---
layout: "default"
title: "Double"
description: "Swift documentation for struct 'Double'."
keywords: "Double,struct,swift,documentation,abs,advancedBy,distanceTo,stride,stride,NaN,infinity,quietNaN,description,floatingPointClass,hashValue,isFinite,isInfinite,isNaN,isNormal,isSignMinus,isSignaling,isSubnormal,isZero,value"
root: "/v2.1"
---

<div class="intro-declaration"><code class="language-swift">struct Double</code></div>


<table class="standard">
<tr>
<th id="inheritance">Inheritance</th>
<td>
<cod