GHC.Word.Compat

word-compat-0.0.6: Compatibility shim for the Int/Word internal change in GHC 9.2

Safe Haskell | None
Language | Haskell2010

GHC.Word.Compat

Contents

- Shifts
- Byte swapping
- Bit reversal
- Equality operators

Synopsis

- data Word8
- data Word16
- data Word32
- data Word64
- data Word = W# Word#
- pattern W8# :: Word# -> Word8
- pattern W16# :: Word# -> Word16
- pattern W32# :: Word# -> Word32
- pattern W64# :: Word# -> Word64
- uncheckedShiftL64# :: Word64# -> Int# -> Word64#
- uncheckedShiftRL64# :: Word64# -> Int# -> Word64#
- byteSwap16 :: Word16 -> Word16
- byteSwap32 :: Word32 -> Word32
- byteSwap64 :: Word64 -> Word64
- bitReverse8 :: Word8 -> Word8
- bitReverse16 :: Word16 -> Word16
- bitReverse32 :: Word32 -> Word32
- bitReverse64 :: Word64 -> Word64
- eqWord :: Word -> Word -> Bool
- neWord :: Word -> Word -> Bool
- gtWord :: Word -> Word -> Bool
- geWord :: Word -> Word -> Bool
- ltWord :: Word -> Word -> Bool
- leWord :: Word -> Word -> Bool
- eqWord8 :: Word8 -> Word8 -> Bool
- neWord8 :: Word8 -> Word8 -> Bool
- gtWord8 :: Word8 -> Word8 -> Bool
- geWord8 :: Word8 -> Word8 -> Bool
- ltWord8 :: Word8 -> Word8 -> Bool
- leWord8 :: Word8 -> Word8 -> Bool
- eqWord16 :: Word16 -> Word16 -> Bool
- neWord16 :: Word16 -> Word16 -> Bool
- gtWord16 :: Word16 -> Word16 -> Bool
- geWord16 :: Word16 -> Word16 -> Bool
- ltWord16 :: Word16 -> Word16 -> Bool
- leWord16 :: Word16 -> Word16 -> Bool
- eqWord32 :: Word32 -> Word32 -> Bool
- neWord32 :: Word32 -> Word32 -> Bool
- gtWord32 :: Word32 -> Word32 -> Bool
- geWord32 :: Word32 -> Word32 -> Bool
- ltWord32 :: Word32 -> Word32 -> Bool
- leWord32 :: Word32 -> Word32 -> Bool
- eqWord64 :: Word64 -> Word64 -> Bool
- neWord64 :: Word64 -> Word64 -> Bool
- gtWord64 :: Word64 -> Word64 -> Bool
- geWord64 :: Word64 -> Word64 -> Bool
- ltWord64 :: Word64 -> Word64 -> Bool
- leWord64 :: Word64 -> Word64 -> Bool

