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31 lines
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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="Construct a `Time` with a statically known value."><meta name="keywords" content="rust, rustlang, rust-lang, time"><title>time in time::macros - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../ayu.css" disabled><link rel="stylesheet" type="text/css" href="../../dark.css" disabled><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script src="../../crates.js"></script><script defer src="../../main.js"></script>
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<noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="shortcut icon" href="https://avatars0.githubusercontent.com/u/55999857"></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="sidebar"><div class="sidebar-menu" role="button">☰</div><a class="sidebar-logo" href="../../time/index.html"><div class="logo-container"><img src="https://avatars0.githubusercontent.com/u/55999857" alt="logo"></div>
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</a><div class="sidebar-elems"><h2 class="location">Other items in<br><a href="../index.html">time</a>::<wbr><a href="index.html">macros</a></h2><div id="sidebar-vars" data-name="time" data-ty="macro" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><main><div class="width-limiter"><div class="sub-container"><a class="sub-logo-container" href="../../time/index.html"><img src="https://avatars0.githubusercontent.com/u/55999857" alt="logo"></a><nav class="sub"><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img width="18" height="18" alt="Pick another theme!" src="../../brush.svg"></button><div id="theme-choices" role="menu"></div></div><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../../settings.html" title="settings"><img width="18" height="18" alt="Change settings" src="../../wheel.svg"></a></div></form></nav></div><section id="main-content" class="content"><h1 class="fqn"><span class="in-band">Macro <a href="../index.html">time</a>::<wbr><a href="index.html">macros</a>::<wbr><a class="macro" href="#">time</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../../clipboard.svg" width="19" height="18" alt="Copy item path"></button></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../src/time_macros/lib.rs.html#51" title="goto source code">[src]</a></span></h1><div class="docblock item-decl"><pre class="rust macro"><code>time!() { /* proc-macro */ }</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Construct a <a href="../struct.Time.html"><code>Time</code></a> with a statically known value.</p>
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<p>The resulting expression can be used in <code>const</code> or <code>static</code> declarations.</p>
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<p>Hours and minutes must be provided, while seconds defaults to zero. AM/PM is allowed
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(either uppercase or lowercase). Any number of subsecond digits may be provided (though any
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past nine will be discarded).</p>
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<p>All components are validated at compile-time. An error will be raised if any value is
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invalid.</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="macro">assert_eq!</span>(<span class="macro">time!</span>(<span class="number">0</span>:<span class="number">00</span>), <span class="ident">Time::from_hms</span>(<span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>)<span class="question-mark">?</span>);
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<span class="macro">assert_eq!</span>(<span class="macro">time!</span>(<span class="number">1</span>:<span class="number">02</span>:<span class="number">03</span>), <span class="ident">Time::from_hms</span>(<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>)<span class="question-mark">?</span>);
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<span class="macro">assert_eq!</span>(
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<span class="macro">time!</span>(<span class="number">1</span>:<span class="number">02</span>:<span class="number">03.004_005_006</span>),
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<span class="ident">Time::from_hms_nano</span>(<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4_005_006</span>)<span class="question-mark">?</span>
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);
