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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 `Reallocator` trait in crate `nalgebra`."><meta name="keywords" content="rust, rustlang, rust-lang, Reallocator"><title>nalgebra::base::allocator::Reallocator - 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="http://nalgebra.org/img/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='../../../nalgebra/index.html'><div class='logo-container'><img src='../../../rust-logo.png' alt='logo'></div></a><p class='location'>Trait Reallocator</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.reallocate_copy">reallocate_copy</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='../../index.html'>nalgebra</a>::<wbr><a href='../index.html'>base</a>::<wbr><a href='index.html'>allocator</a></p><script>window.sidebarCurrent = {name: 'Reallocator', 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/nalgebra/base/allocator.rs.html#36-51' title='goto source code'>[src]</a></span><span class='in-band'>Trait <a href='../../index.html'>nalgebra</a>::<wbr><a href='../index.html'>base</a>::<wbr><a href='index.html'>allocator</a>::<wbr><a class="trait" href=''>Reallocator</a></span></h1><div class="docblock type-decl hidden-by-usual-hider"><pre class='rust trait'>pub trait Reallocator<N: <a class="trait" href="../../../nalgebra/base/trait.Scalar.html" title="trait nalgebra::base::Scalar">Scalar</a>, RFrom: <a class="trait" href="../../../nalgebra/base/dimension/trait.Dim.html" title="trait nalgebra::base::dimension::Dim">Dim</a>, CFrom: <a class="trait" href="../../../nalgebra/base/dimension/trait.Dim.html" title="trait nalgebra::base::dimension::Dim">Dim</a>, RTo: <a class="trait" href="../../../nalgebra/base/dimension/trait.Dim.html" title="trait nalgebra::base::dimension::Dim">Dim</a>, CTo: <a class="trait" href="../../../nalgebra/base/dimension/trait.Dim.html" title="trait nalgebra::base::dimension::Dim">Dim</a>>: <a class="trait" href="../../../nalgebra/base/allocator/trait.Allocator.html" title="trait nalgebra::bas
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unsafe fn <a href='#tymethod.reallocate_copy' class='fnname'>reallocate_copy</a>(<br> nrows: RTo, <br> ncols: CTo, <br> buf: Self::<a class="type" href="../../../nalgebra/base/allocator/trait.Allocator.html#associatedtype.Buffer" title="type nalgebra::base::allocator::Allocator::Buffer">Buffer</a><br> ) -> Self::<a class="type" href="../../../nalgebra/base/allocator/trait.Allocator.html#associatedtype.Buffer" title="type nalgebra::base::allocator::Allocator::Buffer">Buffer</a>;
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}</pre></div><div class='docblock'><p>A matrix reallocator. Changes the size of the memory buffer that initially contains (RFrom ×
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CFrom) elements to a smaller or larger size (RTo, CTo).</p>
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</div>
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<h2 id='required-methods' class='small-section-header'>Required methods<a href='#required-methods' class='anchor'></a></h2><div class='methods'><h3 id='tymethod.reallocate_copy' class='method'><code id='reallocate_copy.v'>unsafe fn <a href='#tymethod.reallocate_copy' class='fnname'>reallocate_copy</a>(<br> nrows: RTo, <br> ncols: CTo, <br> buf: Self::<a class="type" href="../../../nalgebra/base/allocator/trait.Allocator.html#associatedtype.Buffer" title="type nalgebra::base::allocator::Allocator::Buffer">Buffer</a><br>) -> Self::<a class="type" href="../../../nalgebra/base/allocator/trait.Allocator.html#associatedtype.Buffer" title="type nalgebra::base::allocator::Allocator::Buffer">Buffer</a></code></h3><div class='docblock'><p>Reallocates a buffer of shape <code>(RTo, CTo)</code>, possibly reusing a previously allocated buffer
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<code>buf</code>. Data stored by <code>buf</code> are linearly copied to the output:</p>
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<ul>
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<li>The copy is performed as if both were just arrays (without a matrix structure).</li>
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<li>If <code>buf</code> is larger than the output size, then extra elements of <code>buf</code> are truncated.</li>
