---
title: ".<(_:_:)"
framework: swift
role: symbol
role_heading: Operator
path: "swift/simd32/'._(_:_:)-532p4"
---

# .<(_:_:)

A vector mask with the result of a pointwise less-than comparison.

## Declaration

```swift
static func .< (a: SIMD32<Scalar>, b: SIMD32<Scalar>) -> SIMDMask<SIMD32<Scalar>.MaskStorage>
```