---
title: "init(rawValue:)"
framework: system
role: symbol
role_heading: Initializer
path: "system/errno/init(rawvalue:)"
---

# init(rawValue:)

Creates a strongly typed error number from a raw C error number.

## Declaration

```swift
init(rawValue: CInt)
```

## See Also

### Interacting with C APIs

- [rawValue](system/errno/rawvalue.md)