</span>(map.get(<span class="kw-2">&amp;</span><span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="kw-2">&amp;</span><span class="string">"a"</span>));
<span class="macro">assert_eq!</span>(map.get(<span class="kw-2">&amp;</span><span class="number">2</span>), <span class="prelude-val">None</span>);</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.contains_key" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1068-1074">Source</a><h4 class="code-header">pub fn <a href="#method.contains_key" class="fn">contains_key</a>&lt;Q&gt;(&amp;self, key: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;Q</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.bool.html">bool</a><div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;Q&gt;,
Q: ?<a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,</div></h4></section></summary><div class="docblock"><p>Returns true if the map contains a value for the specified key.</p>
<p>The key may be any borrowed form of the map’s key type, but <code>Hash</code> and <code>Eq</code> on the borrowed
form <em>must</em> match those for the key type.</p>
<p>Computes in <em>O</em>(1) time (average).</p>
<h5 id="examples-1"><a class="doc-anchor" href="#examples-1">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>map = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">8</span>&gt;::new();
map.insert(<span class="number">1</span>, <span class="string">"a"</span>).unwrap();
<span class="macro">assert_eq!</span>(map.contains_key(<span class="kw-2">&amp;</span><span class="number">1</span>), <span class="bool-val">true</span>);
<span class="macro">assert_eq!</span>(map.contains_key(<span class="kw-2">&amp;</span><span class="number">2</span>), <span class="bool-val">false</span>);</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.get_mut" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1095-1105">Source</a><h4 class="code-header">pub fn <a href="#method.get_mut" class="fn">get_mut</a>&lt;'v, Q&gt;(&amp;'v mut self, key: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;Q</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.91.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;'v mut V</a>&gt;<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;Q&gt;,
Q: ?<a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>,</div></h4></section></summary><div class="docblock"><p>Returns a mutable reference to the value corresponding to the key.</p>
<p>The key may be any borrowed form of the map’s key type, but <code>Hash</code> and <code>Eq</code> on the borrowed
form <em>must</em> match those for the key type.</p>
<p>Computes in <em>O</em>(1) time (average).</p>
<h5 id="examples-2"><a class="doc-anchor" href="#examples-2">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>map = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">8</span>&gt;::new();
map.insert(<span class="number">1</span>, <span class="string">"a"</span>).unwrap();
<span class="kw">if let </span><span class="prelude-val">Some</span>(x) = map.get_mut(<span class="kw-2">&amp;</span><span class="number">1</span>) {
<span class="kw-2">*</span>x = <span class="string">"b"</span>;
}
<span class="macro">assert_eq!</span>(map[<span class="kw-2">&amp;</span><span class="number">1</span>], <span class="string">"b"</span>);</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.get_index" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1121-1126">Source</a><h4 class="code-header">pub fn <a href="#method.get_index" class="fn">get_index</a>(&amp;self, index: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.91.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;(<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;V</a>)&gt;</h4></section></summary><div class="docblock"><p>Returns a tuple of references to the key and the value corresponding to the index.</p>
<p>Computes in <em>O</em>(1) time (average).</p>
<h5 id="examples-3"><a class="doc-anchor" href="#examples-3">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>map = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">16</span>&gt;::new();
map.insert(<span class="number">1</span>, <span class="string">"a"</span>).unwrap();
<span class="macro">assert_eq!</span>(map.get_index(<span class="number">0</span>), <span class="prelude-val">Some</span>((<span class="kw-2">&amp;</span><span class="number">1</span>, <span class="kw-2">&amp;</span><span class="string">"a"</span>)));
<span class="macro">assert_eq!</span>(map.get_index(<span class="number">1</span>), <span class="prelude-val">None</span>);</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.get_index_mut" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1144-1149">Source</a><h4 class="code-header">pub fn <a href="#method.get_index_mut" class="fn">get_index_mut</a>(&amp;mut self, index: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.91.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;(<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;mut V</a>)&gt;</h4></section></summary><div class="docblock"><p>Returns a tuple of references to the key and the mutable value corresponding to the index.</p>
<p>Computes in <em>O</em>(1) time (average).</p>
<h5 id="examples-4"><a class="doc-anchor" href="#examples-4">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>map = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">8</span>&gt;::new();
map.insert(<span class="number">1</span>, <span class="string">"a"</span>).unwrap();
<span class="kw">if let </span><span class="prelude-val">Some</span>((<span class="kw">_</span>, x)) = map.get_index_mut(<span class="number">0</span>) {
<span class="kw-2">*</span>x = <span class="string">"b"</span>;
}
