1 {-# OPTIONS_GHC -fno-implicit-prelude #-}
2 {-# OPTIONS_HADDOCK hide #-}
3 -----------------------------------------------------------------------------
6 -- Copyright : (c) The University of Glasgow 1997-2002
7 -- License : see libraries/base/LICENSE
9 -- Maintainer : cvs-ghc@haskell.org
10 -- Stability : internal
11 -- Portability : non-portable (GHC Extensions)
13 -- The sized integral datatypes, 'Int8', 'Int16', 'Int32', and 'Int64'.
15 -----------------------------------------------------------------------------
21 Int8(..), Int16(..), Int32(..), Int64(..),
22 uncheckedIShiftL64#, uncheckedIShiftRA64#
33 import GHC.Word hiding (uncheckedShiftL64#, uncheckedShiftRL64#)
36 ------------------------------------------------------------------------
38 ------------------------------------------------------------------------
40 -- Int8 is represented in the same way as Int. Operations may assume
41 -- and must ensure that it holds only values from its logical range.
43 data Int8 = I8# Int# deriving (Eq, Ord)
44 -- ^ 8-bit signed integer type
46 instance Show Int8 where
47 showsPrec p x = showsPrec p (fromIntegral x :: Int)
49 instance Num Int8 where
50 (I8# x#) + (I8# y#) = I8# (narrow8Int# (x# +# y#))
51 (I8# x#) - (I8# y#) = I8# (narrow8Int# (x# -# y#))
52 (I8# x#) * (I8# y#) = I8# (narrow8Int# (x# *# y#))
53 negate (I8# x#) = I8# (narrow8Int# (negateInt# x#))
55 | otherwise = negate x
59 fromInteger i = I8# (narrow8Int# (toInt# i))
61 instance Real Int8 where
62 toRational x = toInteger x % 1
64 instance Enum Int8 where
66 | x /= maxBound = x + 1
67 | otherwise = succError "Int8"
69 | x /= minBound = x - 1
70 | otherwise = predError "Int8"
72 | i >= fromIntegral (minBound::Int8) && i <= fromIntegral (maxBound::Int8)
74 | otherwise = toEnumError "Int8" i (minBound::Int8, maxBound::Int8)
75 fromEnum (I8# x#) = I# x#
76 enumFrom = boundedEnumFrom
77 enumFromThen = boundedEnumFromThen
79 instance Integral Int8 where
80 quot x@(I8# x#) y@(I8# y#)
81 | y == 0 = divZeroError
82 | x == minBound && y == (-1) = overflowError
83 | otherwise = I8# (narrow8Int# (x# `quotInt#` y#))
84 rem x@(I8# x#) y@(I8# y#)
85 | y == 0 = divZeroError
86 | x == minBound && y == (-1) = overflowError
87 | otherwise = I8# (narrow8Int# (x# `remInt#` y#))
88 div x@(I8# x#) y@(I8# y#)
89 | y == 0 = divZeroError
90 | x == minBound && y == (-1) = overflowError
91 | otherwise = I8# (narrow8Int# (x# `divInt#` y#))
92 mod x@(I8# x#) y@(I8# y#)
93 | y == 0 = divZeroError
94 | x == minBound && y == (-1) = overflowError
95 | otherwise = I8# (narrow8Int# (x# `modInt#` y#))
96 quotRem x@(I8# x#) y@(I8# y#)
97 | y == 0 = divZeroError
98 | x == minBound && y == (-1) = overflowError
99 | otherwise = (I8# (narrow8Int# (x# `quotInt#` y#)),
100 I8# (narrow8Int# (x# `remInt#` y#)))
101 divMod x@(I8# x#) y@(I8# y#)
102 | y == 0 = divZeroError
103 | x == minBound && y == (-1) = overflowError
104 | otherwise = (I8# (narrow8Int# (x# `divInt#` y#)),
105 I8# (narrow8Int# (x# `modInt#` y#)))
106 toInteger (I8# x#) = smallInteger x#
108 instance Bounded Int8 where
112 instance Ix Int8 where
