Function

vDSP_destroy_fftsetupD(_:)

Frees an existing double-precision FFT data structure.

Declaration

func vDSP_destroy_fftsetupD(_ __setup: FFTSetupD?)

Discussion

This is the same as vDSP_destroy_fftsetup, except for the type of the setup parameter.

See Also

1D Fast Fourier Transforms (Support Functions)

func vDSP_create_fftsetup(vDSP_Length, FFTRadix) -> FFTSetup?

Builds a data structure that contains precalculated data for use by single-precision FFT functions.

func vDSP_create_fftsetupD(vDSP_Length, FFTRadix) -> FFTSetupD?

Builds a data structure that contains precalculated data for use by double-precision FFT functions.

func vDSP_destroy_fftsetup(FFTSetup?)

Frees an existing single-precision FFT data structure.