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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="API documentation for the Rust `FunctionalSequence` trait in crate `generic_array`."><meta name="keywords" content="rust, rustlang, rust-lang, FunctionalSequence"><title>generic_array::functional::FunctionalSequence - 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="../../light.css" id="themeStyle"><script src="../../storage.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="shortcut icon" href="../../favicon.ico"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></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">☰</div><a href='../../generic_array/index.html'><div class='logo-container'><img src='../../rust-logo.png' alt='logo'></div></a><p class='location'>Trait FunctionalSequence</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#provided-methods">Provided Methods</a><div class="sidebar-links"><a href="#method.fold">fold</a><a href="#method.map">map</a><a href="#method.zip">zip</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='../index.html'>generic_array</a>::<wbr><a href='index.html'>functional</a></p><script>window.sidebarCurrent = {name: 'FunctionalSequence', 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"><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><a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><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/generic_array/functional.rs.html#42-82' title='goto source code'>[src]</a></span><span class='in-band'>Trait <a href='../index.html'>generic_array</a>::<wbr><a href='index.html'>functional</a>::<wbr><a class="trait" href=''>FunctionalSequence</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class='rust trait'>pub unsafe trait FunctionalSequence<T>: <a class="trait" href="../../generic_array/sequence/trait.GenericSequence.html" title="trait generic_array::sequence::GenericSequence">GenericSequence</a><T> {
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fn <a href='#method.map' class='fnname'>map</a><U, F>(self, f: F) -> <a class="type" href="../../generic_array/functional/type.MappedSequence.html" title="type generic_array::functional::MappedSequence">MappedSequence</a><Self, T, U><br> <span class="where">where<br> Self: <a class="trait" href="../../generic_array/functional/trait.MappedGenericSequence.html" title="trait generic_array::functional::MappedGenericSequence">MappedGenericSequence</a><T, U>,<br> Self::<a class="type" href="../../generic_array/sequence/trait.GenericSequence.html#associatedtype.Length" title="type generic_array::sequence::GenericSequence::Length">Length</a>: <a class="trait" href="../../generic_array/trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a><U>,<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>) -> U</span>,
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{ ... }
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<div class='item-spacer'></div> fn <a href='#method.zip' class='fnname'>zip</a><B, Rhs, U, F>(self, rhs: Rhs, f: F) -> <a class="type" href="../../generic_array/functional/type.MappedSequence.html" title="type generic_array::functional::MappedSequence">MappedSequence</a><Self, T, U><br> <span class="where">where<br> Self: <a class="trait" href="../../generic_array/functional/trait.MappedGenericSequence.html" title="trait generic_array::functional::MappedGenericSequence">MappedGenericSequence</a><T, U>,<br> Rhs: <a class="trait" href="../../generic_array/functional/trait.MappedGenericSequence.html" title="trait generic_array::functional::MappedGenericSequence">MappedGenericSequence</a><B, U, Mapped = <a class="type" href="../../generic_array/functional/type.MappedSequence.html" title="type generic_array::functional::MappedSequence">MappedSequence</a><Self, T, U>>,<br> Self::<a class="type" href="../../generic_array/sequence/trait.GenericSequence.html#associatedtype.Length" title="type generic_array::sequence::GenericSequence::Length">Length</a>: <a class="trait" href="../../generic_array/trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a><B> + <a class="trait" href="../../generic_array/trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a><U>,<br> Rhs: <a class="trait" href="../../generic_array/sequence/trait.GenericSequence.html" title="trait generic_array::sequence::GenericSequence">GenericSequence</a><B, Length = Self::<a class="type" href="../../generic_array/sequence/trait.GenericSequence.html#associatedtype.Length" title="type generic_array::sequence::GenericSequence::Length">Length</a>>,<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>, Rhs::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>) -> U</span>,
