---
title: isUniqueReference()
framework: swift
role: symbol
role_heading: Instance Method
path: swift/managedbufferpointer/isuniquereference()
---

# isUniqueReference()

Returns true if self holds the only strong reference to its buffer; otherwise, returns false.

## Declaration

```swift
mutating func isUniqueReference() -> Bool
```

## Discussion

Discussion See isKnownUniquelyReferenced for details.

## See Also

### Inspecting a Buffer

- [capacity](swift/managedbufferpointer/capacity.md)
- [header](swift/managedbufferpointer/header.md)
- [buffer](swift/managedbufferpointer/buffer.md)