# Documentation

data Word8 #

8-bit unsigned integer type

#### Instances

Instances details

PrintfArg Word8 | Since: base-2.1
Instance details Defined in Text.Printf Methods formatArg :: Word8 -> FieldFormatter # parseFormat :: Word8 -> ModifierParser #
Bits Word8 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods (.&.) :: Word8 -> Word8 -> Word8 # (.|.) :: Word8 -> Word8 -> Word8 # xor :: Word8 -> Word8 -> Word8 # complement :: Word8 -> Word8 # shift :: Word8 -> Int -> Word8 # rotate :: Word8 -> Int -> Word8 # zeroBits :: Word8 # bit :: Int -> Word8 # setBit :: Word8 -> Int -> Word8 # clearBit :: Word8 -> Int -> Word8 # complementBit :: Word8 -> Int -> Word8 # testBit :: Word8 -> Int -> Bool # bitSizeMaybe :: Word8 -> Maybe Int # bitSize :: Word8 -> Int # isSigned :: Word8 -> Bool # shiftL :: Word8 -> Int -> Word8 # unsafeShiftL :: Word8 -> Int -> Word8 # shiftR :: Word8 -> Int -> Word8 # unsafeShiftR :: Word8 -> Int -> Word8 # rotateL :: Word8 -> Int -> Word8 # rotateR :: Word8 -> Int -> Word8 # popCount :: Word8 -> Int #
FiniteBits Word8 | @since base-4.6.0.0
Instance details Defined in GHC.Internal.Word Methods finiteBitSize :: Word8 -> Int # countLeadingZeros :: Word8 -> Int # countTrailingZeros :: Word8 -> Int #
Bounded Word8 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods minBound :: Word8 # maxBound :: Word8 #
Enum Word8 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods succ :: Word8 -> Word8 # pred :: Word8 -> Word8 # toEnum :: Int -> Word8 # fromEnum :: Word8 -> Int # enumFrom :: Word8 -> [Word8] # enumFromThen :: Word8 -> Word8 -> [Word8] # enumFromTo :: Word8 -> Word8 -> [Word8] # enumFromThenTo :: Word8 -> Word8 -> Word8 -> [Word8] #
Ix Word8 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods range :: (Word8, Word8) -> [Word8] # index :: (Word8, Word8) -> Word8 -> Int # unsafeIndex :: (Word8, Word8) -> Word8 -> Int # inRange :: (Word8, Word8) -> Word8 -> Bool # rangeSize :: (Word8, Word8) -> Int # unsafeRangeSize :: (Word8, Word8) -> Int #
Num Word8 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods (+) :: Word8 -> Word8 -> Word8 # (-) :: Word8 -> Word8 -> Word8 # (*) :: Word8 -> Word8 -> Word8 # negate :: Word8 -> Word8 # abs :: Word8 -> Word8 # signum :: Word8 -> Word8 # fromInteger :: Integer -> Word8 #
Integral Word8 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods quot :: Word8 -> Word8 -> Word8 # rem :: Word8 -> Word8 -> Word8 # div :: Word8 -> Word8 -> Word8 # mod :: Word8 -> Word8 -> Word8 # quotRem :: Word8 -> Word8 -> (Word8, Word8) # divMod :: Word8 -> Word8 -> (Word8, Word8) # toInteger :: Word8 -> Integer #
Real Word8 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods toRational :: Word8 -> Rational #
Show Word8 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods showsPrec :: Int -> Word8 -> ShowS # show :: Word8 -> String # showList :: [Word8] -> ShowS #
Eq Word8 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods (==) :: Word8 -> Word8 -> Bool # (/=) :: Word8 -> Word8 -> Bool #
Ord Word8 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods compare :: Word8 -> Word8 -> Ordering # (<) :: Word8 -> Word8 -> Bool # (<=) :: Word8 -> Word8 -> Bool # (>) :: Word8 -> Word8 -> Bool # (>=) :: Word8 -> Word8 -> Bool # max :: Word8 -> Word8 -> Word8 # min :: Word8 -> Word8 -> Word8 #

data Word16 #

16-bit unsigned integer type

#### Instances

Instances details

PrintfArg Word16 | Since: base-2.1
Instance details Defined in Text.Printf Methods formatArg :: Word16 -> FieldFormatter # parseFormat :: Word16 -> ModifierParser #
Bits Word16 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods (.&.) :: Word16 -> Word16 -> Word16 # (.|.) :: Word16 -> Word16 -> Word16 # xor :: Word16 -> Word16 -> Word16 # complement :: Word16 -> Word16 # shift :: Word16 -> Int -> Word16 # rotate :: Word16 -> Int -> Word16 # zeroBits :: Word16 # bit :: Int -> Word16 # setBit :: Word16 -> Int -> Word16 # clearBit :: Word16 -> Int -> Word16 # complementBit :: Word16 -> Int -> Word16 # testBit :: Word16 -> Int -> Bool # bitSizeMaybe :: Word16 -> Maybe Int # bitSize :: Word16 -> Int # isSigned :: Word16 -> Bool # shiftL :: Word16 -> Int -> Word16 # unsafeShiftL :: Word16 -> Int -> Word16 # shiftR :: Word16 -> Int -> Word16 # unsafeShiftR :: Word16 -> Int -> Word16 # rotateL :: Word16 -> Int -> Word16 # rotateR :: Word16 -> Int -> Word16 # popCount :: Word16 -> Int #
FiniteBits Word16 | @since base-4.6.0.0
Instance details Defined in GHC.Internal.Word Methods finiteBitSize :: Word16 -> Int # countLeadingZeros :: Word16 -> Int # countTrailingZeros :: Word16 -> Int #
Bounded Word16 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods minBound :: Word16 # maxBound :: Word16 #
Enum Word16 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods succ :: Word16 -> Word16 # pred :: Word16 -> Word16 # toEnum :: Int -> Word16 # fromEnum :: Word16 -> Int # enumFrom :: Word16 -> [Word16] # enumFromThen :: Word16 -> Word16 -> [Word16] # enumFromTo :: Word16 -> Word16 -> [Word16] # enumFromThenTo :: Word16 -> Word16 -> Word16 -> [Word16] #
Ix Word16 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods range :: (Word16, Word16) -> [Word16] # index :: (Word16, Word16) -> Word16 -> Int # unsafeIndex :: (Word16, Word16) -> Word16 -> Int # inRange :: (Word16, Word16) -> Word16 -> Bool # rangeSize :: (Word16, Word16) -> Int # unsafeRangeSize :: (Word16, Word16) -> Int #
Num Word16 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods (+) :: Word16 -> Word16 -> Word16 # (-) :: Word16 -> Word16 -> Word16 # (*) :: Word16 -> Word16 -> Word16 # negate :: Word16 -> Word16 # abs :: Word16 -> Word16 # signum :: Word16 -> Word16 # fromInteger :: Integer -> Word16 #
Integral Word16 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods quot :: Word16 -> Word16 -> Word16 # rem :: Word16 -> Word16 -> Word16 # div :: Word16 -> Word16 -> Word16 # mod :: Word16 -> Word16 -> Word16 # quotRem :: Word16 -> Word16 -> (Word16, Word16) # divMod :: Word16 -> Word16 -> (Word16, Word16) # toInteger :: Word16 -> Integer #
Real Word16 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods toRational :: Word16 -> Rational #
Show Word16 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods showsPrec :: Int -> Word16 -> ShowS # show :: Word16 -> String # showList :: [Word16] -> ShowS #
Eq Word16 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods (==) :: Word16 -> Word16 -> Bool # (/=) :: Word16 -> Word16 -> Bool #
Ord Word16 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods compare :: Word16 -> Word16 -> Ordering # (<) :: Word16 -> Word16 -> Bool # (<=) :: Word16 -> Word16 -> Bool # (>) :: Word16 -> Word16 -> Bool # (>=) :: Word16 -> Word16 -> Bool # max :: Word16 -> Word16 -> Word16 # min :: Word16 -> Word16 -> Word16 #