114 unsafeIndex b@(m,_) i = fromIntegral i - fromIntegral m
115 inRange (m,n) i = m <= i && i <= n
117 instance Read Int8 where
118 readsPrec p s = [(fromIntegral (x::Int), r) | (x, r) <- readsPrec p s]
120 instance Bits Int8 where
123 (I8# x#) .&. (I8# y#) = I8# (word2Int# (int2Word# x# `and#` int2Word# y#))
124 (I8# x#) .|. (I8# y#) = I8# (word2Int# (int2Word# x# `or#` int2Word# y#))
125 (I8# x#) `xor` (I8# y#) = I8# (word2Int# (int2Word# x# `xor#` int2Word# y#))
126 complement (I8# x#) = I8# (word2Int# (int2Word# x# `xor#` int2Word# (-1#)))
127 (I8# x#) `shift` (I# i#)
128 | i# >=# 0# = I8# (narrow8Int# (x# `iShiftL#` i#))
129 | otherwise = I8# (x# `iShiftRA#` negateInt# i#)
130 (I8# x#) `rotate` (I# i#)
134 = I8# (narrow8Int# (word2Int# ((x'# `uncheckedShiftL#` i'#) `or#`
135 (x'# `uncheckedShiftRL#` (8# -# i'#)))))
137 x'# = narrow8Word# (int2Word# x#)
138 i'# = word2Int# (int2Word# i# `and#` int2Word# 7#)
143 "fromIntegral/Int8->Int8" fromIntegral = id :: Int8 -> Int8
144 "fromIntegral/a->Int8" fromIntegral = \x -> case fromIntegral x of I# x# -> I8# (narrow8Int# x#)
145 "fromIntegral/Int8->a" fromIntegral = \(I8# x#) -> fromIntegral (I# x#)
148 ------------------------------------------------------------------------
150 ------------------------------------------------------------------------
152 -- Int16 is represented in the same way as Int. Operations may assume
153 -- and must ensure that it holds only values from its logical range.
155 data Int16 = I16# Int# deriving (Eq, Ord)
156 -- ^ 16-bit signed integer type
158 instance Show Int16 where
159 showsPrec p x = showsPrec p (fromIntegral x :: Int)
161 instance Num Int16 where
162 (I16# x#) + (I16# y#) = I16# (narrow16Int# (x# +# y#))
163 (I16# x#) - (I16# y#) = I16# (narrow16Int# (x# -# y#))
164 (I16# x#) * (I16# y#) = I16# (narrow16Int# (x# *# y#))
165 negate (I16# x#) = I16# (narrow16Int# (negateInt# x#))
167 | otherwise = negate x
171 fromInteger i = I16# (narrow16Int# (toInt# i))
173 instance Real Int16 where
174 toRational x = toInteger x % 1
176 instance Enum Int16 where
178 | x /= maxBound = x + 1
179 | otherwise = succError "Int16"
181 | x /= minBound = x - 1
182 | otherwise = predError "Int16"
184 | i >= fromIntegral (minBound::Int16) && i <= fromIntegral (maxBound::Int16)
186 | otherwise = toEnumError "Int16" i (minBound::Int16, maxBound::Int16)
187 fromEnum (I16# x#) = I# x#
188 enumFrom = boundedEnumFrom
189 enumFromThen = boundedEnumFromThen
191 instance Integral Int16 where
192 quot x@(I16# x#) y@(I16# y#)
193 | y == 0 = divZeroError
194 | x == minBound && y == (-1) = overflowError
195 | otherwise = I16# (narrow16Int# (x# `quotInt#` y#))
196 rem x@(I16# x#) y@(I16# y#)
197 | y == 0 = divZeroError
198 | x == minBound && y == (-1) = overflowError
199 | otherwise = I16# (narrow16Int# (x# `remInt#` y#))
200 div x@(I16# x#) y@(I16# y#)
201 | y == 0 = divZeroError
202 | x == minBound && y == (-1) = overflowError
203 | otherwise = I16# (narrow16Int# (x# `divInt#` y#))
204 mod x@(I16# x#) y@(I16# y#)
205 | y == 0 = divZeroError
206 | x == minBound && y == (-1) = overflowError