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<span class="macro">assert_eq!</span>(<span class="macro">time!</span>(<span class="number">12</span>:<span class="number">00</span> <span class="ident">am</span>), <span class="ident">Time::from_hms</span>(<span class="number">0</span>, <span class="number">0</span>, <span class="number">0</span>)<span class="question-mark">?</span>);
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<span class="macro">assert_eq!</span>(<span class="macro">time!</span>(<span class="number">1</span>:<span class="number">02</span>:<span class="number">03</span> <span class="ident">am</span>), <span class="ident">Time::from_hms</span>(<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>)<span class="question-mark">?</span>);
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<span class="macro">assert_eq!</span>(
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<span class="macro">time!</span>(<span class="number">1</span>:<span class="number">02</span>:<span class="number">03.004_005_006</span> <span class="ident">am</span>),
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<span class="ident">Time::from_hms_nano</span>(<span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4_005_006</span>)<span class="question-mark">?</span>
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);
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<span class="macro">assert_eq!</span>(<span class="macro">time!</span>(<span class="number">12</span> <span class="ident">pm</span>), <span class="ident">Time::from_hms</span>(<span class="number">12</span>, <span class="number">0</span>, <span class="number">0</span>)<span class="question-mark">?</span>);
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<span class="macro">assert_eq!</span>(<span class="macro">time!</span>(<span class="number">12</span>:<span class="number">00</span> <span class="ident">pm</span>), <span class="ident">Time::from_hms</span>(<span class="number">12</span>, <span class="number">0</span>, <span class="number">0</span>)<span class="question-mark">?</span>);
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<span class="macro">assert_eq!</span>(<span class="macro">time!</span>(<span class="number">1</span>:<span class="number">02</span>:<span class="number">03</span> <span class="ident">pm</span>), <span class="ident">Time::from_hms</span>(<span class="number">13</span>, <span class="number">2</span>, <span class="number">3</span>)<span class="question-mark">?</span>);
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<span class="macro">assert_eq!</span>(
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<span class="macro">time!</span>(<span class="number">1</span>:<span class="number">02</span>:<span class="number">03.004_005_006</span> <span class="ident">pm</span>),
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<span class="ident">Time::from_hms_nano</span>(<span class="number">13</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4_005_006</span>)<span class="question-mark">?</span>
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);</code></pre><a class="test-arrow" target="_blank" href="https://play.rust-lang.org?code=%23!%5Ballow(unused)%5D%0Aextern%20crate%20r%23time%3B%0Afn%20main()%20%7B%20fn%20_inner()%20-%3E%20Result%3C()%2C%20impl%20core%3A%3Afmt%3A%3ADebug%3E%20%7B%0Ause%20time%3A%3A%7BTime%2C%20macros%3A%3Atime%7D%3B%0Aassert_eq!(time!(0%3A00)%2C%20Time%3A%3Afrom_hms(0%2C%200%2C%200)%3F)%3B%0Aassert_eq!(time!(1%3A02%3A03)%2C%20Time%3A%3Afrom_hms(1%2C%202%2C%203)%3F)%3B%0Aassert_eq!(%0A%20%20%20%20time!(1%3A02%3A03.004_005_006)%2C%0A%20%20%20%20Time%3A%3Afrom_hms_nano(1%2C%202%2C%203%2C%204_005_006)%3F%0A)%3B%0Aassert_eq!(time!(12%3A00%20am)%2C%20Time%3A%3Afrom_hms(0%2C%200%2C%200)%3F)%3B%0Aassert_eq!(time!(1%3A02%3A03%20am)%2C%20Time%3A%3Afrom_hms(1%2C%202%2C%203)%3F)%3B%0Aassert_eq!(%0A%20%20%20%20time!(1%3A02%3A03.004_005_006%20am)%2C%0A%20%20%20%20Time%3A%3Afrom_hms_nano(1%2C%202%2C%203%2C%204_005_006)%3F%0A)%3B%0Aassert_eq!(time!(12%20pm)%2C%20Time%3A%3Afrom_hms(12%2C%200%2C%200)%3F)%3B%0Aassert_eq!(time!(12%3A00%20pm)%2C%20Time%3A%3Afrom_hms(12%2C%200%2C%200)%3F)%3B%0Aassert_eq!(time!(1%3A02%3A03%20pm)%2C%20Time%3A%3Afrom_hms(13%2C%202%2C%203)%3F)%3B%0Aassert_eq!(%0A%20%20%20%20time!(1%3A02%3A03.004_005_006%20pm)%2C%0A%20%20%20%20Time%3A%3Afrom_hms_nano(13%2C%202%2C%203%2C%204_005_006)%3F%0A)%3B%0AOk%3A%3A%3C_%2C%20time%3A%3AError%3E(())%0A%7D%20_inner().unwrap()%20%7D&edition=2018">Run</a></div>
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