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# vDSP_vclr

Populates a single-precision vector with zeros.

```
extern 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`](/documentation/Accelerate/vDSP_vclr) and [`vDSP_vclrD`](/documentation/Accelerate/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:

```swift
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)
```

---

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