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# CFURLCreateCopyDeletingPathExtension(_:_:)

Creates a copy of a given URL with its last path extension removed.

```
func CFURLCreateCopyDeletingPathExtension(_ allocator: CFAllocator!, _ url: 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.

`url`

The `CFURL` object whose path extension you want to delete.

## Return Value

A copy of `url` with its last path extension removed. 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

---

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