data Word32 #

32-bit unsigned integer type

#### Instances

Instances details

PrintfArg Word32 | Since: base-2.1
Instance details Defined in Text.Printf Methods formatArg :: Word32 -> FieldFormatter # parseFormat :: Word32 -> ModifierParser #
Bits Word32 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods (.&.) :: Word32 -> Word32 -> Word32 # (.|.) :: Word32 -> Word32 -> Word32 # xor :: Word32 -> Word32 -> Word32 # complement :: Word32 -> Word32 # shift :: Word32 -> Int -> Word32 # rotate :: Word32 -> Int -> Word32 # zeroBits :: Word32 # bit :: Int -> Word32 # setBit :: Word32 -> Int -> Word32 # clearBit :: Word32 -> Int -> Word32 # complementBit :: Word32 -> Int -> Word32 # testBit :: Word32 -> Int -> Bool # bitSizeMaybe :: Word32 -> Maybe Int # bitSize :: Word32 -> Int # isSigned :: Word32 -> Bool # shiftL :: Word32 -> Int -> Word32 # unsafeShiftL :: Word32 -> Int -> Word32 # shiftR :: Word32 -> Int -> Word32 # unsafeShiftR :: Word32 -> Int -> Word32 # rotateL :: Word32 -> Int -> Word32 # rotateR :: Word32 -> Int -> Word32 # popCount :: Word32 -> Int #
FiniteBits Word32 | @since base-4.6.0.0
Instance details Defined in GHC.Internal.Word Methods finiteBitSize :: Word32 -> Int # countLeadingZeros :: Word32 -> Int # countTrailingZeros :: Word32 -> Int #
Bounded Word32 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods minBound :: Word32 # maxBound :: Word32 #
Enum Word32 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods succ :: Word32 -> Word32 # pred :: Word32 -> Word32 # toEnum :: Int -> Word32 # fromEnum :: Word32 -> Int # enumFrom :: Word32 -> [Word32] # enumFromThen :: Word32 -> Word32 -> [Word32] # enumFromTo :: Word32 -> Word32 -> [Word32] # enumFromThenTo :: Word32 -> Word32 -> Word32 -> [Word32] #
Ix Word32 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods range :: (Word32, Word32) -> [Word32] # index :: (Word32, Word32) -> Word32 -> Int # unsafeIndex :: (Word32, Word32) -> Word32 -> Int # inRange :: (Word32, Word32) -> Word32 -> Bool # rangeSize :: (Word32, Word32) -> Int # unsafeRangeSize :: (Word32, Word32) -> Int #
Num Word32 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods (+) :: Word32 -> Word32 -> Word32 # (-) :: Word32 -> Word32 -> Word32 # (*) :: Word32 -> Word32 -> Word32 # negate :: Word32 -> Word32 # abs :: Word32 -> Word32 # signum :: Word32 -> Word32 # fromInteger :: Integer -> Word32 #
Integral Word32 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods quot :: Word32 -> Word32 -> Word32 # rem :: Word32 -> Word32 -> Word32 # div :: Word32 -> Word32 -> Word32 # mod :: Word32 -> Word32 -> Word32 # quotRem :: Word32 -> Word32 -> (Word32, Word32) # divMod :: Word32 -> Word32 -> (Word32, Word32) # toInteger :: Word32 -> Integer #
Real Word32 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods toRational :: Word32 -> Rational #
Show Word32 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods showsPrec :: Int -> Word32 -> ShowS # show :: Word32 -> String # showList :: [Word32] -> ShowS #
Eq Word32 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods (==) :: Word32 -> Word32 -> Bool # (/=) :: Word32 -> Word32 -> Bool #
Ord Word32 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods compare :: Word32 -> Word32 -> Ordering # (<) :: Word32 -> Word32 -> Bool # (<=) :: Word32 -> Word32 -> Bool # (>) :: Word32 -> Word32 -> Bool # (>=) :: Word32 -> Word32 -> Bool # max :: Word32 -> Word32 -> Word32 # min :: Word32 -> Word32 -> Word32 #

