---
title: "simd_make_uchar32_undef(_:)"
framework: simd
role: symbol
role_heading: Function
path: "simd/simd_make_uchar32_undef(_:)-6klno"
---

# simd_make_uchar32_undef(_:)

Returns a new vector with the first element set to a scalar value, and other elements undefined.

## Declaration

```swift
func simd_make_uchar32_undef(_ other: UInt8) -> simd_uchar32
```

## See Also

### Functions to Create Thirty Two-Element Vectors From Scalar Values

- [simd_make_uchar32(_:)](simd/simd_make_uchar32(_:)-8z2lu.md)