CFBitVectorCreate(_:_:_:)
Creates an immutable bit vector from a block of memory.
Declaration
func CFBitVectorCreate(_ allocator: CFAllocator!, _ bytes: UnsafePointer<UInt8>!, _ numBits: CFIndex) -> CFBitVector!Parameters
- allocator:
The allocator to use to allocate memory for the new bit vector. Pass
NULLor kCFAllocatorDefault to use the current default allocator. - bytes:
A pointer to the bit values to store in the new bit vector. The values are copied into the bit vector’s own memory. The bit indices are numbered left-to-right with
0being the left-most, or most-significant, bit in the byte stream. - numBits:
The number of bits in the bit vector.
Return Value
A new bit vector. Ownership follows the The Create Rule.