data Word64 #

64-bit unsigned integer type

#### Instances

Instances details

PrintfArg Word64 | Since: base-2.1
Instance details Defined in Text.Printf Methods formatArg :: Word64 -> FieldFormatter # parseFormat :: Word64 -> ModifierParser #
Bits Word64 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods (.&.) :: Word64 -> Word64 -> Word64 # (.|.) :: Word64 -> Word64 -> Word64 # xor :: Word64 -> Word64 -> Word64 # complement :: Word64 -> Word64 # shift :: Word64 -> Int -> Word64 # rotate :: Word64 -> Int -> Word64 # zeroBits :: Word64 # bit :: Int -> Word64 # setBit :: Word64 -> Int -> Word64 # clearBit :: Word64 -> Int -> Word64 # complementBit :: Word64 -> Int -> Word64 # testBit :: Word64 -> Int -> Bool # bitSizeMaybe :: Word64 -> Maybe Int # bitSize :: Word64 -> Int # isSigned :: Word64 -> Bool # shiftL :: Word64 -> Int -> Word64 # unsafeShiftL :: Word64 -> Int -> Word64 # shiftR :: Word64 -> Int -> Word64 # unsafeShiftR :: Word64 -> Int -> Word64 # rotateL :: Word64 -> Int -> Word64 # rotateR :: Word64 -> Int -> Word64 # popCount :: Word64 -> Int #
FiniteBits Word64 | @since base-4.6.0.0
Instance details Defined in GHC.Internal.Word Methods finiteBitSize :: Word64 -> Int # countLeadingZeros :: Word64 -> Int # countTrailingZeros :: Word64 -> Int #
Bounded Word64 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods minBound :: Word64 # maxBound :: Word64 #
Enum Word64 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods succ :: Word64 -> Word64 # pred :: Word64 -> Word64 # toEnum :: Int -> Word64 # fromEnum :: Word64 -> Int # enumFrom :: Word64 -> [Word64] # enumFromThen :: Word64 -> Word64 -> [Word64] # enumFromTo :: Word64 -> Word64 -> [Word64] # enumFromThenTo :: Word64 -> Word64 -> Word64 -> [Word64] #
Ix Word64 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods range :: (Word64, Word64) -> [Word64] # index :: (Word64, Word64) -> Word64 -> Int # unsafeIndex :: (Word64, Word64) -> Word64 -> Int # inRange :: (Word64, Word64) -> Word64 -> Bool # rangeSize :: (Word64, Word64) -> Int # unsafeRangeSize :: (Word64, Word64) -> Int #
Num Word64 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods (+) :: Word64 -> Word64 -> Word64 # (-) :: Word64 -> Word64 -> Word64 # (*) :: Word64 -> Word64 -> Word64 # negate :: Word64 -> Word64 # abs :: Word64 -> Word64 # signum :: Word64 -> Word64 # fromInteger :: Integer -> Word64 #
Integral Word64 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods quot :: Word64 -> Word64 -> Word64 # rem :: Word64 -> Word64 -> Word64 # div :: Word64 -> Word64 -> Word64 # mod :: Word64 -> Word64 -> Word64 # quotRem :: Word64 -> Word64 -> (Word64, Word64) # divMod :: Word64 -> Word64 -> (Word64, Word64) # toInteger :: Word64 -> Integer #
Real Word64 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods toRational :: Word64 -> Rational #
Show Word64 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods showsPrec :: Int -> Word64 -> ShowS # show :: Word64 -> String # showList :: [Word64] -> ShowS #
Eq Word64 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods (==) :: Word64 -> Word64 -> Bool # (/=) :: Word64 -> Word64 -> Bool #
Ord Word64 | @since base-2.01
Instance details Defined in GHC.Internal.Word Methods compare :: Word64 -> Word64 -> Ordering # (<) :: Word64 -> Word64 -> Bool # (<=) :: Word64 -> Word64 -> Bool # (>) :: Word64 -> Word64 -> Bool # (>=) :: Word64 -> Word64 -> Bool # max :: Word64 -> Word64 -> Word64 # min :: Word64 -> Word64 -> Word64 #

