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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 functional programming methods for generic sequences"><title>FunctionalSequence in generic_array::functional - 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/SourceSerif4-Bold-a2c9cd1067f8b328.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-fa3bb1812debf86c.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="generic_array" data-themes="" data-resource-suffix="" data-rustdoc-version="1.74.1 (a28077b28 2023-12-04)" data-channel="1.74.1" data-search-js="search-8be46b629f5f14a8.js" data-settings-js="settings-74424d7eec62a23e.js" ><script src="../../static.files/storage-fec3eaa3851e447d.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-c5bd66d33317d69f.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-5d8b3c7633ad77ba.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 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">&#9776;</button><a class="logo-container" href="../../generic_array/index.html"><img class="rust-logo" src="../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a></nav><nav class="sidebar"><a class="logo-container" href="../../generic_array/index.html"><img class="rust-logo" src="../../static.files/rust-logo-151179464ae7ed46.svg" alt="logo"></a><h2 class="location"><a href="#">FunctionalSequence</a></h2><div class="sidebar-elems"><section><h3><a href="#provided-methods">Provided Methods</a></h3><ul class="block"><li><a href="#method.fold">fold</a></li><li><a href="#method.map">map</a></li><li><a href="#method.zip">zip</a></li></ul><h3><a href="#foreign-impls">Implementations on Foreign Types</a></h3><ul class="block"><li><a href="#impl-FunctionalSequence%3CT%3E-for-%26'a+S">&amp;&#x27;a S</a></li><li><a href="#impl-FunctionalSequence%3CT%3E-for-%26'a+mut+S">&amp;&#x27;a mut S</a></li></ul><h3><a href="#implementors">Implementors</a></h3></section><h2><a href="index.html">In generic_array::functional</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-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Trait <a href="../index.html">generic_array</a>::<wbr><a href="index.html">functional</a>::<wbr><a class="trait" href="#">FunctionalSequence</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/generic_array/functional.rs.html#43-83">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>&#x2212;</span>]</button></span></div><pre class="rust item-decl"><code>pub unsafe trait FunctionalSequence&lt;T&gt;: <a class="trait" href="../sequence/trait.GenericSequence.html" title="trait generic_array::sequence::GenericSequence">GenericSequence</a>&lt;T&gt; {
// Provided methods
fn <a href="#method.map" class="fn">map</a>&lt;U, F&gt;(self, f: F) -&gt; <a class="type" href="type.MappedSequence.html" title="type generic_array::functional::MappedSequence">MappedSequence</a>&lt;Self, T, U&gt;
<span class="where">where Self: <a class="trait" href="trait.MappedGenericSequence.html" title="trait generic_array::functional::MappedGenericSequence">MappedGenericSequence</a>&lt;T, U&gt;,
Self::<a class="associatedtype" href="../sequence/trait.GenericSequence.html#associatedtype.Length" title="type generic_array::sequence::GenericSequence::Length">Length</a>: <a class="trait" href="../trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a>&lt;U&gt;,
F: <a class="trait" href="https://doc.rust-lang.org/1.74.1/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.74.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>) -&gt; U</span> { ... }
<span class="item-spacer"></span> fn <a href="#method.zip" class="fn">zip</a>&lt;B, Rhs, U, F&gt;(self, rhs: Rhs, f: F) -&gt; <a class="type" href="type.MappedSequence.html" title="type generic_array::functional::MappedSequence">MappedSequence</a>&lt;Self, T, U&gt;
<span class="where">where Self: <a class="trait" href="trait.MappedGenericSequence.html" title="trait generic_array::functional::MappedGenericSequence">MappedGenericSequence</a>&lt;T, U&gt;,
Rhs: <a class="trait" href="trait.MappedGenericSequence.html" title="trait generic_array::functional::MappedGenericSequence">MappedGenericSequence</a>&lt;B, U, Mapped = <a class="type" href="type.MappedSequence.html" title="type generic_array::functional::MappedSequence">MappedSequence</a>&lt;Self, T, U&gt;&gt; + <a class="trait" href="../sequence/trait.GenericSequence.html" title="trait generic_array::sequence::GenericSequence">GenericSequence</a>&lt;B, Length = Self::<a class="associatedtype" href="../sequence/trait.GenericSequence.html#associatedtype.Length" title="type generic_array::sequence::GenericSequence::Length">Length</a>&gt;,