<span class="macro">assert_eq!</span>(map[<span class="kw-2">&amp;</span><span class="number">1</span>], <span class="string">"b"</span>);</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.get_index_of" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1170-1176">Source</a><h4 class="code-header">pub fn <a href="#method.get_index_of" class="fn">get_index_of</a>&lt;Q&gt;(&amp;self, key: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;Q</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.91.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt;<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;Q&gt;,
Q: ?<a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>,</div></h4></section></summary><div class="docblock"><p>Returns the index of the key-value pair corresponding to the key.</p>
<p>The key may be any borrowed form of the map’s key type, but <code>Hash</code> and <code>Eq</code> on the borrowed
form <em>must</em> match those for the key type.</p>
<p>Computes in <em>O</em>(1) time (average).</p>
<h5 id="examples-5"><a class="doc-anchor" href="#examples-5">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>map = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">8</span>&gt;::new();
map.insert(<span class="number">1</span>, <span class="string">"a"</span>).unwrap();
map.insert(<span class="number">0</span>, <span class="string">"b"</span>).unwrap();
<span class="macro">assert_eq!</span>(map.get_index_of(<span class="kw-2">&amp;</span><span class="number">0</span>), <span class="prelude-val">Some</span>(<span class="number">1</span>));
<span class="macro">assert_eq!</span>(map.get_index_of(<span class="kw-2">&amp;</span><span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">0</span>));
<span class="macro">assert_eq!</span>(map.get_index_of(<span class="kw-2">&amp;</span><span class="number">2</span>), <span class="prelude-val">None</span>);</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.insert" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1205-1211">Source</a><h4 class="code-header">pub fn <a href="#method.insert" class="fn">insert</a>(&amp;mut self, key: K, value: V) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.91.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;<a class="enum" href="https://doc.rust-lang.org/1.91.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;V&gt;, <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.tuple.html">(K, V)</a>&gt;</h4></section></summary><div class="docblock"><p>Inserts a key-value pair into the map.</p>
<p>If an equivalent key already exists in the map: the key remains and retains in its place in
the order, its corresponding value is updated with <code>value</code> and the older value is returned
inside <code>Some(_)</code>.</p>
<p>If no equivalent key existed in the map: the new key-value pair is inserted, last in order,
and <code>None</code> is returned.</p>
<p>Computes in <em>O</em>(1) time (average).</p>
<p>See also entry if you you want to insert or modify or if you need to get the index of the
corresponding key-value pair.</p>
<h5 id="examples-6"><a class="doc-anchor" href="#examples-6">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>map = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">8</span>&gt;::new();
<span class="macro">assert_eq!</span>(map.insert(<span class="number">37</span>, <span class="string">"a"</span>), <span class="prelude-val">Ok</span>(<span class="prelude-val">None</span>));
<span class="macro">assert_eq!</span>(map.is_empty(), <span class="bool-val">false</span>);
map.insert(<span class="number">37</span>, <span class="string">"b"</span>);
<span class="macro">assert_eq!</span>(map.insert(<span class="number">37</span>, <span class="string">"c"</span>), <span class="prelude-val">Ok</span>(<span class="prelude-val">Some</span>(<span class="string">"b"</span>)));
<span class="macro">assert_eq!</span>(map[<span class="kw-2">&amp;</span><span class="number">37</span>], <span class="string">"c"</span>);</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.remove" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1227-1233">Source</a><h4 class="code-header">pub fn <a href="#method.remove" class="fn">remove</a>&lt;Q&gt;(&amp;mut self, key: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;Q</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.91.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;V&gt;<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;Q&gt;,
Q: ?<a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>,</div></h4></section></summary><div class="docblock"><p>Same as <a href="struct.IndexMap.html#method.swap_remove" title="method heapless::index_map::IndexMap::swap_remove"><code>swap_remove</code></a></p>
<p>Computes in <em>O</em>(1) time (average).</p>
<h5 id="examples-7"><a class="doc-anchor" href="#examples-7">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>map = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">8</span>&gt;::new();
map.insert(<span class="number">1</span>, <span class="string">"a"</span>).unwrap();
<span class="macro">assert_eq!</span>(map.remove(<span class="kw-2">&amp;</span><span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="string">"a"</span>));
<span class="macro">assert_eq!</span>(map.remove(<span class="kw-2">&amp;</span><span class="number">1</span>), <span class="prelude-val">None</span>);</code></pre></div></div></details><details class="toggle method-toggle" open><summary><section id="method.swap_remove" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1243-1250">Source</a><h4 class="code-header">pub fn <a href="#method.swap_remove" class="fn">swap_remove</a>&lt;Q&gt;(&amp;mut self, key: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;Q</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.91.1/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;V&gt;<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;Q&gt;,
