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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="Helper to make an `ArrayVec`."><title>array_vec in tinyvec - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../static.files/rustdoc-5bc39a1768837dd0.css"><meta name="rustdoc-vars" data-root-path="../" data-static-root-path="../static.files/" data-current-crate="tinyvec" data-themes="" data-resource-suffix="" data-rustdoc-version="1.77.2 (25ef9e3d8 2024-04-09)" data-channel="1.77.2" data-search-js="search-dd67cee4cfa65049.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../static.files/storage-4c98445ec4002617.js"></script><script defer src="sidebar-items.js"></script><script defer src="../static.files/main-48f368f3872407c8.js"></script><noscript><link rel="stylesheet" href="../static.files/noscript-04d5337699b92874.css"></noscript><link rel="alternate icon" type="image/png" href="../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc macro"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle" title="show sidebar"></button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../tinyvec/index.html">tinyvec</a><span class="version">1.6.0</span></h2></div><div class="sidebar-elems"></div></nav><div class="sidebar-resizer"></div>
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<main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><div id="sidebar-button" tabindex="-1"><a href="../tinyvec/all.html" title="show sidebar"></a></div><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" tabindex="-1"><a href="../help.html" title="help">?</a></div><div id="settings-menu" tabindex="-1"><a href="../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Macro <a href="index.html">tinyvec</a>::<wbr><a class="macro" href="#">array_vec</a><button id="copy-path" title="Copy item path to clipboard"><img src="../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../src/tinyvec/arrayvec.rs.html#30-50">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><span class="macro">macro_rules! </span>array_vec {
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(<span class="macro-nonterminal">$array_type</span>:ty => $(<span class="macro-nonterminal">$elem</span>:expr),* $(,)<span class="question-mark">?</span>) => { ... };
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(<span class="macro-nonterminal">$array_type</span>:ty) => { ... };
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($(<span class="macro-nonterminal">$elem</span>:expr),<span class="kw-2">*</span>) => { ... };
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(<span class="macro-nonterminal">$elem</span>:expr; <span class="macro-nonterminal">$n</span>:expr) => { ... };
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() => { ... };
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}</pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Helper to make an <code>ArrayVec</code>.</p>
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<p>You specify the backing array type, and optionally give all the elements you
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want to initially place into the array.</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>tinyvec::<span class="kw-2">*</span>;
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<span class="comment">// The backing array type can be specified in the macro call
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</span><span class="kw">let </span>empty_av = <span class="macro">array_vec!</span>([u8; <span class="number">16</span>]);
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<span class="kw">let </span>some_ints = <span class="macro">array_vec!</span>([i32; <span class="number">4</span>] => <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>);
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<span class="comment">// Or left to inference
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</span><span class="kw">let </span>empty_av: ArrayVec<[u8; <span class="number">10</span>]> = <span class="macro">array_vec!</span>();
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<span class="kw">let </span>some_ints: ArrayVec<[u8; <span class="number">10</span>]> = <span class="macro">array_vec!</span>(<span class="number">5</span>, <span class="number">6</span>, <span class="number">7</span>, <span class="number">8</span>);</code></pre></div>
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