---
title: "Data.Deallocator.custom(_:)"
framework: foundation
role: symbol
role_heading: Case
path: "foundation/data/deallocator/custom(_:)"
---

# Data.Deallocator.custom(_:)

A custom deallocator.

## Declaration

```swift
case custom((UnsafeMutableRawPointer, Int) -> Void)
```

## See Also

### Enumeration Cases

- [Data.Deallocator.free](foundation/data/deallocator/free.md)
- [Data.Deallocator.none](foundation/data/deallocator/none.md)
- [Data.Deallocator.unmap](foundation/data/deallocator/unmap.md)
- [Data.Deallocator.virtualMemory](foundation/data/deallocator/virtualmemory.md)