---
title: simd_char4
framework: simd
role: symbol
role_heading: Type Alias
path: simd/simd_char4
---

# simd_char4

A vector of four 8-bit signed integer elements.

## Declaration

```swift
typealias simd_char4 = SIMD4<CChar>
```

## Topics

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

- [simd_make_char4(_:)](simd/simd_make_char4(_:)-mdlt.md)
- [simd_make_char4(_:)](simd/simd_make_char4(_:)-k1u0.md)
- [simd_make_char4(_:)](simd/simd_make_char4(_:)-gjz7.md)
- [simd_make_char4(_:)](simd/simd_make_char4(_:)-1mbtb.md)
- [simd_make_char4(_:)](simd/simd_make_char4(_:)-4y0kh.md)
- [simd_make_char4(_:)](simd/simd_make_char4(_:)-3tnz9.md)
- [simd_make_char4(_:)](simd/simd_make_char4(_:)-69u9q.md)
- [simd_make_char4(_:_:)](simd/simd_make_char4(_:_:)-3vf4l.md)
- [simd_make_char4_undef(_:)](simd/simd_make_char4_undef(_:)-6zlek.md)
- [simd_make_char4_undef(_:)](simd/simd_make_char4_undef(_:)-73111.md)

### Functions to Create Four-Element Vectors From Scalar Values

- [simd_make_char4(_:)](simd/simd_make_char4(_:)-8kfe3.md)
- [simd_make_char4(_:_:_:_:)](simd/simd_make_char4(_:_:_:_:).md)
- [simd_make_char4_undef(_:)](simd/simd_make_char4_undef(_:)-99pql.md)

### Functions to Create Four-Element Vectors From Combinations of Vectors and Scalar Value

- [simd_make_char4(_:_:_:)](simd/simd_make_char4(_:_:_:)-82ftd.md)
- [simd_make_char4(_:_:)](simd/simd_make_char4(_:_:)-226qq.md)
- [simd_make_char4(_:_:_:)](simd/simd_make_char4(_:_:_:)-9mb46.md)
- [simd_make_char4(_:_:_:)](simd/simd_make_char4(_:_:_:)-94kun.md)
- [simd_make_char4(_:_:)](simd/simd_make_char4(_:_:)-76rpp.md)

### Common Functions

- [simd_abs(_:)](simd/simd_abs(_:)-81ics.md)
- [simd_clamp(_:_:_:)](simd/simd_clamp(_:_:_:)-1lm34.md)
- [simd_equal(_:_:)](simd/simd_equal(_:_:)-4x3vb.md)

### Reduce Functions

- [simd_reduce_min(_:)](simd/simd_reduce_min(_:)-4ue96.md)
- [simd_reduce_max(_:)](simd/simd_reduce_max(_:)-4ql9m.md)
- [simd_reduce_add(_:)](simd/simd_reduce_add(_:)-2yeuw.md)

### Extrema Functions

- [simd_min(_:_:)](simd/simd_min(_:_:)-2mbto.md)
- [simd_max(_:_:)](simd/simd_max(_:_:)-7qdak.md)

### Logic and Bitwise Functions

- [simd_any(_:)](simd/simd_any(_:)-6cs8j.md)
- [simd_all(_:)](simd/simd_all(_:)-1jxv1.md)
- [simd_bitselect(_:_:_:)](simd/simd_bitselect(_:_:_:)-4mvfw.md)

### Alternative Type Alias

- [vector_char4](simd/vector_char4.md)

## See Also

### Vector Data Types

- [simd_char1](simd/simd_char1.md)
- [simd_char2](simd/simd_char2.md)
- [simd_char3](simd/simd_char3.md)
- [simd_char8](simd/simd_char8.md)
- [simd_char16](simd/simd_char16.md)
- [simd_char32](simd/simd_char32.md)
- [simd_char64](simd/simd_char64.md)