Inter-operability of Swift arrays with C?

Question

How can one pass or copy the data in a C array, such as

float foo[1024];

, between C and Swift functions that use fixed size arrays, such as d

Answer 1

As of Beta 5, one can just use pass &array The following example passes 2 float arrays to a vDSP C function:

let logLen = 10
let len = Int(pow(2.0, Double(logLen)))
let setup : COpaquePointer = vDSP_create_fftsetup(vDSP_Length(logLen), FFTRadix(kFFTRadix2))

var myRealArray = [Float](count: len, repeatedValue: 0.0)
var myImagArray = [Float](count: len, repeatedValue: 0.0)
var cplxData = DSPSplitComplex(realp: &myRealArray, imagp: &myImagArray)

vDSP_fft_zip(setup, &cplxData, 1, vDSP_Length(logLen),FFTDirection(kFFTDirection_Forward))