---
title: "CFBitVectorSetAllBits(_:_:)"
framework: corefoundation
role: symbol
role_heading: Function
path: "corefoundation/cfbitvectorsetallbits(_:_:)"
---

# CFBitVectorSetAllBits(_:_:)

Sets all bits in a bit vector to a particular value.

## Declaration

```swift
func CFBitVectorSetAllBits(_ bv: CFMutableBitVector!, _ value: CFBit)
```

## Parameters

- `bv`: The bit vector to modify.
- `value`: The bit value to which to set all bits in bv.

## See Also

### Modifying a Bit Vector

- [CFBitVectorFlipBitAtIndex(_:_:)](corefoundation/cfbitvectorflipbitatindex(_:_:).md)
- [CFBitVectorFlipBits(_:_:)](corefoundation/cfbitvectorflipbits(_:_:).md)
- [CFBitVectorSetBitAtIndex(_:_:_:)](corefoundation/cfbitvectorsetbitatindex(_:_:_:).md)
- [CFBitVectorSetBits(_:_:_:)](corefoundation/cfbitvectorsetbits(_:_:_:).md)
- [CFBitVectorSetCount(_:_:)](corefoundation/cfbitvectorsetcount(_:_:).md)