---
title: "reduce_max(_:)"
framework: simd
role: symbol
role_heading: Function
path: "simd/reduce_max(_:)-5wvu6"
---

# reduce_max(_:)

Returns the maximum value in a vector.

## Declaration

```swift
func reduce_max(_ x: SIMD3<Int32>) -> Int32
```

## See Also

### Reduce Functions

- [simd_reduce_min(_:)](simd/simd_reduce_min(_:)-45ygx.md)
- [reduce_min(_:)](simd/reduce_min(_:)-3l43s.md)
- [simd_reduce_max(_:)](simd/simd_reduce_max(_:)-4gy97.md)
- [simd_reduce_add(_:)](simd/simd_reduce_add(_:)-2utmv.md)
- [reduce_add(_:)](simd/reduce_add(_:)-9pjza.md)