---
title: "+(_:_:)"
framework: coremedia
role: symbol
role_heading: Operator
path: "coremedia/cmreadonlydatablockbuffer/+(_:_:)-58lg4"
---

# +(_:_:)

Creates a new block buffer by concatenating two block buffers.

## Declaration

```swift
static func + (a: CMReadOnlyDataBlockBuffer, b: CMReadOnlyDataBlockBuffer) -> CMReadOnlyDataBlockBuffer
```