---
title: sawNotANumber
framework: audiotoolbox
role: symbol
role_heading: Instance Property
path: audiotoolbox/audiounitmeterclipping/sawnotanumber
---

# sawNotANumber

TRUE if there was a floating point “not a number” value on this channel since the last time the property was retrieved.

## Declaration

```swift
var sawNotANumber: DarwinBoolean
```