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<li>If <code>buf</code> is smaller than the output size, then extra elements of the output are left
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uninitialized.</li>
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</ul>
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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-Reallocator%3CN%2C%20Dynamic%2C%20CFrom%2C%20Dynamic%2C%20CTo%3E' class='impl'><code class='in-band'>impl<N: <a class="trait" href="../../../nalgebra/base/trait.Scalar.html" title="trait nalgebra::base::Scalar">Scalar</a>, CFrom: <a class="trait" href="../../../nalgebra/base/dimension/trait.Dim.html" title="trait nalgebra::base::dimension::Dim">Dim</a>, CTo: <a class="trait" href="../../../nalgebra/base/dimension/trait.Dim.html" title="trait nalgebra::base::dimension::Dim">Dim</a>> Reallocator<N, <a class="struct" href="../../../nalgebra/base/dimension/struct.Dynamic.html" title="struct nalgebra::base::dimension::Dynamic">Dynamic</a>, CFrom, <a class="struct" href="../../../nalgebra/base/dimension/struct.Dynamic.html" title="struct nalgebra::base::dimension::Dynamic">Dynamic</a>, CTo> for <a class="struct" href="../../../nalgebra/base/default_allocator/struct.DefaultAllocator.html" title="struct nalgebra::base::default_allocator::DefaultAllocator">DefaultAllocator</a></code><a href='#impl-Reallocator%3CN%2C%20Dynamic%2C%20CFrom%2C%20Dynamic%2C%20CTo%3E' class='anchor'></a><a class='srclink' href='../../../src/nalgebra/base/default_allocator.rs.html#234-247' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.reallocate_copy' class="method hidden"><code id='reallocate_copy.v-1'>unsafe fn <a href='#method.reallocate_copy' class='fnname'>reallocate_copy</a>(<br> rto: <a class="struct" href="../../../nalgebra/base/dimension/struct.Dynamic.html" title="struct nalgebra::base::dimension::Dynamic">Dynamic</a>, <br> cto: CTo, <br> buf: <a class="struct" href="../../../nalgebra/base/struct.VecStorage.html" title="struct nalgebra::base::VecStorage">VecStorage</a><N, <a class="struct" href="../../../nalgebra/base/dimension/struct.Dynamic.html" title="struct nalgebra::base::dimension::Dynamic">Dynamic</a>, CFrom><br>) -> <a class="struct" href="../../../nalgebra/base/struct.VecStorage.html" title="struct nalgebra::base::VecStorage">VecStorage</a><N, <a class="struct" href="../../../nalgebra/base/dimension/struct.Dynamic.html" title="struct nalgebra::base::dimension::Dynamic">Dynamic</a>, CTo></code><a class='srclink' href='../../../src/nalgebra/base/default_allocator.rs.html#238-246' title='goto source code'>[src]</a></h4></div><h3 id='impl-Reallocator%3CN%2C%20Dynamic%2C%20CFrom%2C%20RTo%2C%20Dynamic%3E' class='impl'><code class='in-band'>impl<N: <a class="trait" href="../../../nalgebra/base/trait.Scalar.html" title="trait nalgebra::base::Scalar">Scalar</a>, CFrom: <a class="trait" href="../../../nalgebra/base/dimension/trait.Dim.html" title="trait nalgebra::base::dimension::Dim">Dim</a>, RTo: <a class="trait" href="../../../nalgebra/base/dimension/trait.DimName.html" title="trait nalgebra::base::dimension::DimName">DimName</a>> Reallocator<N, <a class="struct" href="../../../nalgebra/base/dimension/struct.Dynamic.html" title="struct nalgebra::base::dimension::Dynamic">Dynamic</a>, CFrom, RTo, <a class="struct" href="../../../nalgebra/base/dimension/struct.Dynamic.html" title="struct nalgebra::base::dimension::Dynamic">Dynamic</a>> for <a class="struct" href="../../../nalgebra/base/default_allocator/struct.DefaultAllocator.html" title="struct nalgebra::base::default_allocator::DefaultAllocator">DefaultAllocator</a></code><a href='#impl-Reallocator%3CN%2C%20Dynamic%2C%20CFrom%2C%20RTo%2C%20Dynamic%3E' class='anchor'></a><a class='srclink' href='../../../src/nalgebra/base/default_allocator.rs.html#250-263' title='goto source code'>[src]</a></h3><div class='impl-items'><h4 id='method.reallocate_copy-1' class="method hidden"><code id='reallocate_copy.v-2'>unsafe fn <a href='#method.reallocate_copy-1' class='fnname'>reallocate_copy</a>(<br> rto: RTo, <br> &n
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src="../../../implementors/nalgebra/base/allocator/trait.Reallocator.js">
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