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{ ... }
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<div class='item-spacer'></div> fn <a href='#method.fold' class='fnname'>fold</a><U, F>(self, init: U, f: F) -> U<br> <span class="where">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(U, Self::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>) -> U</span>,
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{ ... }
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}</pre></div><div class='docblock'><p>Defines functional programming methods for generic sequences</p>
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</div>
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<h2 id='provided-methods' class='small-section-header'>Provided methods<a href='#provided-methods' class='anchor'></a></h2><div class='methods'><h3 id='method.map' class='method'><code id='map.v'>fn <a href='#method.map' class='fnname'>map</a><U, F>(self, f: F) -> <a class="type" href="../../generic_array/functional/type.MappedSequence.html" title="type generic_array::functional::MappedSequence">MappedSequence</a><Self, T, U> <span class="where fmt-newline">where<br> Self: <a class="trait" href="../../generic_array/functional/trait.MappedGenericSequence.html" title="trait generic_array::functional::MappedGenericSequence">MappedGenericSequence</a><T, U>,<br> Self::<a class="type" href="../../generic_array/sequence/trait.GenericSequence.html#associatedtype.Length" title="type generic_array::sequence::GenericSequence::Length">Length</a>: <a class="trait" href="../../generic_array/trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a><U>,<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>) -> U, </span></code></h3><div class='docblock'><p>Maps a <code>GenericSequence</code> to another <code>GenericSequence</code>.</p>
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<p>If the mapping function panics, any already initialized elements in the new sequence
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will be dropped, AND any unused elements in the source sequence will also be dropped.</p>
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</div><h3 id='method.zip' class='method'><code id='zip.v'>fn <a href='#method.zip' class='fnname'>zip</a><B, Rhs, U, F>(self, rhs: Rhs, f: F) -> <a class="type" href="../../generic_array/functional/type.MappedSequence.html" title="type generic_array::functional::MappedSequence">MappedSequence</a><Self, T, U> <span class="where fmt-newline">where<br> Self: <a class="trait" href="../../generic_array/functional/trait.MappedGenericSequence.html" title="trait generic_array::functional::MappedGenericSequence">MappedGenericSequence</a><T, U>,<br> Rhs: <a class="trait" href="../../generic_array/functional/trait.MappedGenericSequence.html" title="trait generic_array::functional::MappedGenericSequence">MappedGenericSequence</a><B, U, Mapped = <a class="type" href="../../generic_array/functional/type.MappedSequence.html" title="type generic_array::functional::MappedSequence">MappedSequence</a><Self, T, U>>,<br> Self::<a class="type" href="../../generic_array/sequence/trait.GenericSequence.html#associatedtype.Length" title="type generic_array::sequence::GenericSequence::Length">Length</a>: <a class="trait" href="../../generic_array/trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a><B> + <a class="trait" href="../../generic_array/trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a><U>,<br> Rhs: <a class="trait" href="../../generic_array/sequence/trait.GenericSequence.html" title="trait generic_array::sequence::GenericSequence">GenericSequence</a><B, Length = Self::<a class="type" href="../../generic_array/sequence/trait.GenericSequence.html#associatedtype.Length" title="type generic_array::sequence::GenericSequence::Length">Length</a>>,<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(Self::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>, Rhs::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>) -> U, </span></code></h3><div class='docblock'><p>Combines two <code>GenericSequence</code> instances and iterates through both of them,
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initializing a new <code>GenericSequence</code> with the result of the zipped mapping function.</p>
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<p>If the mapping function panics, any already initialized elements in the new sequence
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will be dropped, AND any unused elements in the source sequences will also be dropped.</p>