Q: ?<a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>,</div></h4></section></summary><div class="docblock"><p>Remove the key-value pair equivalent to <code>key</code> and return its value.</p>
<p>Like <code>Vec::swap_remove</code>, the pair is removed by swapping it with the last element of the map
and popping it off. <strong>This perturbs the position of what used to be the last element!</strong></p>
<p>Return <code>None</code> if <code>key</code> is not in map.</p>
<p>Computes in <em>O</em>(1) time (average).</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.retain" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1255-1260">Source</a><h4 class="code-header">pub fn <a href="#method.retain" class="fn">retain</a>&lt;F&gt;(&amp;mut self, f: F)<div class="where">where
F: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;mut V</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.bool.html">bool</a>,</div></h4></section></summary><div class="docblock"><p>Retains only the elements specified by the predicate.</p>
<p>In other words, remove all pairs <code>(k, v)</code> for which <code>f(&amp;k, &amp;mut v)</code> returns <code>false</code>.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.truncate" class="method"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1286-1297">Source</a><h4 class="code-header">pub fn <a href="#method.truncate" class="fn">truncate</a>(&amp;mut self, len: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>)</h4></section></summary><div class="docblock"><p>Shortens the map, keeping the first <code>len</code> elements and dropping the rest.</p>
<p>If <code>len</code> is greater than the map’s current length, this has no effect.</p>
<p>Computes in <em>O</em>(n) time (average).</p>
<h5 id="examples-8"><a class="doc-anchor" href="#examples-8">§</a>Examples</h5>
<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>heapless::index_map::FnvIndexMap;
<span class="kw">let </span><span class="kw-2">mut </span>map = FnvIndexMap::&lt;<span class="kw">_</span>, <span class="kw">_</span>, <span class="number">8</span>&gt;::new();
map.insert(<span class="number">3</span>, <span class="string">"a"</span>).unwrap();
map.insert(<span class="number">2</span>, <span class="string">"b"</span>).unwrap();
map.insert(<span class="number">1</span>, <span class="string">"c"</span>).unwrap();
map.truncate(<span class="number">2</span>);
<span class="macro">assert_eq!</span>(map.len(), <span class="number">2</span>);
<span class="macro">assert_eq!</span>(map.get(<span class="kw-2">&amp;</span><span class="number">1</span>), <span class="prelude-val">None</span>);
<span class="kw">let </span><span class="kw-2">mut </span>iter = map.iter();
<span class="macro">assert_eq!</span>(iter.next(), <span class="prelude-val">Some</span>((<span class="kw-2">&amp;</span><span class="number">3</span>, <span class="kw-2">&amp;</span><span class="string">"a"</span>)));
<span class="macro">assert_eq!</span>(iter.next(), <span class="prelude-val">Some</span>((<span class="kw-2">&amp;</span><span class="number">2</span>, <span class="kw-2">&amp;</span><span class="string">"b"</span>)));
<span class="macro">assert_eq!</span>(iter.next(), <span class="prelude-val">None</span>);</code></pre></div></div></details></div></details></div><h2 id="trait-implementations" class="section-header">Trait Implementations<a href="#trait-implementations" class="anchor">§</a></h2><div id="trait-implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-Clone-for-IndexMap%3CK,+V,+S,+N%3E" class="impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1338-1350">Source</a><a href="#impl-Clone-for-IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,
V: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,
S: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.clone" class="method trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1344-1349">Source</a><a href="#method.clone" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/clone/trait.Clone.html#tymethod.clone" class="fn">clone</a>(&amp;self) -&gt; Self</h4></section></summary><div class='docblock'>Returns a duplicate of the value. <a href="https://doc.rust-lang.org/1.91.1/core/clone/trait.Clone.html#tymethod.clone">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.clone_from" class="method trait-impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.91.1/src/core/clone.rs.html#245-247">Source</a></span><a href="#method.clone_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/clone/trait.Clone.html#method.clone_from" class="fn">clone_from</a>(&amp;mut self, source: &amp;Self)</h4></section></summary><div class='docblock'>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/1.91.1/core/clone/trait.Clone.html#method.clone_from">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Debug-for-IndexMap%3CK,+V,+S,+N%3E" class="impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1352-1360">Source</a><a href="#impl-Debug-for-IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,
V: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.fmt" class="method trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1357-1359">Source</a><a href="#method.fmt" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/fmt/trait.Debug.html#tymethod.fmt" class="fn">fmt</a>(&amp;self, f: &amp;mut <a class="struct" href="https://doc.rust-lang.org/1.91.1/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>&lt;'_&gt;) -&gt; <a class="type" href="https://doc.rust-lang.org/1.91.1/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></h4></section></summary><div class='docblock'>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/1.91.1/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Default-for-IndexMap%3CK,+V,+S,+N%3E" class="impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1362-1377">Source</a><a href="#impl-Default-for-IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/default/trait.Default.html" title="trait core::default::Default">Default</a> for <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;<div class="where">where
