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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="Defines a `GenericSequence` which can be shortened by removing the first or last element from it."><meta name="keywords" content="rust, rustlang, rust-lang, Shorten"><title>Shorten in generic_array::sequence - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-1f7d512b176f0f72.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" 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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 trait"><!--[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><a class="sidebar-logo" href="../../generic_array/index.html"><div class="logo-container"><img class="rust-logo" src="../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></div></a><h2></h2></nav><nav class="sidebar"><a class="sidebar-logo" href="../../generic_array/index.html"><div class="logo-container"><img class="rust-logo" src="../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></div></a><h2 class="location"><a href="#">Shorten</a></h2><div class="sidebar-elems"><section><h3><a href="#required-associated-types">Required Associated Types</a></h3><ul class="block"><li><a href="#associatedtype.Shorter">Shorter</a></li></ul><h3><a href="#required-methods">Required Methods</a></h3><ul class="block"><li><a href="#tymethod.pop_back">pop_back</a></li><li><a href="#tymethod.pop_front">pop_front</a></li></ul><h3><a href="#implementors">Implementors</a></h3></section><h2><a href="index.html">In generic_array::sequence</a></h2></div></nav><main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><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" title="help" tabindex="-1"><a href="../../help.html">?</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-5ec35bf9ca753509.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1 class="fqn">Trait <a href="../index.html">generic_array</a>::<wbr><a href="index.html">sequence</a>::<wbr><a class="trait" href="#">Shorten</a><button id="copy-path" onclick="copy_path(this)" 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="srclink" href="../../src/generic_array/sequence.rs.html#152-188">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>−</span>]</button></span></div><div class="item-decl"><pre class="rust trait"><code>pub unsafe trait Shorten<T>: <a class="trait" href="https://doc.rust-lang.org/1.67.0/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a> + <a class="trait" href="trait.GenericSequence.html" title="trait generic_array::sequence::GenericSequence">GenericSequence</a><T> {
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type <a href="#associatedtype.Shorter" class="associatedtype">Shorter</a>: <a class="trait" href="trait.Lengthen.html" title="trait generic_array::sequence::Lengthen">Lengthen</a><T, Longer = Self>;
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fn <a href="#tymethod.pop_back" class="fn">pop_back</a>(self) -> (Self::<a class="associatedtype" href="trait.Shorten.html#associatedtype.Shorter" title="type generic_array::sequence::Shorten::Shorter">Shorter</a>, T);
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<span class="item-spacer"></span> fn <a href="#tymethod.pop_front" class="fn">pop_front</a>(self) -> (T, Self::<a class="associatedtype" href="trait.Shorten.html#associatedtype.Shorter" title="type generic_array::sequence::Shorten::Shorter">Shorter</a>);
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}</code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Defines a <code>GenericSequence</code> which can be shortened by removing the first or last element from it.</p>
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<p>Additionally, any shortened sequence can be lengthened by
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appending or prepending an element to it.</p>
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</div></details><h2 id="required-associated-types" class="small-section-header">Required Associated Types<a href="#required-associated-types" class="anchor">§</a></h2><div class="methods"><details class="rustdoc-toggle method-toggle" open><summary><section id="associatedtype.Shorter" class="method has-srclink"><a class="srclink rightside" href="../../src/generic_array/sequence.rs.html#154">source</a><h4 class="code-header">type <a href="#associatedtype.Shorter" class="associatedtype">Shorter</a>: <a class="trait" href="trait.Lengthen.html" title="trait generic_array::sequence::Lengthen">Lengthen</a><T, Longer = Self></h4></section></summary><div class="docblock"><p><code>GenericSequence</code> that has one less element than <code>Self</code></p>
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</div></details></div><h2 id="required-methods" class="small-section-header">Required Methods<a href="#required-methods" class="anchor">§</a></h2><div class="methods"><details class="rustdoc-toggle method-toggle" open><summary><section id="tymethod.pop_back" class="method has-srclink"><a class="srclink rightside" href="../../src/generic_array/sequence.rs.html#171">source</a><h4 class="code-header">fn <a href="#tymethod.pop_back" class="fn">pop_back</a>(self) -> (Self::<a class="associatedtype" href="trait.Shorten.html#associatedtype.Shorter" title="type generic_array::sequence::Shorten::Shorter">Shorter</a>, T)</h4></section></summary><div class="docblock"><p>Returns a new array without the last element, and the last element.</p>
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<p>Example:</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">let </span>a = <span class="macro">arr!</span>[i32; <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>];
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<span class="kw">let </span>(init, last) = a.pop_back();
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<span class="macro">assert_eq!</span>(init, <span class="macro">arr!</span>[i32; <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>]);
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<span class="macro">assert_eq!</span>(last, <span class="number">4</span>);</code></pre></div>
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</div></details><details class="rustdoc-toggle method-toggle" open><summary><section id="tymethod.pop_front" class="method has-srclink"><a class="srclink rightside" href="../../src/generic_array/sequence.rs.html#187">source</a><h4 class="code-header">fn <a href="#tymethod.pop_front" class="fn">pop_front</a>(self) -> (T, Self::<a class="associatedtype" href="trait.Shorten.html#associatedtype.Shorter" title="type generic_array::sequence::Shorten::Shorter">Shorter</a>)</h4></section></summary><div class="docblock"><p>Returns a new array without the first element, and the first element.
