Function

vDSP_destroy_fftsetup(_:)

Frees an existing single-precision FFT data structure.

Declaration

func vDSP_destroy_fftsetup(_ __setup: FFTSetup?)

Parameters

__setup

Identifies the setup data, and must point to a data structure previously created by vDSP_create_fftsetup.

Discussion

vDSP_destroy_fftsetup frees existing setup data. Any memory allocated for the setup data is released.

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_fftsetupD(FFTSetupD?)

Frees an existing double-precision FFT data structure.