---
layout: "default"
title: "_NSSetCoreType"
description: "Swift documentation for '_NSSetCoreType': A shadow for the &quot;core operations&quot; of NSSet."
keywords: "_NSSetCoreType,protocol,swift,documentation,copyWithZone,countByEnumeratingWithState,member,objectEnumerator,count"
root: "/v2.0"
---

<div class="intro-declaration"><code class="language-swift">protocol _NSSetCoreType</code></div>

<div class="discussion comment">
    <p>A shadow for the &quot;core operations&quot; of NSSet.</p>

<p>Covers 