---
title: "init(version:retain:release:copyDescription:equal:hash:)"
framework: corefoundation
role: symbol
role_heading: Initializer
path: "corefoundation/cfsetcallbacks/init(version:retain:release:copydescription:equal:hash:)"
---

# init(version:retain:release:copyDescription:equal:hash:)

## Declaration

```swift
init(version: CFIndex, retain: CFSetRetainCallBack!, release: CFSetReleaseCallBack!, copyDescription: CFSetCopyDescriptionCallBack!, equal: CFSetEqualCallBack!, hash: CFSetHashCallBack!)
```