S: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/default/trait.Default.html" title="trait core::default::Default">Default</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.default" class="method trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1366-1376">Source</a><a href="#method.default" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/default/trait.Default.html#tymethod.default" class="fn">default</a>() -&gt; Self</h4></section></summary><div class='docblock'>Returns the “default value” for a type. <a href="https://doc.rust-lang.org/1.91.1/core/default/trait.Default.html#tymethod.default">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Extend%3C(%26K,+%26V)%3E-for-IndexMap%3CK,+V,+S,+N%3E" class="impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1418-1430">Source</a><a href="#impl-Extend%3C(%26K,+%26V)%3E-for-IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'a, K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.Extend.html" title="trait core::iter::traits::collect::Extend">Extend</a>&lt;(<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;'a K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;'a V</a>)&gt; for <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a>,
V: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a>,
S: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.extend-1" class="method trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1424-1429">Source</a><a href="#method.extend-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.Extend.html#tymethod.extend" class="fn">extend</a>&lt;I&gt;(&amp;mut self, iterable: I)<div class="where">where
I: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = (<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;'a K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;'a V</a>)&gt;,</div></h4></section></summary><div class='docblock'>Extends a collection with the contents of an iterator. <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.Extend.html#tymethod.extend">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.extend_one-1" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/iter/traits/collect.rs.html#417">Source</a><a href="#method.extend_one-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.Extend.html#method.extend_one" class="fn">extend_one</a>(&amp;mut self, item: A)</h4></section></summary><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>extend_one</code>)</span></div></span><div class='docblock'>Extends a collection with exactly one element.</div></details><details class="toggle method-toggle" open><summary><section id="method.extend_reserve-1" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/iter/traits/collect.rs.html#425">Source</a><a href="#method.extend_reserve-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.Extend.html#method.extend_reserve" class="fn">extend_reserve</a>(&amp;mut self, additional: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>)</h4></section></summary><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>extend_one</code>)</span></div></span><div class='docblock'>Reserves capacity in a collection for the given number of additional elements. <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.Extend.html#method.extend_reserve">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Extend%3C(K,+V)%3E-for-IndexMap%3CK,+V,+S,+N%3E" class="impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1403-1416">Source</a><a href="#impl-Extend%3C(K,+V)%3E-for-IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.Extend.html" title="trait core::iter::traits::collect::Extend">Extend</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.tuple.html">(K, V)</a>&gt; for <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,
S: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.extend" class="method trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1408-1415">Source</a><a href="#method.extend" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.Extend.html#tymethod.extend" class="fn">extend</a>&lt;I&gt;(&amp;mut self, iterable: I)<div class="where">where
I: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.tuple.html">(K, V)</a>&gt;,</div></h4></section></summary><div class='docblock'>Extends a collection with the contents of an iterator. <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.Extend.html#tymethod.extend">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.extend_one" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/iter/traits/collect.rs.html#417">Source</a><a href="#method.extend_one" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.Extend.html#method.extend_one" class="fn">extend_one</a>(&amp;mut self, item: A)</h4></section></summary><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>extend_one</code>)</span></div></span><div class='docblock'>Extends a collection with exactly one element.</div></details><details class="toggle method-toggle" open><summary><section id="method.extend_reserve" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/iter/traits/collect.rs.html#425">Source</a><a href="#method.extend_reserve" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.Extend.html#method.extend_reserve" class="fn">extend_reserve</a>(&amp;mut self, additional: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>)</h4></section></summary><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>extend_one</code>)</span></div></span><div class='docblock'>Reserves capacity in a collection for the given number of additional elements. <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.Extend.html#method.extend_reserve">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-FromIterator%3C(K,+V)%3E-for-IndexMap%3CK,+V,+S,+N%3E" class="impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1432-1445">Source</a><a href="#impl-FromIterator%3C(K,+V)%3E-for-IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.FromIterator.html" title="trait core::iter::traits::collect::FromIterator">FromIterator</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.tuple.html">(K, V)</a>&gt; for <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,
