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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="Same as `join`, but with more futures."><title>join3 in futures::future - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-ac92e1bbe349e143.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="futures" data-themes="" data-resource-suffix="" data-rustdoc-version="1.76.0 (07dca489a 2024-02-04)" data-channel="1.76.0" data-search-js="search-2b6ce74ff89ae146.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../../static.files/storage-f2adc0d6ca4d09fb.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-305769736d49e732.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-feafe1bb7466e4bd.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc fn"><!--[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">☰</button></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../futures/index.html">futures</a><span class="version">0.3.28</span></h2></div><div class="sidebar-elems"><h2><a href="index.html">In futures::future</a></h2></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="../../futures/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>Function <a href="../index.html">futures</a>::<wbr><a href="index.html">future</a>::<wbr><a class="fn" href="#">join3</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/futures_util/future/join.rs.html#136-144">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><pre class="rust item-decl"><code>pub fn join3<Fut1, Fut2, Fut3>(
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future1: Fut1,
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future2: Fut2,
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future3: Fut3
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) -> <a class="struct" href="struct.Join3.html" title="struct futures::future::Join3">Join3</a><Fut1, Fut2, Fut3> <a href="#" class="tooltip" data-notable-ty="Join3<Fut1, Fut2, Fut3>">ⓘ</a><div class="where">where
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Fut1: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,
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Fut2: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,
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Fut3: <a class="trait" href="trait.Future.html" title="trait futures::future::Future">Future</a>,</div></code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Same as <a href="fn.join.html" title="fn futures::future::join"><code>join</code></a>, but with more futures.</p>
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<h2 id="examples"><a href="#examples">Examples</a></h2>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>futures::future;
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<span class="kw">let </span>a = <span class="kw">async </span>{ <span class="number">1 </span>};
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<span class="kw">let </span>b = <span class="kw">async </span>{ <span class="number">2 </span>};
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<span class="kw">let </span>c = <span class="kw">async </span>{ <span class="number">3 </span>};
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<span class="kw">let </span>tuple = future::join3(a, b, c);
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<span class="macro">assert_eq!</span>(tuple.<span class="kw">await</span>, (<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>));</code></pre></div>
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</div></details><script type="text/json" id="notable-traits-data">{"Join3<Fut1, Fut2, Fut3>":"<h3>Notable traits for <code><a class=\"struct\" href=\"struct.Join3.html\" title=\"struct futures::future::Join3\">Join3</a><Fut1, Fut2, Fut3></code></h3><pre><code><div class=\"where\">impl<Fut1, Fut2, Fut3> <a class=\"trait\" href=\"trait.Future.html\" title=\"trait futures::future::Future\">Future</a> for <a class=\"struct\" href=\"struct.Join3.html\" title=\"struct futures::future::Join3\">Join3</a><Fut1, Fut2, Fut3><div class=\"where\">where\n Fut1: <a class=\"trait\" href=\"trait.Future.html\" title=\"trait futures::future::Future\">Future</a>,\n Fut2: <a class=\"trait\" href=\"trait.Future.html\" title=\"trait futures::future::Future\">Future</a>,\n Fut3: <a class=\"trait\" href=\"trait.Future.html\" title=\"trait futures::future::Future\">Future</a>,</div></div><div class=\"where\"> type <a href=\"trait.Future.html#associatedtype.Output\" class=\"associatedtype\">Output</a> = (<Fut1 as <a class=\"trait\" href=\"trait.Future.html\" title=\"trait futures::future::Future\">Future</a>>::<a class=\"associatedtype\" href=\"trait.Future.html#associatedtype.Output\" title=\"type futures::future::Future::Output\">Output</a>, <Fut2 as <a class=\"trait\" href=\"trait.Future.html\" title=\"trait futures::future::Future\">Future</a>>::<a class=\"associatedtype\" href=\"trait.Future.html#associatedtype.Output\" title=\"type futures::future::Future::Output\">Output</a>, <Fut3 as <a class=\"trait\" href=\"trait.Future.html\" title=\"trait futures::future::Future\">Future</a>>::<a class=\"associatedtype\" href=\"trait.Future.html#associatedtype.Output\" title=\"type futures::future::Future::Output\">Output</a>);</div>"}</script></section></div></main></body></html> |