---
title: "build_UnaryMinus(_:)"
framework: foundation
role: symbol
role_heading: Type Method
path: "foundation/predicateexpressions/build_unaryminus(_:)"
---

# build_UnaryMinus(_:)

## Declaration

```swift
static func build_UnaryMinus<T>(_ inner: T) -> PredicateExpressions.UnaryMinus<T> where T : PredicateExpression, T.Output : SignedNumeric
```