data Word #

A `Word` is an unsigned integral type, with the same size as `Int`.

Constructors

W# Word# |

#### Instances

Instances details

PrintfArg Word | Since: base-2.1
Instance details Defined in Text.Printf Methods formatArg :: Word -> FieldFormatter # parseFormat :: Word -> ModifierParser #
Eq Word |
Instance details Defined in GHC.Classes Methods (==) :: Word -> Word -> Bool # (/=) :: Word -> Word -> Bool #
Ord Word |
Instance details Defined in GHC.Classes Methods compare :: Word -> Word -> Ordering # (<) :: Word -> Word -> Bool # (<=) :: Word -> Word -> Bool # (>) :: Word -> Word -> Bool # (>=) :: Word -> Word -> Bool # max :: Word -> Word -> Word # min :: Word -> Word -> Word #

pattern W8# :: Word# -> Word8 #

pattern W16# :: Word# -> Word16 #

pattern W32# :: Word# -> Word32 #

pattern W64# :: Word# -> Word64 #

# Shifts

uncheckedShiftL64# :: Word64# -> Int# -> Word64# #

uncheckedShiftRL64# :: Word64# -> Int# -> Word64# #

# Byte swapping

byteSwap16 :: Word16 -> Word16 #

Reverse order of bytes in `Word16`.

@since base-4.7.0.0

byteSwap32 :: Word32 -> Word32 #

Reverse order of bytes in `Word32`.

@since base-4.7.0.0

byteSwap64 :: Word64 -> Word64 #

Reverse order of bytes in `Word64`.

@since base-4.7.0.0

# Bit reversal

bitReverse8 :: Word8 -> Word8 #

Reverse the order of the bits in a `Word8`.

@since base-4.14.0.0

bitReverse16 :: Word16 -> Word16 #

Reverse the order of the bits in a `Word16`.

@since base-4.14.0.0

bitReverse32 :: Word32 -> Word32 #

Reverse the order of the bits in a `Word32`.

@since base-4.14.0.0

bitReverse64 :: Word64 -> Word64 #

Reverse the order of the bits in a `Word64`.

@since base-4.14.0.0

# Equality operators

See GHC.Classes#matching_overloaded_methods_in_rules

eqWord :: Word -> Word -> Bool #

neWord :: Word -> Word -> Bool #

gtWord :: Word -> Word -> Bool #

geWord :: Word -> Word -> Bool #

ltWord :: Word -> Word -> Bool #

leWord :: Word -> Word -> Bool #

eqWord8 :: Word8 -> Word8 -> Bool #

neWord8 :: Word8 -> Word8 -> Bool #

gtWord8 :: Word8 -> Word8 -> Bool #

geWord8 :: Word8 -> Word8 -> Bool #

ltWord8 :: Word8 -> Word8 -> Bool #

leWord8 :: Word8 -> Word8 -> Bool #

eqWord16 :: Word16 -> Word16 -> Bool #

neWord16 :: Word16 -> Word16 -> Bool #

gtWord16 :: Word16 -> Word16 -> Bool #

geWord16 :: Word16 -> Word16 -> Bool #

ltWord16 :: Word16 -> Word16 -> Bool #

leWord16 :: Word16 -> Word16 -> Bool #

eqWord32 :: Word32 -> Word32 -> Bool #

neWord32 :: Word32 -> Word32 -> Bool #

gtWord32 :: Word32 -> Word32 -> Bool #

geWord32 :: Word32 -> Word32 -> Bool #

ltWord32 :: Word32 -> Word32 -> Bool #

leWord32 :: Word32 -> Word32 -> Bool #

eqWord64 :: Word64 -> Word64 -> Bool #

neWord64 :: Word64 -> Word64 -> Bool #

gtWord64 :: Word64 -> Word64 -> Bool #

geWord64 :: Word64 -> Word64 -> Bool #

ltWord64 :: Word64 -> Word64 -> Bool #

leWord64 :: Word64 -> Word64 -> Bool #