copy(_:to:count:)

Declaration

static func copy(_ source: DSPDoubleSplitComplex, to destination: inout DSPDoubleSplitComplex, count: Int)

Parameters

• source:

  The source complex vector.

• destination:

  The destination complex vector.

• count:

  The number of complex elements in the source and destination vectors.

Discussion

The following code copies the complex elements in the source to the destination:

    let realSrc = UnsafeMutableBufferPointer<Double>.allocate(capacity: 4)
    _ = realSrc.initialize(from: [0, 2, 4, 6])
    
    let imagSrc = UnsafeMutableBufferPointer<Double>.allocate(capacity: 4)
    _ = imagSrc.initialize(from: [1, 3, 5, 7])
    
    let source = DSPDoubleSplitComplex(realp: realSrc.baseAddress!,
                                       imagp: imagSrc.baseAddress!)
    
    let realDst = UnsafeMutableBufferPointer<Double>.allocate(capacity: 4)
    let imagDst = UnsafeMutableBufferPointer<Double>.allocate(capacity: 4)
    
    var destination = DSPDoubleSplitComplex(realp: realDst.baseAddress!,
                                            imagp: imagDst.baseAddress!)
    
    vDSP.copy(source, to: &destination, count: 4)
    
    print(Array(realDst)) // Prints "[0.0, 2.0, 4.0, 6.0]".
    print(Array(imagDst)) // Prints "[1.0, 3.0, 5.0, 7.0]".

See Also

Vector copying functions

• copy(_:to:count:)