---
title: FFTSetupD
framework: accelerate
role: symbol
role_heading: Type Alias
path: accelerate/fftsetupd
---

# FFTSetupD

An opaque type that contains setup information for a double-precision FFT transform.

## Declaration

```swift
typealias FFTSetupD = OpaquePointer
```

## Discussion

Discussion Call the vDSP_create_fftsetupD function to create a setup structure, and calll vDSP_destroy_fftsetupD to deallocate a setup structure.

## See Also

### FFT Setup

- [FFTSetup](accelerate/fftsetup.md)
- [FFTRadix](accelerate/fftradix.md)