---
title: "CFCharacterSetAddCharactersInRange(_:_:)"
framework: corefoundation
role: symbol
role_heading: Function
path: "corefoundation/cfcharactersetaddcharactersinrange(_:_:)"
---

# CFCharacterSetAddCharactersInRange(_:_:)

Adds a given range to a character set.

## Declaration

```swift
func CFCharacterSetAddCharactersInRange(_ theSet: CFMutableCharacterSet!, _ theRange: CFRange)
```

## Parameters

- `theSet`: The character set to modify.
- `theRange`: The range to add to the character set. The range is specified in 32-bits in UTF-32 format, and must lie within the valid Unicode character range (from 0x00000 to 0x10FFFF).

## See Also

### Adding Characters

- [CFCharacterSetAddCharactersInString(_:_:)](corefoundation/cfcharactersetaddcharactersinstring(_:_:).md)