mentat/num_traits/ops/checked/trait.CheckedShr.html

178 lines
22 KiB
HTML
Raw Permalink Normal View History

2018-08-22 17:04:13 +00:00
<!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="API documentation for the Rust `CheckedShr` trait in crate `num_traits`.">
<meta name="keywords" content="rust, rustlang, rust-lang, CheckedShr">
<title>num_traits::ops::checked::CheckedShr - Rust</title>
<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="../../../dark.css">
<link rel="stylesheet" type="text/css" href="../../../main.css" id="themeStyle">
<script src="../../../storage.js"></script>
</head>
<body class="rustdoc trait">
<!--[if lte IE 8]>
<div class="warning">
This old browser is unsupported and will most likely display funky
things.
</div>
<![endif]-->
<nav class="sidebar">
<div class="sidebar-menu">&#9776;</div>
<p class='location'>Trait CheckedShr</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.checked_shr">checked_shr</a></div><a class="sidebar-title" href="#foreign-impls">Implementations on Foreign Types</a><div class="sidebar-links"><a href="#impl-CheckedShr">i64</a><a href="#impl-CheckedShr">i16</a><a href="#impl-CheckedShr">u16</a><a href="#impl-CheckedShr">u64</a><a href="#impl-CheckedShr">u32</a><a href="#impl-CheckedShr">isize</a><a href="#impl-CheckedShr">u8</a><a href="#impl-CheckedShr">i8</a><a href="#impl-CheckedShr">usize</a><a href="#impl-CheckedShr">i32</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='../../index.html'>num_traits</a>::<wbr><a href='../index.html'>ops</a>::<wbr><a href='index.html'>checked</a></p><script>window.sidebarCurrent = {name: 'CheckedShr', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div>
</nav>
<div class="theme-picker">
<button id="theme-picker" aria-label="Pick another theme!">
<img src="../../../brush.svg" width="18" alt="Pick another theme!">
</button>
<div id="theme-choices"></div>
</div>
<script src="../../../theme.js"></script>
<nav class="sub">
<form class="search-form js-only">
<div class="search-container">
<input class="search-input" name="search"
autocomplete="off"
placeholder="Click or press S to search, ? for more options…"
type="search">
</div>
</form>
</nav>
<section id='main' class="content">
<h1 class='fqn'><span class='in-band'>Trait <a href='../../index.html'>num_traits</a>::<wbr><a href='../index.html'>ops</a>::<wbr><a href='index.html'>checked</a>::<wbr><a class="trait" href=''>CheckedShr</a></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'>&#x2212;</span>]
</a>
</span><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#244-259' title='goto source code'>[src]</a></span></h1>
<pre class='rust trait'>pub trait CheckedShr: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/bit/trait.Shr.html" title="trait core::ops::bit::Shr">Shr</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>, Output = Self&gt; {
fn <a href='#tymethod.checked_shr' class='fnname'>checked_shr</a>(&amp;self, rhs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;;
}</pre><div class='docblock'><p>Performs a right shift that returns <code>None</code> on overflow.</p>
</div>
<h2 id='required-methods' class='small-section-header'>
Required Methods<a href='#required-methods' class='anchor'></a>
</h2>
<div class='methods'>
<h3 id='tymethod.checked_shr' class='method'><span id='checked_shr.v' class='invisible'><code>fn <a href='#tymethod.checked_shr' class='fnname'>checked_shr</a>(&amp;self, rhs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;Self&gt;</code></span></h3><div class='docblock'><p>Shifts a number to the left, checking for overflow. If overflow happens,
<code>None</code> is returned.</p>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">num_traits</span>::<span class="ident">CheckedShr</span>;
<span class="kw">let</span> <span class="ident">x</span>: <span class="ident">u16</span> <span class="op">=</span> <span class="number">0x8000</span>;
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">CheckedShr</span>::<span class="ident">checked_shr</span>(<span class="kw-2">&amp;</span><span class="ident">x</span>, <span class="number">0</span>), <span class="prelude-val">Some</span>(<span class="number">0x8000</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">CheckedShr</span>::<span class="ident">checked_shr</span>(<span class="kw-2">&amp;</span><span class="ident">x</span>, <span class="number">1</span>), <span class="prelude-val">Some</span>(<span class="number">0x4000</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">CheckedShr</span>::<span class="ident">checked_shr</span>(<span class="kw-2">&amp;</span><span class="ident">x</span>, <span class="number">15</span>), <span class="prelude-val">Some</span>(<span class="number">0x0001</span>));