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Example:</p>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">let </span>a = <span class="macro">arr!</span>[i32; <span class="number">1</span>, <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>];
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<span class="kw">let </span>(head, tail) = a.pop_front();
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<span class="macro">assert_eq!</span>(head, <span class="number">1</span>);
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<span class="macro">assert_eq!</span>(tail, <span class="macro">arr!</span>[i32; <span class="number">2</span>, <span class="number">3</span>, <span class="number">4</span>]);</code></pre></div>
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</div></details></div><h2 id="implementors" class="small-section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"><details class="rustdoc-toggle implementors-toggle"><summary><section id="impl-Shorten%3CT%3E-for-GenericArray%3CT%2C%20N%3E" class="impl has-srclink"><a class="srclink rightside" href="../../src/generic_array/sequence.rs.html#232-263">source</a><a href="#impl-Shorten%3CT%3E-for-GenericArray%3CT%2C%20N%3E" class="anchor">§</a><h3 class="code-header">impl<T, N> <a class="trait" href="trait.Shorten.html" title="trait generic_array::sequence::Shorten">Shorten</a><T> for <a class="struct" href="../struct.GenericArray.html" title="struct generic_array::GenericArray">GenericArray</a><T, N><span class="where fmt-newline">where<br> N: <a class="trait" href="https://doc.rust-lang.org/1.67.0/core/ops/arith/trait.Sub.html" title="trait core::ops::arith::Sub">Sub</a><<a class="struct" href="../../typenum/bit/struct.B1.html" title="struct typenum::bit::B1">B1</a>> + <a class="trait" href="../trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a><T>,<br> <a class="type" href="../../typenum/operator_aliases/type.Sub1.html" title="type typenum::operator_aliases::Sub1">Sub1</a><N>: <a class="trait" href="../trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a><T> + <a class="trait" href="https://doc.rust-lang.org/1.67.0/core/ops/arith/trait.Add.html" title="trait core::ops::arith::Add">Add</a><<a class="struct" href="../../typenum/bit/struct.B1.html" title="struct typenum::bit::B1">B1</a>, Output = N>,<br> <a class="type" href="../../typenum/operator_aliases/type.Add1.html" title="type typenum::operator_aliases::Add1">Add1</a><<a class="type" href="../../typenum/operator_aliases/type.Sub1.html" title="type typenum::operator_aliases::Sub1">Sub1</a><N>>: <a class="trait" href="../trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a><T>,</span></h3></section></summary><div class="impl-items"><section id="associatedtype.Shorter-1" class="associatedtype trait-impl has-srclink"><a href="#associatedtype.Shorter-1" class="anchor">§</a><h4 class="code-header">type <a href="#associatedtype.Shorter" class="associatedtype">Shorter</a> = <a class="struct" href="../struct.GenericArray.html" title="struct generic_array::GenericArray">GenericArray</a><T, <N as <a class="trait" href="https://doc.rust-lang.org/1.67.0/core/ops/arith/trait.Sub.html" title="trait core::ops::arith::Sub">Sub</a><<a class="struct" href="../../typenum/bit/struct.B1.html" title="struct typenum::bit::B1">B1</a>>>::<a class="associatedtype" href="https://doc.rust-lang.org/1.67.0/core/ops/arith/trait.Sub.html#associatedtype.Output" title="type core::ops::arith::Sub::Output">Output</a>></h4></section></div></details></div><script src="../../implementors/generic_array/sequence/trait.Shorten.js" async></script></section></div></main><div id="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="generic_array" data-themes="" data-resource-suffix="" data-rustdoc-version="1.67.0 (fc594f156 2023-01-24)" data-search-js="search-444266647c4dba98.js" data-settings-js="settings-bebeae96e00e4617.js" data-settings-css="settings-af96d9e2fc13e081.css" ></div></body></html> |