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# CFURLCreateWithString(_:_:_:)

Creates a `CFURL` object using a given `CFString` object.

```
func CFURLCreateWithString(_ allocator: CFAllocator!, _ URLString: CFString!, _ baseURL: CFURL!) -> CFURL!
```

## Parameters

`allocator`

The allocator to use to allocate memory for the new `CFURL` object. Pass `NULL` or [`kCFAllocatorDefault`](/documentation/CoreFoundation/kCFAllocatorDefault) to use the current default allocator.

`URLString`

The `CFString` object containing the URL string.

`baseURL`

The URL to which `URLString` is relative. Pass `NULL` if `URLString` contains an absolute URL or if you want to create a relative URL. If `URLString` contains an absolute URL, `baseURL` is ignored.

## Return Value

A new `CFURL` object. Ownership follows the create rule. See [The Create Rule](https://developer.apple.com/library/archive/documentation/CoreFoundation/Conceptual/CFMemoryMgmt/Concepts/Ownership.html#//apple_ref/doc/uid/20001148-103029).

## Discussion

Any escape sequences in `URLString` will be interpreted using UTF-8.

---

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