---
title: UInt128.AtomicRepresentation
framework: swift
role: symbol
role_heading: Type Alias
path: swift/uint128/atomicrepresentation
---

# UInt128.AtomicRepresentation

The storage representation type that Self encodes to and decodes from which is a suitable type when used in atomic operations.

## Declaration

```swift
typealias AtomicRepresentation
```