---
title: "simd_make_uint8_undef(_:)"
framework: simd
role: symbol
role_heading: Function
path: "simd/simd_make_uint8_undef(_:)-6a8k"
---

# simd_make_uint8_undef(_:)

Returns a new vector from the specified four-element vector, and other elements undefined.

## Declaration

```swift
func simd_make_uint8_undef(_ other: simd_uint4) -> simd_uint8
```

## See Also

### Functions to Create Eight-Element Vectors From Other Vectors

- [simd_make_uint8(_:)](simd/simd_make_uint8(_:)-2vaoh.md)
- [simd_make_uint8(_:)](simd/simd_make_uint8(_:)-2rtxs.md)
- [simd_make_uint8(_:)](simd/simd_make_uint8(_:)-2ovzr.md)
- [simd_make_uint8(_:)](simd/simd_make_uint8(_:)-3sztf.md)
- [simd_make_uint8(_:)](simd/simd_make_uint8(_:)-64gkj.md)
- [simd_make_uint8(_:_:)](simd/simd_make_uint8(_:_:).md)
- [simd_make_uint8_undef(_:)](simd/simd_make_uint8_undef(_:)-ck1m.md)
- [simd_make_uint8_undef(_:)](simd/simd_make_uint8_undef(_:)-hojv.md)