Self::<a class="associatedtype" href="../sequence/trait.GenericSequence.html#associatedtype.Length" title="type generic_array::sequence::GenericSequence::Length">Length</a>: <a class="trait" href="../trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a>&lt;B&gt; + <a class="trait" href="../trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a>&lt;U&gt;,
F: <a class="trait" href="https://doc.rust-lang.org/1.74.1/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.74.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>, Rhs::<a class="associatedtype" href="https://doc.rust-lang.org/1.74.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>) -&gt; U</span> { ... }
<span class="item-spacer"></span> fn <a href="#method.fold" class="fn">fold</a>&lt;U, F&gt;(self, init: U, f: F) -&gt; U
<span class="where">where F: <a class="trait" href="https://doc.rust-lang.org/1.74.1/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(U, Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.74.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>) -&gt; U</span> { ... }
}</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Defines functional programming methods for generic sequences</p>
</div></details><h2 id="provided-methods" class="small-section-header">Provided Methods<a href="#provided-methods" class="anchor">§</a></h2><div class="methods"><details class="toggle method-toggle" open><summary><section id="method.map" class="method"><a class="src rightside" href="../../src/generic_array/functional.rs.html#48-55">source</a><h4 class="code-header">fn <a href="#method.map" class="fn">map</a>&lt;U, F&gt;(self, f: F) -&gt; <a class="type" href="type.MappedSequence.html" title="type generic_array::functional::MappedSequence">MappedSequence</a>&lt;Self, T, U&gt;<span class="where fmt-newline">where
Self: <a class="trait" href="trait.MappedGenericSequence.html" title="trait generic_array::functional::MappedGenericSequence">MappedGenericSequence</a>&lt;T, U&gt;,
Self::<a class="associatedtype" href="../sequence/trait.GenericSequence.html#associatedtype.Length" title="type generic_array::sequence::GenericSequence::Length">Length</a>: <a class="trait" href="../trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a>&lt;U&gt;,
F: <a class="trait" href="https://doc.rust-lang.org/1.74.1/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.74.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>) -&gt; U,</span></h4></section></summary><div class="docblock"><p>Maps a <code>GenericSequence</code> to another <code>GenericSequence</code>.</p>
<p>If the mapping function panics, any already initialized elements in the new sequence
will be dropped, AND any unused elements in the source sequence will also be dropped.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.zip" class="method"><a class="src rightside" href="../../src/generic_array/functional.rs.html#63-72">source</a><h4 class="code-header">fn <a href="#method.zip" class="fn">zip</a>&lt;B, Rhs, U, F&gt;(self, rhs: Rhs, f: F) -&gt; <a class="type" href="type.MappedSequence.html" title="type generic_array::functional::MappedSequence">MappedSequence</a>&lt;Self, T, U&gt;<span class="where fmt-newline">where
Self: <a class="trait" href="trait.MappedGenericSequence.html" title="trait generic_array::functional::MappedGenericSequence">MappedGenericSequence</a>&lt;T, U&gt;,
Rhs: <a class="trait" href="trait.MappedGenericSequence.html" title="trait generic_array::functional::MappedGenericSequence">MappedGenericSequence</a>&lt;B, U, Mapped = <a class="type" href="type.MappedSequence.html" title="type generic_array::functional::MappedSequence">MappedSequence</a>&lt;Self, T, U&gt;&gt; + <a class="trait" href="../sequence/trait.GenericSequence.html" title="trait generic_array::sequence::GenericSequence">GenericSequence</a>&lt;B, Length = Self::<a class="associatedtype" href="../sequence/trait.GenericSequence.html#associatedtype.Length" title="type generic_array::sequence::GenericSequence::Length">Length</a>&gt;,
Self::<a class="associatedtype" href="../sequence/trait.GenericSequence.html#associatedtype.Length" title="type generic_array::sequence::GenericSequence::Length">Length</a>: <a class="trait" href="../trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a>&lt;B&gt; + <a class="trait" href="../trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a>&lt;U&gt;,
F: <a class="trait" href="https://doc.rust-lang.org/1.74.1/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.74.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>, Rhs::<a class="associatedtype" href="https://doc.rust-lang.org/1.74.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>) -&gt; U,</span></h4></section></summary><div class="docblock"><p>Combines two <code>GenericSequence</code> instances and iterates through both of them,