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">CheckedShr</span>::<span class="ident">checked_shr</span>(<span class="kw-2">&amp;</span><span class="ident">x</span>, <span class="number">16</span>), <span class="prelude-val">None</span>);</pre>
</div></div>
<h2 id='foreign-impls' class='small-section-header'>
Implementations on Foreign Types<a href='#foreign-impls' class='anchor'></a>
</h2>
<h3 id='impl-CheckedShr' class='impl'><span class='in-band'><code>impl <a class="trait" href="../../../num_traits/ops/checked/trait.CheckedShr.html" title="trait num_traits::ops::checked::CheckedShr">CheckedShr</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a></code><a href='#impl-CheckedShr' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#218-223' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_shr' class="method"><span id='checked_shr.v-1' class='invisible'><code>fn <a href='#method.checked_shr' class='fnname'>checked_shr</a>(&amp;self, rhs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i64.html">i64</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#220-222' title='goto source code'>[src]</a></span></h4>
</div></span><h3 id='impl-CheckedShr-1' class='impl'><span class='in-band'><code>impl <a class="trait" href="../../../num_traits/ops/checked/trait.CheckedShr.html" title="trait num_traits::ops::checked::CheckedShr">CheckedShr</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a></code><a href='#impl-CheckedShr-1' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#218-223' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_shr-1' class="method"><span id='checked_shr.v-2' class='invisible'><code>fn <a href='#method.checked_shr' class='fnname'>checked_shr</a>(&amp;self, rhs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i16.html">i16</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#220-222' title='goto source code'>[src]</a></span></h4>
</div></span><h3 id='impl-CheckedShr-2' class='impl'><span class='in-band'><code>impl <a class="trait" href="../../../num_traits/ops/checked/trait.CheckedShr.html" title="trait num_traits::ops::checked::CheckedShr">CheckedShr</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</a></code><a href='#impl-CheckedShr-2' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#218-223' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_shr-2' class="method"><span id='checked_shr.v-3' class='invisible'><code>fn <a href='#method.checked_shr' class='fnname'>checked_shr</a>(&amp;self, rhs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#220-222' title='goto source code'>[src]</a></span></h4>
</div></span><h3 id='impl-CheckedShr-3' class='impl'><span class='in-band'><code>impl <a class="trait" href="../../../num_traits/ops/checked/trait.CheckedShr.html" title="trait num_traits::ops::checked::CheckedShr">CheckedShr</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a></code><a href='#impl-CheckedShr-3' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#218-223' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_shr-3' class="method"><span id='checked_shr.v-4' class='invisible'><code>fn <a href='#method.checked_shr' class='fnname'>checked_shr</a>(&amp;self, rhs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u64.html">u64</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#220-222' title='goto source code'>[src]</a></span></h4>
</div></span><h3 id='impl-CheckedShr-4' class='impl'><span class='in-band'><code>impl <a class="trait" href="../../../num_traits/ops/checked/trait.CheckedShr.html" title="trait num_traits::ops::checked::CheckedShr">CheckedShr</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a></code><a href='#impl-CheckedShr-4' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#218-223' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_shr-4' class="method"><span id='checked_shr.v-5' class='invisible'><code>fn <a href='#method.checked_shr' class='fnname'>checked_shr</a>(&amp;self, rhs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#220-222' title='goto source code'>[src]</a></span></h4>
</div></span><h3 id='impl-CheckedShr-5' class='impl'><span class='in-band'><code>impl <a class="trait" href="../../../num_traits/ops/checked/trait.CheckedShr.html" title="trait num_traits::ops::checked::CheckedShr">CheckedShr</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.isize.html">isize</a></code><a href='#impl-CheckedShr-5' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#218-223' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_shr-5' class="method"><span id='checked_shr.v-6' class='invisible'><code>fn <a href='#method.checked_shr' class='fnname'>checked_shr</a>(&amp;self, rhs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.isize.html">isize</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#220-222' title='goto source code'>[src]</a></span></h4>
