Casting between different UnsafePointer<T> in swift
struct UnsafePointer<T> has a constructor
/// Convert from a UnsafePointer of a different type.////// This is a fundamentally unsafe conversion.init<U>(_ from: UnsafePointer<U>)which you can use here
doThingsOnRawData(UnsafePointer<UInt8>(data.bytes))You can even omit the generic type because it is inferred from the context:
doThingsOnRawData(UnsafePointer(data.bytes))Update for Swift 3: As of Xcode 8 beta 6, you cannot convertdirectly between different unsafe pointers anymore.
For data: NSData, data.bytes is a UnsafeRawPointer which canbe converted to UnsafePointer<UInt8> with assumingMemoryBound:
doThingsOnRawData(data.bytes.assumingMemoryBound(to: UInt8.self))For data: Data it is even simpler:
data.withUnsafeBytes { doThingsOnRawData($0) }