I was wondering what's the difference between this code:
import Accelerate
var a: Double = 3
var c: Double = 0
withUnsafePointer(to: &a) { bufferA in
withUnsafeMutablePointer(to: &c) { bufferC in
vDSP_minvD(bufferA, vDSP_Stride(1), bufferC, vDSP_Length(1))
}
}
and this other one:
import Accelerate
var a: Double = 3
var c: Double = 0
vDSP_minvD(&a, vDSP_Stride(1), &c, vDSP_Length(1))
Is the former safer and more efficient, since the latter uses Swift's implicit bridging to pass a double pointer?
Thank you.