fft - Swift vDSP_create_fftsetup deprecated in iOS 8.4? -

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i using fft routine wrote application in swift couple of months ago.

the line initializing fft setup, i.e. calculating weights of fft,

let fft_weights: fftsetup = vdsp_create_fftsetup(17, fftradix(kfftradix2))

does not seem work anymore ios 8.4, whereas former app works fine on ios 8.3. when try type function, doesn't appear anymore. deprecated? if yes, since it's relevant function, substitute?

thank you!

i ran similar issues several fft functions online. turns out need prepend functions vdsp_. see have on function call "vdsp_create_fftsetup" not same problem. want point out other people similar problems.


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