import GHC.Read
import GHC.Arr
import GHC.Show
+import GHC.Err
------------------------------------------------------------------------
-- Helper functions
| i# >=# 0# = smallInteger i#
| otherwise = wordToInteger x#
where
- i# = word2Int# x#
+ !i# = word2Int# x#
instance Bounded Word where
minBound = 0
(W# x#) .&. (W# y#) = W# (x# `and#` y#)
(W# x#) .|. (W# y#) = W# (x# `or#` y#)
(W# x#) `xor` (W# y#) = W# (x# `xor#` y#)
- complement (W# x#) = W# (x# `xor#` mb#) where W# mb# = maxBound
+ complement (W# x#) = W# (x# `xor#` mb#)
+ where !(W# mb#) = maxBound
(W# x#) `shift` (I# i#)
| i# >=# 0# = W# (x# `shiftL#` i#)
| otherwise = W# (x# `shiftRL#` negateInt# i#)
| i'# ==# 0# = W# x#
| otherwise = W# ((x# `uncheckedShiftL#` i'#) `or#` (x# `uncheckedShiftRL#` (wsib -# i'#)))
where
- i'# = word2Int# (int2Word# i# `and#` int2Word# (wsib -# 1#))
- wsib = WORD_SIZE_IN_BITS# {- work around preprocessor problem (??) -}
+ !i'# = word2Int# (int2Word# i# `and#` int2Word# (wsib -# 1#))
+ !wsib = WORD_SIZE_IN_BITS# {- work around preprocessor problem (??) -}
bitSize _ = WORD_SIZE_IN_BITS
isSigned _ = False
- {-# INLINE shiftR #-}
- -- same as the default definition, but we want it inlined (#2376)
- x `shiftR` i = x `shift` (-i)
-
{-# RULES
"fromIntegral/Int->Word" fromIntegral = \(I# x#) -> W# (int2Word# x#)
"fromIntegral/Word->Int" fromIntegral = \(W# x#) -> I# (word2Int# x#)
(W8# x#) .&. (W8# y#) = W8# (x# `and#` y#)
(W8# x#) .|. (W8# y#) = W8# (x# `or#` y#)
(W8# x#) `xor` (W8# y#) = W8# (x# `xor#` y#)
- complement (W8# x#) = W8# (x# `xor#` mb#) where W8# mb# = maxBound
+ complement (W8# x#) = W8# (x# `xor#` mb#)
+ where !(W8# mb#) = maxBound
(W8# x#) `shift` (I# i#)
| i# >=# 0# = W8# (narrow8Word# (x# `shiftL#` i#))
| otherwise = W8# (x# `shiftRL#` negateInt# i#)
| otherwise = W8# (narrow8Word# ((x# `uncheckedShiftL#` i'#) `or#`
(x# `uncheckedShiftRL#` (8# -# i'#))))
where
- i'# = word2Int# (int2Word# i# `and#` int2Word# 7#)
+ !i'# = word2Int# (int2Word# i# `and#` int2Word# 7#)
bitSize _ = 8
isSigned _ = False
- {-# INLINE shiftR #-}
- -- same as the default definition, but we want it inlined (#2376)
- x `shiftR` i = x `shift` (-i)
-
{-# RULES
"fromIntegral/Word8->Word8" fromIntegral = id :: Word8 -> Word8
"fromIntegral/Word8->Integer" fromIntegral = toInteger :: Word8 -> Integer
(W16# x#) .&. (W16# y#) = W16# (x# `and#` y#)
(W16# x#) .|. (W16# y#) = W16# (x# `or#` y#)
(W16# x#) `xor` (W16# y#) = W16# (x# `xor#` y#)
- complement (W16# x#) = W16# (x# `xor#` mb#) where W16# mb# = maxBound
+ complement (W16# x#) = W16# (x# `xor#` mb#)
+ where !(W16# mb#) = maxBound
(W16# x#) `shift` (I# i#)
| i# >=# 0# = W16# (narrow16Word# (x# `shiftL#` i#))
| otherwise = W16# (x# `shiftRL#` negateInt# i#)
| otherwise = W16# (narrow16Word# ((x# `uncheckedShiftL#` i'#) `or#`
(x# `uncheckedShiftRL#` (16# -# i'#))))
where
- i'# = word2Int# (int2Word# i# `and#` int2Word# 15#)
+ !i'# = word2Int# (int2Word# i# `and#` int2Word# 15#)
bitSize _ = 16
isSigned _ = False
- {-# INLINE shiftR #-}
- -- same as the default definition, but we want it inlined (#2376)
- x `shiftR` i = x `shift` (-i)
-
{-# RULES
"fromIntegral/Word8->Word16" fromIntegral = \(W8# x#) -> W16# x#
