---
title: NSNonRetainedObjectMapValueCallBacks
framework: foundation
role: symbol
role_heading: Global Variable
path: foundation/nsnonretainedobjectmapvaluecallbacks
---

# NSNonRetainedObjectMapValueCallBacks

For sets of objects, but without retaining/releasing.

## Declaration

```swift
let NSNonRetainedObjectMapValueCallBacks: NSMapTableValueCallBacks
```

## See Also

### Constants

- [NSIntegerMapValueCallBacks](foundation/nsintegermapvaluecallbacks.md)
- [NSIntMapValueCallBacks](foundation/nsintmapvaluecallbacks.md)
- [NSNonOwnedPointerMapValueCallBacks](foundation/nsnonownedpointermapvaluecallbacks.md)
- [NSOwnedPointerMapValueCallBacks](foundation/nsownedpointermapvaluecallbacks.md)
- [NSObjectMapValueCallBacks](foundation/nsobjectmapvaluecallbacks.md)