S: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/default/trait.Default.html" title="trait core::default::Default">Default</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from_iter" class="method trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1437-1444">Source</a><a href="#method.from_iter" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.FromIterator.html#tymethod.from_iter" class="fn">from_iter</a>&lt;I&gt;(iterable: I) -&gt; Self<div class="where">where
I: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a>&lt;Item = <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.tuple.html">(K, V)</a>&gt;,</div></h4></section></summary><div class='docblock'>Creates a value from an iterator. <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.FromIterator.html#tymethod.from_iter">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-Index%3C%26Q%3E-for-IndexMap%3CK,+V,+S,+N%3E" class="impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1314-1325">Source</a><a href="#impl-Index%3C%26Q%3E-for-IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, Q, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/ops/index/trait.Index.html" title="trait core::ops::index::Index">Index</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;Q</a>&gt; for <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;Q&gt;,
Q: ?<a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,
S: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Output" class="associatedtype trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1320">Source</a><a href="#associatedtype.Output" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.91.1/core/ops/index/trait.Index.html#associatedtype.Output" class="associatedtype">Output</a> = V</h4></section></summary><div class='docblock'>The returned type after indexing.</div></details><details class="toggle method-toggle" open><summary><section id="method.index" class="method trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1322-1324">Source</a><a href="#method.index" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/ops/index/trait.Index.html#tymethod.index" class="fn">index</a>(&amp;self, key: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;Q</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;V</a></h4></section></summary><div class='docblock'>Performs the indexing (<code>container[index]</code>) operation. <a href="https://doc.rust-lang.org/1.91.1/core/ops/index/trait.Index.html#tymethod.index">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IndexMut%3C%26Q%3E-for-IndexMap%3CK,+V,+S,+N%3E" class="impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1327-1336">Source</a><a href="#impl-IndexMut%3C%26Q%3E-for-IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, Q, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/ops/index/trait.IndexMut.html" title="trait core::ops::index::IndexMut">IndexMut</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;Q</a>&gt; for <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;Q&gt;,
Q: ?<a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,
S: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.index_mut" class="method trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1333-1335">Source</a><a href="#method.index_mut" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/ops/index/trait.IndexMut.html#tymethod.index_mut" class="fn">index_mut</a>(&amp;mut self, key: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;Q</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;mut V</a></h4></section></summary><div class='docblock'>Performs the mutable indexing (<code>container[index]</code>) operation. <a href="https://doc.rust-lang.org/1.91.1/core/ops/index/trait.IndexMut.html#tymethod.index_mut">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IntoIterator-for-%26IndexMap%3CK,+V,+S,+N%3E" class="impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1501-1508">Source</a><a href="#impl-IntoIterator-for-%26IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'a, K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a> for &amp;'a <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;</h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Item-1" class="associatedtype trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1502">Source</a><a href="#associatedtype.Item-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" class="associatedtype">Item</a> = (<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;'a K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;'a V</a>)</h4></section></summary><div class='docblock'>The type of the elements being iterated over.</div></details><details class="toggle" open><summary><section id="associatedtype.IntoIter-1" class="associatedtype trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1503">Source</a><a href="#associatedtype.IntoIter-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" class="associatedtype">IntoIter</a> = <a class="struct" href="struct.Iter.html" title="struct heapless::index_map::Iter">Iter</a>&lt;'a, K, V&gt;</h4></section></summary><div class='docblock'>Which kind of iterator are we turning this into?