207 | otherwise = I16# (narrow16Int# (x# `modInt#` y#))
208 quotRem x@(I16# x#) y@(I16# y#)
209 | y == 0 = divZeroError
210 | x == minBound && y == (-1) = overflowError
211 | otherwise = (I16# (narrow16Int# (x# `quotInt#` y#)),
212 I16# (narrow16Int# (x# `remInt#` y#)))
213 divMod x@(I16# x#) y@(I16# y#)
214 | y == 0 = divZeroError
215 | x == minBound && y == (-1) = overflowError
216 | otherwise = (I16# (narrow16Int# (x# `divInt#` y#)),
217 I16# (narrow16Int# (x# `modInt#` y#)))
218 toInteger (I16# x#) = smallInteger x#
220 instance Bounded Int16 where
224 instance Ix Int16 where
226 unsafeIndex b@(m,_) i = fromIntegral i - fromIntegral m
227 inRange (m,n) i = m <= i && i <= n
229 instance Read Int16 where
230 readsPrec p s = [(fromIntegral (x::Int), r) | (x, r) <- readsPrec p s]
232 instance Bits Int16 where
235 (I16# x#) .&. (I16# y#) = I16# (word2Int# (int2Word# x# `and#` int2Word# y#))
236 (I16# x#) .|. (I16# y#) = I16# (word2Int# (int2Word# x# `or#` int2Word# y#))
237 (I16# x#) `xor` (I16# y#) = I16# (word2Int# (int2Word# x# `xor#` int2Word# y#))
238 complement (I16# x#) = I16# (word2Int# (int2Word# x# `xor#` int2Word# (-1#)))
239 (I16# x#) `shift` (I# i#)
240 | i# >=# 0# = I16# (narrow16Int# (x# `iShiftL#` i#))
241 | otherwise = I16# (x# `iShiftRA#` negateInt# i#)
242 (I16# x#) `rotate` (I# i#)
246 = I16# (narrow16Int# (word2Int# ((x'# `uncheckedShiftL#` i'#) `or#`
247 (x'# `uncheckedShiftRL#` (16# -# i'#)))))
249 x'# = narrow16Word# (int2Word# x#)
250 i'# = word2Int# (int2Word# i# `and#` int2Word# 15#)
255 "fromIntegral/Word8->Int16" fromIntegral = \(W8# x#) -> I16# (word2Int# x#)
256 "fromIntegral/Int8->Int16" fromIntegral = \(I8# x#) -> I16# x#
257 "fromIntegral/Int16->Int16" fromIntegral = id :: Int16 -> Int16
258 "fromIntegral/a->Int16" fromIntegral = \x -> case fromIntegral x of I# x# -> I16# (narrow16Int# x#)
259 "fromIntegral/Int16->a" fromIntegral = \(I16# x#) -> fromIntegral (I# x#)
262 ------------------------------------------------------------------------
264 ------------------------------------------------------------------------
266 #if WORD_SIZE_IN_BITS < 32
268 data Int32 = I32# Int32#
269 -- ^ 32-bit signed integer type
271 instance Eq Int32 where
272 (I32# x#) == (I32# y#) = x# `eqInt32#` y#
273 (I32# x#) /= (I32# y#) = x# `neInt32#` y#
275 instance Ord Int32 where
276 (I32# x#) < (I32# y#) = x# `ltInt32#` y#
277 (I32# x#) <= (I32# y#) = x# `leInt32#` y#
278 (I32# x#) > (I32# y#) = x# `gtInt32#` y#
279 (I32# x#) >= (I32# y#) = x# `geInt32#` y#
281 instance Show Int32 where
282 showsPrec p x = showsPrec p (toInteger x)
284 instance Num Int32 where
285 (I32# x#) + (I32# y#) = I32# (x# `plusInt32#` y#)
286 (I32# x#) - (I32# y#) = I32# (x# `minusInt32#` y#)
287 (I32# x#) * (I32# y#) = I32# (x# `timesInt32#` y#)
288 negate (I32# x#) = I32# (negateInt32# x#)
290 | otherwise = negate x
294 fromInteger (S# i#) = I32# (intToInt32# i#)
295 fromInteger (J# s# d#) = I32# (integerToInt32# s# d#)
297 instance Enum Int32 where
299 | x /= maxBound = x + 1
300 | otherwise = succError "Int32"
302 | x /= minBound = x - 1
