---
title: SIMD4.MaskStorage
framework: swift
role: symbol
role_heading: Type Alias
path: swift/simd4/maskstorage
---

# SIMD4.MaskStorage

The mask type resulting from pointwise comparisons of this vector type.

## Declaration

```swift
typealias MaskStorage = SIMD4<Scalar.SIMDMaskScalar>
```