---
title: NSNonRetainedObjectHashCallBacks
framework: foundation
role: symbol
role_heading: Global Variable
path: foundation/nsnonretainedobjecthashcallbacks
---

# NSNonRetainedObjectHashCallBacks

For sets of objects, but without retaining/releasing.

## Declaration

```swift
let NSNonRetainedObjectHashCallBacks: NSHashTableCallBacks
```

## See Also

### Constants

- [NSIntegerHashCallBacks](foundation/nsintegerhashcallbacks.md)
- [NSNonOwnedPointerHashCallBacks](foundation/nsnonownedpointerhashcallbacks.md)
- [NSObjectHashCallBacks](foundation/nsobjecthashcallbacks.md)
- [NSOwnedObjectIdentityHashCallBacks](foundation/nsownedobjectidentityhashcallbacks.md)
- [NSOwnedPointerHashCallBacks](foundation/nsownedpointerhashcallbacks.md)
- [NSPointerToStructHashCallBacks](foundation/nspointertostructhashcallbacks.md)