---
title: kCFErrorDomainMach
framework: corefoundation
role: symbol
role_heading: Global Variable
path: corefoundation/kcferrordomainmach
---

# kCFErrorDomainMach

A constant that specified the Mach domain.

## Declaration

```swift
let kCFErrorDomainMach: CFErrorDomain!
```

## See Also

### Constants

- [kCFErrorDomainPOSIX](corefoundation/kcferrordomainposix.md)
- [kCFErrorDomainOSStatus](corefoundation/kcferrordomainosstatus.md)
- [kCFErrorDomainCocoa](corefoundation/kcferrordomaincocoa.md)