vDSP_vclr

Declaration

void vDSP_vclr(float *__C, vDSP_Stride __IC, vDSP_Length __N);

Parameters

• __C:

  Single-precision real output vector.

• __IC:

  Address stride for C.

• __N:

  The number of elements to process.

Discussion

The vDSP_vclr and vDSP_vclrD functions populate a vector with zeros.

The following code shows how to clear the array c, setting the value of each element to zero:

let n = vDSP_Length(10)
let stride = vDSP_Stride(1)

var c = [Float](repeating: .nan,
                count: Int(n))

vDSP_vclr(&c,
          stride,
          n)

// Prints "[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]"
print(c)