---
title: Double.SIMD2Storage
framework: swift
role: symbol
role_heading: Structure
path: swift/double/simd2storage
---

# Double.SIMD2Storage

Storage for a vector of two floating-point values.

## Declaration

```swift
@frozen struct SIMD2Storage
```

## Topics

### Initializers

- [init()](swift/double/simd2storage/init().md)

### Instance Properties

- [scalarCount](swift/double/simd2storage/scalarcount.md)

### Subscripts

- [subscript(_:)](swift/double/simd2storage/subscript(_:).md)

### Type Aliases

- [Double.SIMD2Storage.Scalar](swift/double/simd2storage/scalar.md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [SIMDStorage](swift/simdstorage.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### SIMD-Supporting Types

- [Double.SIMDMaskScalar](swift/double/simdmaskscalar.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)