---
title: "init(mutating:)"
framework: swift
role: symbol
role_heading: Initializer
path: "swift/unsafemutablerawbufferpointer/init(mutating:)"
---

# init(mutating:)

Creates a new mutable buffer over the same memory as the given buffer.

## Declaration

```swift
init(mutating bytes: UnsafeRawBufferPointer)
```

## Parameters

- `bytes`: The buffer to convert.