</div></details><details class="toggle method-toggle" open><summary><section id="method.into_iter-1" class="method trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1505-1507">Source</a><a href="#method.into_iter-1" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter" class="fn">into_iter</a>(self) -&gt; Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" title="type core::iter::traits::collect::IntoIterator::IntoIter">IntoIter</a></h4></section></summary><div class='docblock'>Creates an iterator from a value. <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IntoIterator-for-%26mut+IndexMap%3CK,+V,+S,+N%3E" class="impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1510-1517">Source</a><a href="#impl-IntoIterator-for-%26mut+IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;'a, K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a> for &amp;'a mut <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;</h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Item-2" class="associatedtype trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1511">Source</a><a href="#associatedtype.Item-2" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" class="associatedtype">Item</a> = (<a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;'a K</a>, <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;'a mut V</a>)</h4></section></summary><div class='docblock'>The type of the elements being iterated over.</div></details><details class="toggle" open><summary><section id="associatedtype.IntoIter-2" class="associatedtype trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1512">Source</a><a href="#associatedtype.IntoIter-2" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" class="associatedtype">IntoIter</a> = <a class="struct" href="struct.IterMut.html" title="struct heapless::index_map::IterMut">IterMut</a>&lt;'a, K, V&gt;</h4></section></summary><div class='docblock'>Which kind of iterator are we turning this into?</div></details><details class="toggle method-toggle" open><summary><section id="method.into_iter-2" class="method trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1514-1516">Source</a><a href="#method.into_iter-2" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter" class="fn">into_iter</a>(self) -&gt; Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" title="type core::iter::traits::collect::IntoIterator::IntoIter">IntoIter</a></h4></section></summary><div class='docblock'>Creates an iterator from a value. <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-IntoIterator-for-IndexMap%3CK,+V,+S,+N%3E" class="impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1490-1499">Source</a><a href="#impl-IntoIterator-for-IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html" title="trait core::iter::traits::collect::IntoIterator">IntoIterator</a> for <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;</h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Item" class="associatedtype trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1491">Source</a><a href="#associatedtype.Item" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" class="associatedtype">Item</a> = <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.tuple.html">(K, V)</a></h4></section></summary><div class='docblock'>The type of the elements being iterated over.</div></details><details class="toggle" open><summary><section id="associatedtype.IntoIter" class="associatedtype trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1492">Source</a><a href="#associatedtype.IntoIter" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" class="associatedtype">IntoIter</a> = <a class="struct" href="struct.IntoIter.html" title="struct heapless::index_map::IntoIter">IntoIter</a>&lt;K, V, N&gt;</h4></section></summary><div class='docblock'>Which kind of iterator are we turning this into?</div></details><details class="toggle method-toggle" open><summary><section id="method.into_iter" class="method trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1494-1498">Source</a><a href="#method.into_iter" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter" class="fn">into_iter</a>(self) -&gt; Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.IntoIter" title="type core::iter::traits::collect::IntoIterator::IntoIter">IntoIter</a></h4></section></summary><div class='docblock'>Creates an iterator from a value. <a href="https://doc.rust-lang.org/1.91.1/core/iter/traits/collect/trait.IntoIterator.html#tymethod.into_iter">Read more</a></div></details></div></details><details class="toggle implementors-toggle" open><summary><section id="impl-PartialEq%3CIndexMap%3CK,+V2,+S2,+N2%3E%3E-for-IndexMap%3CK,+V1,+S1,+N1%3E" class="impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1379-1393">Source</a><a href="#impl-PartialEq%3CIndexMap%3CK,+V2,+S2,+N2%3E%3E-for-IndexMap%3CK,+V1,+S1,+N1%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, V1, V2, S1, S2, const N1: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>, const N2: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a>&lt;<a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V2, S2, N2&gt;&gt; for <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V1, S1, N1&gt;<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,
V1: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a>&lt;V2&gt;,
S1: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,
