Function core_foundation_sys::string::CFStringCreateWithBytes

pub unsafe extern fn CFStringCreateWithBytes(alloc: CFAllocatorRef,
                                             bytes: *const u8,
                                             numBytes: CFIndex,
                                             encoding: CFStringEncoding,
                                             isExternalRepresentation: Boolean,
                                             contentsDeallocator: CFAllocatorRef)
                                             -> CFStringRef