---
title: lastErrnoValue
framework: system
role: symbol
role_heading: Type Property
path: system/errno/lasterrnovalue
---

# lastErrnoValue

The largest valid error.

## Declaration

```swift
static var lastErrnoValue: Errno { get }
```

## Mentioned in

Adopting Swift Error Constants

## Discussion

Discussion This value is the largest valid value encountered using the C errno global variable. It isn’t a valid error. The corresponding C error is ELAST.

## See Also

### Reserved

- [multiHop](system/errno/multihop.md)
- [noLink](system/errno/nolink.md)
- [noStreamResources](system/errno/nostreamresources.md)
- [notStream](system/errno/notstream.md)
- [notUsed](system/errno/notused.md)
- [timeout](system/errno/timeout.md)