---
title: "vsignbitf(_:)"
framework: accelerate
role: symbol
role_heading: Function
path: "accelerate/vsignbitf(_:)"
---

# vsignbitf(_:)

For each vector element, returns a non-zero value if and only if the sign of arg is negative. This includes NaNs, infinities and zeros.

## Declaration

```swift
func vsignbitf(_: vFloat) -> vUInt32
```

## See Also

### Inquiry Functions (from vfp.h)

- [vclassifyf(_:)](accelerate/vclassifyf(_:).md)