"fromIntegral/Word16->Word16" fromIntegral = id :: Word16 -> Word16
bitSize _ = 32
isSigned _ = False
- {-# INLINE shiftR #-}
- -- same as the default definition, but we want it inlined (#2376)
- x `shiftR` i = x `shift` (-i)
-
{-# RULES
"fromIntegral/Int->Word32" fromIntegral = \(I# x#) -> W32# (int32ToWord32# (intToInt32# x#))
"fromIntegral/Word->Word32" fromIntegral = \(W# x#) -> W32# (wordToWord32# x#)
| i# >=# 0# = smallInteger i#
| otherwise = wordToInteger x#
where
- i# = word2Int# x#
+ !i# = word2Int# x#
#else
= smallInteger (word2Int# x#)
#endif
(W32# x#) .&. (W32# y#) = W32# (x# `and#` y#)
(W32# x#) .|. (W32# y#) = W32# (x# `or#` y#)
(W32# x#) `xor` (W32# y#) = W32# (x# `xor#` y#)
- complement (W32# x#) = W32# (x# `xor#` mb#) where W32# mb# = maxBound
+ complement (W32# x#) = W32# (x# `xor#` mb#)
+ where !(W32# mb#) = maxBound
(W32# x#) `shift` (I# i#)
| i# >=# 0# = W32# (narrow32Word# (x# `shiftL#` i#))
| otherwise = W32# (x# `shiftRL#` negateInt# i#)
| otherwise = W32# (narrow32Word# ((x# `uncheckedShiftL#` i'#) `or#`
(x# `uncheckedShiftRL#` (32# -# i'#))))
where
- i'# = word2Int# (int2Word# i# `and#` int2Word# 31#)
+ !i'# = word2Int# (int2Word# i# `and#` int2Word# 31#)
bitSize _ = 32
isSigned _ = False
- {-# INLINE shiftR #-}
- -- same as the default definition, but we want it inlined (#2376)
- x `shiftR` i = x `shift` (-i)
-
{-# RULES
"fromIntegral/Word8->Word32" fromIntegral = \(W8# x#) -> W32# x#
"fromIntegral/Word16->Word32" fromIntegral = \(W16# x#) -> W32# x#
| otherwise = W64# ((x# `uncheckedShiftL64#` i'#) `or64#`
(x# `uncheckedShiftRL64#` (64# -# i'#)))
where
- i'# = word2Int# (int2Word# i# `and#` int2Word# 63#)
+ !i'# = word2Int# (int2Word# i# `and#` int2Word# 63#)
bitSize _ = 64
isSigned _ = False
- {-# INLINE shiftR #-}
- -- same as the default definition, but we want it inlined (#2376)
- x `shiftR` i = x `shift` (-i)
-
-- give the 64-bit shift operations the same treatment as the 32-bit
-- ones (see GHC.Base), namely we wrap them in tests to catch the
-- cases when we're shifting more than 64 bits to avoid unspecified
| i# >=# 0# = smallInteger i#
| otherwise = wordToInteger x#
where
- i# = word2Int# x#
+ !i# = word2Int# x#
instance Bits Word64 where
{-# INLINE shift #-}
(W64# x#) .&. (W64# y#) = W64# (x# `and#` y#)
(W64# x#) .|. (W64# y#) = W64# (x# `or#` y#)
(W64# x#) `xor` (W64# y#) = W64# (x# `xor#` y#)
- complement (W64# x#) = W64# (x# `xor#` mb#) where W64# mb# = maxBound
+ complement (W64# x#) = W64# (x# `xor#` mb#)
+ where !(W64# mb#) = maxBound
(W64# x#) `shift` (I# i#)
| i# >=# 0# = W64# (x# `shiftL#` i#)
| otherwise = W64# (x# `shiftRL#` negateInt# i#)
| otherwise = W64# ((x# `uncheckedShiftL#` i'#) `or#`
(x# `uncheckedShiftRL#` (64# -# i'#)))
where
- i'# = word2Int# (int2Word# i# `and#` int2Word# 63#)
+ !i'# = word2Int# (int2Word# i# `and#` int2Word# 63#)
bitSize _ = 64
isSigned _ = False
- {-# INLINE shiftR #-}
- -- same as the default definition, but we want it inlined (#2376)
- x `shiftR` i = x `shift` (-i)
-
{-# RULES
"fromIntegral/a->Word64" fromIntegral = \x -> case fromIntegral x of W# x# -> W64# x#
"fromIntegral/Word64->a" fromIntegral = \(W64# x#) -> fromIntegral (W# x#)