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166 lines
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<meta name="description" content="API documentation for the Rust `PreciseTime` struct in crate `time`.">
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<meta name="keywords" content="rust, rustlang, rust-lang, PreciseTime">
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<title>time::PreciseTime - Rust</title>
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<p class='location'>Struct PreciseTime</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.now">now</a><a href="#method.to">to</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Copy">Copy</a><a href="#impl-Clone">Clone</a></div></div><p class='location'><a href='index.html'>time</a></p><script>window.sidebarCurrent = {name: 'PreciseTime', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
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autocomplete="off"
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placeholder="Click or press ‘S’ to search, ‘?’ for more options…"
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<section id='main' class="content">
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<h1 class='fqn'><span class='in-band'>Struct <a href='index.html'>time</a>::<wbr><a class="struct" href=''>PreciseTime</a></span><span class='out-of-band'><span id='render-detail'>
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<a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">
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[<span class='inner'>−</span>]
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</a>
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</span><a class='srclink' href='../src/time/lib.rs.html#193' title='goto source code'>[src]</a></span></h1>
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<pre class='rust struct'>pub struct PreciseTime(_);</pre><div class='docblock'><p>An opaque structure representing a moment in time.</p>
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<p>The only operation that can be performed on a <code>PreciseTime</code> is the
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calculation of the <code>Duration</code> of time that lies between them.</p>
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<h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1>
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<p>Repeatedly call a function for 1 second:</p>
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<pre class="rust rust-example-rendered">
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<span class="kw">use</span> <span class="ident">time</span>::{<span class="ident">Duration</span>, <span class="ident">PreciseTime</span>};
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<span class="kw">let</span> <span class="ident">start</span> <span class="op">=</span> <span class="ident">PreciseTime</span>::<span class="ident">now</span>();
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<span class="kw">while</span> <span class="ident">start</span>.<span class="ident">to</span>(<span class="ident">PreciseTime</span>::<span class="ident">now</span>()) <span class="op"><</span> <span class="ident">Duration</span>::<span class="ident">seconds</span>(<span class="number">1</span>) {
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<span class="ident">do_some_work</span>();
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}</pre>
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</div>
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<h2 id='methods' class='small-section-header'>
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Methods<a href='#methods' class='anchor'></a>
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</h2>
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<h3 id='impl' class='impl'><span class='in-band'><code>impl <a class="struct" href="../time/struct.PreciseTime.html" title="struct time::PreciseTime">PreciseTime</a></code><a href='#impl' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#195-221' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.now' class="method"><span id='now.v' class='invisible'><code>pub fn <a href='#method.now' class='fnname'>now</a>() -> <a class="struct" href="../time/struct.PreciseTime.html" title="struct time::PreciseTime">PreciseTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#197-199' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Returns a <code>PreciseTime</code> representing the current moment in time.</p>
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</div><h4 id='method.to' class="method"><span id='to.v' class='invisible'><code>pub fn <a href='#method.to' class='fnname'>to</a>(&self, later: <a class="struct" href="../time/struct.PreciseTime.html" title="struct time::PreciseTime">PreciseTime</a>) -> <a class="struct" href="../time/struct.Duration.html" title="struct time::Duration">Duration</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#212-220' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Returns a <code>Duration</code> representing the span of time from the value of
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<code>self</code> to the value of <code>later</code>.</p>
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<h1 id="notes" class="section-header"><a href="#notes">Notes</a></h1>
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<p>If <code>later</code> represents a time before <code>self</code>, the result of this method
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is unspecified.</p>
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<p>If <code>later</code> represents a time more than 293 years after <code>self</code>, the
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result of this method is unspecified.</p>
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</div></div>
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<h2 id='implementations' class='small-section-header'>
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Trait Implementations<a href='#implementations' class='anchor'></a>
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</h2>
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<h3 id='impl-Copy' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Copy.html" title="trait core::marker::Copy">Copy</a> for <a class="struct" href="../time/struct.PreciseTime.html" title="struct time::PreciseTime">PreciseTime</a></code><a href='#impl-Copy' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#192' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'></div><h3 id='impl-Clone' class='impl'><span class='in-band'><code>impl <a class="trait" href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="struct" href="../time/struct.PreciseTime.html" title="struct time::PreciseTime">PreciseTime</a></code><a href='#impl-Clone' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#192' title='goto source code'>[src]</a></span></h3>
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<div class='impl-items'><h4 id='method.clone' class="method"><span id='clone.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone' class='fnname'>clone</a>(&self) -> <a class="struct" href="../time/struct.PreciseTime.html" title="struct time::PreciseTime">PreciseTime</a></code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../src/time/lib.rs.html#192' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p>
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</div><h4 id='method.clone_from' class="method"><span id='clone_from.v' class='invisible'><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from' class='fnname'>clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code></span><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/clone.rs.html#112-114' title='goto source code'>[src]</a></span></h4>
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<div class='docblock'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p>
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