303 | otherwise = predError "Int32"
304 toEnum (I# i#) = I32# (intToInt32# i#)
306 | x >= fromIntegral (minBound::Int) && x <= fromIntegral (maxBound::Int)
307 = I# (int32ToInt# x#)
308 | otherwise = fromEnumError "Int32" x
309 enumFrom = integralEnumFrom
310 enumFromThen = integralEnumFromThen
311 enumFromTo = integralEnumFromTo
312 enumFromThenTo = integralEnumFromThenTo
314 instance Integral Int32 where
315 quot x@(I32# x#) y@(I32# y#)
316 | y == 0 = divZeroError
317 | x == minBound && y == (-1) = overflowError
318 | otherwise = I32# (x# `quotInt32#` y#)
319 rem x@(I32# x#) y@(I32# y#)
320 | y == 0 = divZeroError
321 | x == minBound && y == (-1) = overflowError
322 | otherwise = I32# (x# `remInt32#` y#)
323 div x@(I32# x#) y@(I32# y#)
324 | y == 0 = divZeroError
325 | x == minBound && y == (-1) = overflowError
326 | otherwise = I32# (x# `divInt32#` y#)
327 mod x@(I32# x#) y@(I32# y#)
328 | y == 0 = divZeroError
329 | x == minBound && y == (-1) = overflowError
330 | otherwise = I32# (x# `modInt32#` y#)
331 quotRem x@(I32# x#) y@(I32# y#)
332 | y == 0 = divZeroError
333 | x == minBound && y == (-1) = overflowError
334 | otherwise = (I32# (x# `quotInt32#` y#),
335 I32# (x# `remInt32#` y#))
336 divMod x@(I32# x#) y@(I32# y#)
337 | y == 0 = divZeroError
338 | x == minBound && y == (-1) = overflowError
339 | otherwise = (I32# (x# `divInt32#` y#),
340 I32# (x# `modInt32#` y#))
341 toInteger x@(I32# x#)
342 | x >= fromIntegral (minBound::Int) && x <= fromIntegral (maxBound::Int)
343 = smallInteger (int32ToInt# x#)
344 | otherwise = case int32ToInteger# x# of (# s, d #) -> J# s d
346 divInt32#, modInt32# :: Int32# -> Int32# -> Int32#
348 | (x# `gtInt32#` intToInt32# 0#) && (y# `ltInt32#` intToInt32# 0#)
349 = ((x# `minusInt32#` y#) `minusInt32#` intToInt32# 1#) `quotInt32#` y#
350 | (x# `ltInt32#` intToInt32# 0#) && (y# `gtInt32#` intToInt32# 0#)
351 = ((x# `minusInt32#` y#) `plusInt32#` intToInt32# 1#) `quotInt32#` y#
352 | otherwise = x# `quotInt32#` y#
354 | (x# `gtInt32#` intToInt32# 0#) && (y# `ltInt32#` intToInt32# 0#) ||
355 (x# `ltInt32#` intToInt32# 0#) && (y# `gtInt32#` intToInt32# 0#)
356 = if r# `neInt32#` intToInt32# 0# then r# `plusInt32#` y# else intToInt32# 0#
359 r# = x# `remInt32#` y#
361 instance Read Int32 where
362 readsPrec p s = [(fromInteger x, r) | (x, r) <- readsPrec p s]
364 instance Bits Int32 where
367 (I32# x#) .&. (I32# y#) = I32# (word32ToInt32# (int32ToWord32# x# `and32#` int32ToWord32# y#))
368 (I32# x#) .|. (I32# y#) = I32# (word32ToInt32# (int32ToWord32# x# `or32#` int32ToWord32# y#))
369 (I32# x#) `xor` (I32# y#) = I32# (word32ToInt32# (int32ToWord32# x# `xor32#` int32ToWord32# y#))
370 complement (I32# x#) = I32# (word32ToInt32# (not32# (int32ToWord32# x#)))
371 (I32# x#) `shift` (I# i#)
372 | i# >=# 0# = I32# (x# `iShiftL32#` i#)
373 | otherwise = I32# (x# `iShiftRA32#` negateInt# i#)
374 (I32# x#) `rotate` (I# i#)
378 = I32# (word32ToInt32# ((x'# `shiftL32#` i'#) `or32#`
379 (x'# `shiftRL32#` (32# -# i'#))))
381 x'# = int32ToWord32# x#
382 i'# = word2Int# (int2Word# i# `and#` int2Word# 31#)