S2: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.eq" class="method trait-impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1387-1392">Source</a><a href="#method.eq" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.PartialEq.html#tymethod.eq" class="fn">eq</a>(&amp;self, other: &amp;<a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V2, S2, N2&gt;) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>Tests for <code>self</code> and <code>other</code> values to be equal, and is used by <code>==</code>.</div></details><details class="toggle method-toggle" open><summary><section id="method.ne" class="method trait-impl"><span class="rightside"><span class="since" title="Stable since Rust version 1.0.0">1.0.0</span> · <a class="src" href="https://doc.rust-lang.org/1.91.1/src/core/cmp.rs.html#264">Source</a></span><a href="#method.ne" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.PartialEq.html#method.ne" class="fn">ne</a>(&amp;self, other: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;Rhs</a>) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.bool.html">bool</a></h4></section></summary><div class='docblock'>Tests for <code>!=</code>. The default implementation is almost always sufficient,
and should not be overridden without very good reason.</div></details></div></details><section id="impl-Eq-for-IndexMap%3CK,+V,+S,+N%3E" class="impl"><a class="src rightside" href="../../src/heapless/index_map.rs.html#1395-1401">Source</a><a href="#impl-Eq-for-IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> for <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;<div class="where">where
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> + <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.Hash.html" title="trait core::hash::Hash">Hash</a>,
V: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a>,
S: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/hash/trait.BuildHasher.html" title="trait core::hash::BuildHasher">BuildHasher</a>,</div></h3></section></div><h2 id="synthetic-implementations" class="section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor">§</a></h2><div id="synthetic-implementations-list"><section id="impl-Freeze-for-IndexMap%3CK,+V,+S,+N%3E" class="impl"><a href="#impl-Freeze-for-IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Freeze.html" title="trait core::marker::Freeze">Freeze</a> for <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;<div class="where">where
S: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Freeze.html" title="trait core::marker::Freeze">Freeze</a>,
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Freeze.html" title="trait core::marker::Freeze">Freeze</a>,
V: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Freeze.html" title="trait core::marker::Freeze">Freeze</a>,</div></h3></section><section id="impl-RefUnwindSafe-for-IndexMap%3CK,+V,+S,+N%3E" class="impl"><a href="#impl-RefUnwindSafe-for-IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;<div class="where">where
S: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,
V: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,</div></h3></section><section id="impl-Send-for-IndexMap%3CK,+V,+S,+N%3E" class="impl"><a href="#impl-Send-for-IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;<div class="where">where
S: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,
V: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,</div></h3></section><section id="impl-Sync-for-IndexMap%3CK,+V,+S,+N%3E" class="impl"><a href="#impl-Sync-for-IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;<div class="where">where
S: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,
V: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,</div></h3></section><section id="impl-Unpin-for-IndexMap%3CK,+V,+S,+N%3E" class="impl"><a href="#impl-Unpin-for-IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;<div class="where">where
S: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,
V: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,</div></h3></section><section id="impl-UnwindSafe-for-IndexMap%3CK,+V,+S,+N%3E" class="impl"><a href="#impl-UnwindSafe-for-IndexMap%3CK,+V,+S,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;K, V, S, const N: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.usize.html">usize</a>&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.IndexMap.html" title="struct heapless::index_map::IndexMap">IndexMap</a>&lt;K, V, S, N&gt;<div class="where">where
S: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,
K: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,
V: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,</div></h3></section></div><h2 id="blanket-implementations" class="section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor">§</a></h2><div id="blanket-implementations-list"><details class="toggle implementors-toggle"><summary><section id="impl-Any-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/any.rs.html#138">Source</a><a href="#impl-Any-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<div class="where">where
T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/any.rs.html#139">Source</a><a href="#method.type_id" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/any/trait.Any.html#tymethod.type_id" class="fn">type_id</a>(&amp;self) -&gt; <a class="struct" href="https://doc.rust-lang.org/1.91.1/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/1.91.1/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/borrow.rs.html#212">Source</a><a href="#impl-Borrow%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;T&gt; for T<div class="where">where
T: ?<a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/borrow.rs.html#214">Source</a><a href="#method.borrow" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/borrow/trait.Borrow.html#tymethod.borrow" class="fn">borrow</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;T</a></h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.91.1/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/borrow.rs.html#221">Source</a><a href="#impl-BorrowMut%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a>&lt;T&gt; for T<div class="where">where
