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Nilstrieb 2022-07-23 18:54:50 +00:00
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posts/box-is-a-unique-type/index.html
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<span class=post-author>:: Nilstrieb</span>
<span class=post-reading-time>:: 12 min read (2370 words)</span></div><span class=post-tags>#<a href=/tags/rust/>rust</a>&nbsp;
#<a href=/tags/unsafe-code/>unsafe code</a>&nbsp;</span><div class=post-content><div><p>We have all used <code>Box&lt;T></code> before in our Rust code. It&rsquo;s a glorious type, with great ergonomics
and flexibitility. We can use it to put our values on the heap, but it can do even more
and flexibility. We can use it to put our values on the heap, but it can do even more
than that!</p><div class=highlight><pre tabindex=0 style=color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4><code class=language-rust data-lang=rust><span style=display:flex><span><span style=color:#66d9ef>struct</span> <span style=color:#a6e22e>Fields</span> {
</span></span><span style=display:flex><span> a: String,
</span></span><span style=display:flex><span> b: String,

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<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Posts on nilstriebs blog</title><link>/posts/</link><description>Recent content in Posts on nilstriebs blog</description><generator>Hugo -- gohugo.io</generator><language>en-us</language><lastBuildDate>Sat, 23 Jul 2022 00:00:00 +0000</lastBuildDate><atom:link href="/posts/index.xml" rel="self" type="application/rss+xml"/><item><title>Box Is a Unique Type</title><link>/posts/box-is-a-unique-type/</link><pubDate>Sat, 23 Jul 2022 00:00:00 +0000</pubDate><guid>/posts/box-is-a-unique-type/</guid><description>We have all used Box&amp;lt;T&amp;gt; before in our Rust code. It&amp;rsquo;s a glorious type, with great ergonomics and flexibitility. We can use it to put our values on the heap, but it can do even more than that!
<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Posts on nilstriebs blog</title><link>/posts/</link><description>Recent content in Posts on nilstriebs blog</description><generator>Hugo -- gohugo.io</generator><language>en-us</language><lastBuildDate>Sat, 23 Jul 2022 00:00:00 +0000</lastBuildDate><atom:link href="/posts/index.xml" rel="self" type="application/rss+xml"/><item><title>Box Is a Unique Type</title><link>/posts/box-is-a-unique-type/</link><pubDate>Sat, 23 Jul 2022 00:00:00 +0000</pubDate><guid>/posts/box-is-a-unique-type/</guid><description>We have all used Box&amp;lt;T&amp;gt; before in our Rust code. It&amp;rsquo;s a glorious type, with great ergonomics and flexibility. We can use it to put our values on the heap, but it can do even more than that!
struct Fields { a: String, b: String, } let fields = Box::new(Fields { a: &amp;#34;a&amp;#34;.to_string(), b: &amp;#34;b&amp;#34;.to_string() }); let a = fields.a; let b = fields.b; This kind of partial deref move is just one of the spectacular magic tricks box has up its sleeve, and they exist for good reason: They are very useful.</description><content>&lt;p>We have all used &lt;code>Box&amp;lt;T&amp;gt;&lt;/code> before in our Rust code. It&amp;rsquo;s a glorious type, with great ergonomics
and flexibitility. We can use it to put our values on the heap, but it can do even more
and flexibility. We can use it to put our values on the heap, but it can do even more
than that!&lt;/p>
&lt;div class="highlight">&lt;pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;">&lt;code class="language-rust" data-lang="rust">&lt;span style="display:flex;">&lt;span>&lt;span style="color:#66d9ef">struct&lt;/span> &lt;span style="color:#a6e22e">Fields&lt;/span> {
&lt;/span>&lt;/span>&lt;span style="display:flex;">&lt;span> a: String,