---
title: simd_packed_half16
framework: simd
role: symbol
role_heading: Type Alias
path: simd/simd_packed_half16
---

# simd_packed_half16

## Declaration

```swift
typealias simd_packed_half16 = SIMD16<Float16>
```

## Discussion

Discussion A vector of sixteen 16-bit floating-point numbers with relaxed alignment. This type is not available in Metal. The alignment of this type is only that of the underlying scalar element type, so you can use it to load or store from an array of that type.