initializing a new <code>GenericSequence</code> with the result of the zipped mapping function.</p>
<p>If the mapping function panics, any already initialized elements in the new sequence
will be dropped, AND any unused elements in the source sequences will also be dropped.</p>
</div></details><details class="toggle method-toggle" open><summary><section id="method.fold" class="method"><a class="src rightside" href="../../src/generic_array/functional.rs.html#77-82">source</a><h4 class="code-header">fn <a href="#method.fold" class="fn">fold</a>&lt;U, F&gt;(self, init: U, f: F) -&gt; U<span class="where fmt-newline">where
F: <a class="trait" href="https://doc.rust-lang.org/1.74.1/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(U, Self::<a class="associatedtype" href="https://doc.rust-lang.org/1.74.1/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>) -&gt; U,</span></h4></section></summary><div class="docblock"><p>Folds (or reduces) a sequence of data into a single value.</p>
<p>If the fold function panics, any unused elements will be dropped.</p>
</div></details></div><h2 id="foreign-impls" class="small-section-header">Implementations on Foreign Types<a href="#foreign-impls" class="anchor">§</a></h2><section id="impl-FunctionalSequence%3CT%3E-for-%26'a+S" class="impl"><a class="src rightside" href="../../src/generic_array/functional.rs.html#85-89">source</a><a href="#impl-FunctionalSequence%3CT%3E-for-%26'a+S" class="anchor">§</a><h3 class="code-header">impl&lt;'a, T, S: <a class="trait" href="../sequence/trait.GenericSequence.html" title="trait generic_array::sequence::GenericSequence">GenericSequence</a>&lt;T&gt;&gt; <a class="trait" href="trait.FunctionalSequence.html" title="trait generic_array::functional::FunctionalSequence">FunctionalSequence</a>&lt;T&gt; for <a class="primitive" href="https://doc.rust-lang.org/1.74.1/core/primitive.reference.html">&amp;'a S</a><span class="where fmt-newline">where
<a class="primitive" href="https://doc.rust-lang.org/1.74.1/core/primitive.reference.html">&amp;'a S</a>: <a class="trait" href="../sequence/trait.GenericSequence.html" title="trait generic_array::sequence::GenericSequence">GenericSequence</a>&lt;T&gt;,</span></h3></section><section id="impl-FunctionalSequence%3CT%3E-for-%26'a+mut+S" class="impl"><a class="src rightside" href="../../src/generic_array/functional.rs.html#91-95">source</a><a href="#impl-FunctionalSequence%3CT%3E-for-%26'a+mut+S" class="anchor">§</a><h3 class="code-header">impl&lt;'a, T, S: <a class="trait" href="../sequence/trait.GenericSequence.html" title="trait generic_array::sequence::GenericSequence">GenericSequence</a>&lt;T&gt;&gt; <a class="trait" href="trait.FunctionalSequence.html" title="trait generic_array::functional::FunctionalSequence">FunctionalSequence</a>&lt;T&gt; for <a class="primitive" href="https://doc.rust-lang.org/1.74.1/core/primitive.reference.html">&amp;'a mut S</a><span class="where fmt-newline">where
<a class="primitive" href="https://doc.rust-lang.org/1.74.1/core/primitive.reference.html">&amp;'a mut S</a>: <a class="trait" href="../sequence/trait.GenericSequence.html" title="trait generic_array::sequence::GenericSequence">GenericSequence</a>&lt;T&gt;,</span></h3></section><h2 id="implementors" class="small-section-header">Implementors<a href="#implementors" class="anchor">§</a></h2><div id="implementors-list"><section id="impl-FunctionalSequence%3CT%3E-for-GenericArray%3CT,+N%3E" class="impl"><a class="src rightside" href="../../src/generic_array/lib.rs.html#469-525">source</a><a href="#impl-FunctionalSequence%3CT%3E-for-GenericArray%3CT,+N%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, N&gt; <a class="trait" href="trait.FunctionalSequence.html" title="trait generic_array::functional::FunctionalSequence">FunctionalSequence</a>&lt;T&gt; for <a class="struct" href="../struct.GenericArray.html" title="struct generic_array::GenericArray">GenericArray</a>&lt;T, N&gt;<span class="where fmt-newline">where
N: <a class="trait" href="../trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a>&lt;T&gt;,
Self: <a class="trait" href="../sequence/trait.GenericSequence.html" title="trait generic_array::sequence::GenericSequence">GenericSequence</a>&lt;T, Item = T, Length = N&gt;,</span></h3></section></div><script src="../../implementors/generic_array/functional/trait.FunctionalSequence.js" async></script></section></div></main></body></html>
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