T: ?<a class="trait" href="https://doc.rust-lang.org/1.91.1/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/borrow.rs.html#222">Source</a><a href="#method.borrow_mut" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fn">borrow_mut</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.reference.html">&amp;mut T</a></h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/1.91.1/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-CloneToUninit-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/clone.rs.html#515">Source</a><a href="#impl-CloneToUninit-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/clone/trait.CloneToUninit.html" title="trait core::clone::CloneToUninit">CloneToUninit</a> for T<div class="where">where
T: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a>,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.clone_to_uninit" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/clone.rs.html#517">Source</a><a href="#method.clone_to_uninit" class="anchor">§</a><h4 class="code-header">unsafe fn <a href="https://doc.rust-lang.org/1.91.1/core/clone/trait.CloneToUninit.html#tymethod.clone_to_uninit" class="fn">clone_to_uninit</a>(&amp;self, dest: <a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.pointer.html">*mut </a><a class="primitive" href="https://doc.rust-lang.org/1.91.1/core/primitive.u8.html">u8</a>)</h4></section></summary><span class="item-info"><div class="stab unstable"><span class="emoji">🔬</span><span>This is a nightly-only experimental API. (<code>clone_to_uninit</code>)</span></div></span><div class='docblock'>Performs copy-assignment from <code>self</code> to <code>dest</code>. <a href="https://doc.rust-lang.org/1.91.1/core/clone/trait.CloneToUninit.html#tymethod.clone_to_uninit">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/convert/mod.rs.html#785">Source</a><a href="#impl-From%3CT%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/convert/mod.rs.html#788">Source</a><a href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(t: T) -&gt; T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/convert/mod.rs.html#767-769">Source</a><a href="#impl-Into%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/convert/mod.rs.html#777">Source</a><a href="#method.into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/convert/trait.Into.html#tymethod.into" class="fn">into</a>(self) -&gt; U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
<p>That is, this conversion is whatever the implementation of
<code><a href="https://doc.rust-lang.org/1.91.1/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; for U</code> chooses to do.</p>
</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/convert/mod.rs.html#827-829">Source</a><a href="#impl-TryFrom%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/convert/mod.rs.html#831">Source</a><a href="#associatedtype.Error-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.91.1/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/1.91.1/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/convert/mod.rs.html#834">Source</a><a href="#method.try_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/convert/trait.TryFrom.html#tymethod.try_from" class="fn">try_from</a>(value: U) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.91.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, &lt;T as <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/1.91.1/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-T" class="impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/convert/mod.rs.html#811-813">Source</a><a href="#impl-TryInto%3CU%3E-for-T" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a>&lt;U&gt; for T<div class="where">where
U: <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;,</div></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/convert/mod.rs.html#815">Source</a><a href="#associatedtype.Error" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/1.91.1/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = &lt;U as <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/1.91.1/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl"><a class="src rightside" href="https://doc.rust-lang.org/1.91.1/src/core/convert/mod.rs.html#818">Source</a><a href="#method.try_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/1.91.1/core/convert/trait.TryInto.html#tymethod.try_into" class="fn">try_into</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/1.91.1/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;U, &lt;U as <a class="trait" href="https://doc.rust-lang.org/1.91.1/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/1.91.1/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details></div><script type="text/json" id="notable-traits-data">{"Iter<'_, K, V>":"<h3>Notable traits for <code><a class=\"struct\" href=\"struct.Iter.html\" title=\"struct heapless::index_map::Iter\">Iter</a>&lt;'a, K, V&gt;</code></h3><pre><code><div class=\"where\">impl&lt;'a, K, V&gt; <a class=\"trait\" href=\"https://doc.rust-lang.org/1.91.1/core/iter/traits/iterator/trait.Iterator.html\" title=\"trait core::iter::traits::iterator::Iterator\">Iterator</a> for <a class=\"struct\" href=\"struct.Iter.html\" title=\"struct heapless::index_map::Iter\">Iter</a>&lt;'a, K, V&gt;</div><div class=\"where\"> type <a href=\"https://doc.rust-lang.org/1.91.1/core/iter/traits/iterator/trait.Iterator.html#associatedtype.Item\" class=\"associatedtype\">Item</a> = (<a class=\"primitive\" href=\"https://doc.rust-lang.org/1.91.1/core/primitive.reference.html\">&amp;'a K</a>, <a class=\"primitive\" href=\"https://doc.rust-lang.org/1.91.1/core/primitive.reference.html\">&amp;'a V</a>);</div>","IterMut<'_, K, V>":"<h3>Notable traits for <code><a class=\"struct\" href=\"struct.IterMut.html\" title=\"struct heapless::index_map::IterMut\">IterMut</a>&lt;'a, K, V&gt;</code></h3><pre><code><div class=\"where\">impl&lt;'a, K, V&gt; 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