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</div><h3 id='method.fold' class='method'><code id='fold.v'>fn <a href='#method.fold' class='fnname'>fold</a><U, F>(self, init: U, f: F) -> U <span class="where fmt-newline">where<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(U, Self::<a class="type" href="https://doc.rust-lang.org/nightly/core/iter/traits/collect/trait.IntoIterator.html#associatedtype.Item" title="type core::iter::traits::collect::IntoIterator::Item">Item</a>) -> U, </span></code></h3><div class='docblock'><p>Folds (or reduces) a sequence of data into a single value.</p>
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<p>If the fold function panics, any unused elements will be dropped.</p>
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</div></div><span class='loading-content'>Loading content...</span>
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<h2 id='implementors' class='small-section-header'>Implementors<a href='#implementors' class='anchor'></a></h2><div class='item-list' id='implementors-list'><h3 id='impl-FunctionalSequence%3CT%3E' class='impl'><code class='in-band'>impl<'a, T, S: <a class="trait" href="../../generic_array/sequence/trait.GenericSequence.html" title="trait generic_array::sequence::GenericSequence">GenericSequence</a><T>> FunctionalSequence<T> for &'a S <span class="where fmt-newline">where<br> &'a S: <a class="trait" href="../../generic_array/sequence/trait.GenericSequence.html" title="trait generic_array::sequence::GenericSequence">GenericSequence</a><T>, </span></code><a href='#impl-FunctionalSequence%3CT%3E' class='anchor'></a><a class='srclink' href='../../src/generic_array/functional.rs.html#84-88' title='goto source code'>[src]</a></h3><div class='impl-items'></div><h3 id='impl-FunctionalSequence%3CT%3E-1' class='impl'><code class='in-band'>impl<'a, T, S: <a class="trait" href="../../generic_array/sequence/trait.GenericSequence.html" title="trait generic_array::sequence::GenericSequence">GenericSequence</a><T>> FunctionalSequence<T> for &'a mut S <span class="where fmt-newline">where<br> &'a mut S: <a class="trait" href="../../generic_array/sequence/trait.GenericSequence.html" title="trait generic_array::sequence::GenericSequence">GenericSequence</a><T>, </span></code><a href='#impl-FunctionalSequence%3CT%3E-1' class='anchor'></a><a class='srclink' href='../../src/generic_array/functional.rs.html#90-94' title='goto source code'>[src]</a></h3><div class='impl-items'></div><h3 id='impl-FunctionalSequence%3CT%3E-2' class='impl'><code class='in-band'>impl<T, N> FunctionalSequence<T> for <a class="struct" href="../../generic_array/struct.GenericArray.html" title="struct generic_array::GenericArray">GenericArray</a><T, N> <span class="where fmt-newline">where<br> N: <a class="trait" href="../../generic_array/trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a><T>,<br> Self: <a class="trait" href="../../generic_array/sequence/trait.GenericSequence.html" title="trait generic_array::sequence::GenericSequence">GenericSequence</a><T, Item = T, Length = N>, </span></code><a href='#impl-FunctionalSequence%3CT%3E-2' class='anchor'></a><a class='srclink' href='../../src/generic_array/lib.rs.html#425-481' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.map-1' class="method hidden"><code id='map.v-1'>fn <a href='#method.map-1' class='fnname'>map</a><U, F>(self, f: F) -> <a class="type" href="../../generic_array/functional/type.MappedSequence.html" title="type generic_array::functional::MappedSequence">MappedSequence</a><Self, T, U> <span class="where fmt-newline">where<br> Self::<a class="type" href="../../generic_array/sequence/trait.GenericSequence.html#associatedtype.Length" title="type generic_array::sequence::GenericSequence::Length">Length</a>: <a class="trait" href="../../generic_array/trait.ArrayLength.html" title="trait generic_array::ArrayLength">ArrayLength</a><U>,<br> Self: <a class="trait" href="../../generic_array/functional/trait.MappedGenericSequence.html" title="trait generic_array::functional::MappedGenericSequence">MappedGenericSequence</a><T, U>,<br> F: <a class="trait" href="https://doc.rust-lang.org/nightly/core/ops/function/trait.FnMut.html" title="trait core::ops::function::FnMut">FnMut</a>(T) -> U, </span></code><a class='srclink' href='../../src/generic_array/lib.rs.html#430-449' title='goto source code'>[src]</a></h4><h4 id='method.zip-1' class="method hidden"><code id='zip.v-1'>fn <a href='#method.zip-1' class='fnname'>zip</a><B, Rhs, U, F>(self, rhs: Rhs, f: F) -> <a class="type" href="../../generic_array/functional/type.MappedSequenc
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