</div></span><h3 id='impl-CheckedShr-6' class='impl'><span class='in-band'><code>impl <a class="trait" href="../../../num_traits/ops/checked/trait.CheckedShr.html" title="trait num_traits::ops::checked::CheckedShr">CheckedShr</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a></code><a href='#impl-CheckedShr-6' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#218-223' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_shr-6' class="method"><span id='checked_shr.v-7' class='invisible'><code>fn <a href='#method.checked_shr' class='fnname'>checked_shr</a>(&amp;self, rhs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#220-222' title='goto source code'>[src]</a></span></h4>
</div></span><h3 id='impl-CheckedShr-7' class='impl'><span class='in-band'><code>impl <a class="trait" href="../../../num_traits/ops/checked/trait.CheckedShr.html" title="trait num_traits::ops::checked::CheckedShr">CheckedShr</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</a></code><a href='#impl-CheckedShr-7' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#218-223' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_shr-7' class="method"><span id='checked_shr.v-8' class='invisible'><code>fn <a href='#method.checked_shr' class='fnname'>checked_shr</a>(&amp;self, rhs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i8.html">i8</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#220-222' title='goto source code'>[src]</a></span></h4>
</div></span><h3 id='impl-CheckedShr-8' class='impl'><span class='in-band'><code>impl <a class="trait" href="../../../num_traits/ops/checked/trait.CheckedShr.html" title="trait num_traits::ops::checked::CheckedShr">CheckedShr</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a></code><a href='#impl-CheckedShr-8' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#218-223' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_shr-8' class="method"><span id='checked_shr.v-9' class='invisible'><code>fn <a href='#method.checked_shr' class='fnname'>checked_shr</a>(&amp;self, rhs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#220-222' title='goto source code'>[src]</a></span></h4>
</div></span><h3 id='impl-CheckedShr-9' class='impl'><span class='in-band'><code>impl <a class="trait" href="../../../num_traits/ops/checked/trait.CheckedShr.html" title="trait num_traits::ops::checked::CheckedShr">CheckedShr</a> for <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a></code><a href='#impl-CheckedShr-9' class='anchor'></a></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#218-223' title='goto source code'>[src]</a></span></h3>
<span class='docblock autohide'><div class='impl-items'><h4 id='method.checked_shr-9' class="method"><span id='checked_shr.v-10' class='invisible'><code>fn <a href='#method.checked_shr' class='fnname'>checked_shr</a>(&amp;self, rhs: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a>) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.i32.html">i32</a>&gt;</code></span><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/num_traits/ops/checked.rs.html#220-222' title='goto source code'>[src]</a></span></h4>
</div></span>
<h2 id='implementors' class='small-section-header'>
Implementors<a href='#implementors' class='anchor'></a>
</h2>
<ul class='item-list' id='implementors-list'>
</ul><script type="text/javascript" async
src="../../../implementors/num_traits/ops/checked/trait.CheckedShr.js">
</script></section>
<section id='search' class="content hidden"></section>
<section class="footer"></section>
<aside id="help" class="hidden">
<div>
<h1 class="hidden">Help</h1>
<div class="shortcuts">
<h2>Keyboard Shortcuts</h2>
<dl>
<dt><kbd>?</kbd></dt>
<dd>Show this help dialog</dd>
<dt><kbd>S</kbd></dt>
<dd>Focus the search field</dd>
<dt><kbd></kbd></dt>
<dd>Move up in search results</dd>
<dt><kbd></kbd></dt>
<dd>Move down in search results</dd>
<dt><kbd></kbd></dt>
<dd>Switch tab</dd>
<dt><kbd>&#9166;</kbd></dt>
<dd>Go to active search result</dd>
<dt><kbd>+</kbd></dt>
<dd>Expand all sections</dd>
<dt><kbd>-</kbd></dt>
<dd>Collapse all sections</dd>
</dl>
</div>
<div class="infos">
<h2>Search Tricks</h2>
<p>
Prefix searches with a type followed by a colon (e.g.
<code>fn:</code>) to restrict the search to a given type.
</p>
<p>
Accepted types are: <code>fn</code>, <code>mod</code>,
<code>struct</code>, <code>enum</code>,
<code>trait</code>, <code>type</code>, <code>macro</code>,
and <code>const</code>.
</p>
<p>
Search functions by type signature (e.g.
<code>vec -> usize</code> or <code>* -> vec</code>)
</p>
</div>
</div>
</aside>
<script>
window.rootPath = "../../../";
window.currentCrate = "num_traits";
</script>
<script src="../../../main.js"></script>
<script defer src="../../../search-index.js"></script>
</body>
</html>