---
title: Double.SIMDMaskScalar
framework: swift
role: symbol
role_heading: Type Alias
path: swift/double/simdmaskscalar
---

# Double.SIMDMaskScalar

## Declaration

```swift
typealias SIMDMaskScalar = Int64
```

## See Also

### SIMD-Supporting Types

- [Double.SIMD2Storage](swift/double/simd2storage.md)
- [Double.SIMD4Storage](swift/double/simd4storage.md)
- [Double.SIMD8Storage](swift/double/simd8storage.md)
- [Double.SIMD16Storage](swift/double/simd16storage.md)
- [Double.SIMD32Storage](swift/double/simd32storage.md)
- [Double.SIMD64Storage](swift/double/simd64storage.md)