386 foreign import "stg_eqInt32" unsafe eqInt32# :: Int32# -> Int32# -> Bool
387 foreign import "stg_neInt32" unsafe neInt32# :: Int32# -> Int32# -> Bool
388 foreign import "stg_ltInt32" unsafe ltInt32# :: Int32# -> Int32# -> Bool
389 foreign import "stg_leInt32" unsafe leInt32# :: Int32# -> Int32# -> Bool
390 foreign import "stg_gtInt32" unsafe gtInt32# :: Int32# -> Int32# -> Bool
391 foreign import "stg_geInt32" unsafe geInt32# :: Int32# -> Int32# -> Bool
392 foreign import "stg_plusInt32" unsafe plusInt32# :: Int32# -> Int32# -> Int32#
393 foreign import "stg_minusInt32" unsafe minusInt32# :: Int32# -> Int32# -> Int32#
394 foreign import "stg_timesInt32" unsafe timesInt32# :: Int32# -> Int32# -> Int32#
395 foreign import "stg_negateInt32" unsafe negateInt32# :: Int32# -> Int32#
396 foreign import "stg_quotInt32" unsafe quotInt32# :: Int32# -> Int32# -> Int32#
397 foreign import "stg_remInt32" unsafe remInt32# :: Int32# -> Int32# -> Int32#
398 foreign import "stg_intToInt32" unsafe intToInt32# :: Int# -> Int32#
399 foreign import "stg_int32ToInt" unsafe int32ToInt# :: Int32# -> Int#
400 foreign import "stg_wordToWord32" unsafe wordToWord32# :: Word# -> Word32#
401 foreign import "stg_int32ToWord32" unsafe int32ToWord32# :: Int32# -> Word32#
402 foreign import "stg_word32ToInt32" unsafe word32ToInt32# :: Word32# -> Int32#
403 foreign import "stg_and32" unsafe and32# :: Word32# -> Word32# -> Word32#
404 foreign import "stg_or32" unsafe or32# :: Word32# -> Word32# -> Word32#
405 foreign import "stg_xor32" unsafe xor32# :: Word32# -> Word32# -> Word32#
406 foreign import "stg_not32" unsafe not32# :: Word32# -> Word32#
407 foreign import "stg_iShiftL32" unsafe iShiftL32# :: Int32# -> Int# -> Int32#
408 foreign import "stg_iShiftRA32" unsafe iShiftRA32# :: Int32# -> Int# -> Int32#
409 foreign import "stg_shiftL32" unsafe shiftL32# :: Word32# -> Int# -> Word32#
410 foreign import "stg_shiftRL32" unsafe shiftRL32# :: Word32# -> Int# -> Word32#
413 "fromIntegral/Int->Int32" fromIntegral = \(I# x#) -> I32# (intToInt32# x#)
414 "fromIntegral/Word->Int32" fromIntegral = \(W# x#) -> I32# (word32ToInt32# (wordToWord32# x#))
415 "fromIntegral/Word32->Int32" fromIntegral = \(W32# x#) -> I32# (word32ToInt32# x#)
416 "fromIntegral/Int32->Int" fromIntegral = \(I32# x#) -> I# (int32ToInt# x#)
417 "fromIntegral/Int32->Word" fromIntegral = \(I32# x#) -> W# (int2Word# (int32ToInt# x#))
418 "fromIntegral/Int32->Word32" fromIntegral = \(I32# x#) -> W32# (int32ToWord32# x#)
419 "fromIntegral/Int32->Int32" fromIntegral = id :: Int32 -> Int32
424 -- Int32 is represented in the same way as Int.
425 #if WORD_SIZE_IN_BITS > 32
426 -- Operations may assume and must ensure that it holds only values
427 -- from its logical range.
430 data Int32 = I32# Int# deriving (Eq, Ord)
431 -- ^ 32-bit signed integer type
433 instance Show Int32 where
434 showsPrec p x = showsPrec p (fromIntegral x :: Int)
436 instance Num Int32 where
437 (I32# x#) + (I32# y#) = I32# (narrow32Int# (x# +# y#))
438 (I32# x#) - (I32# y#) = I32# (narrow32Int# (x# -# y#))
439 (I32# x#) * (I32# y#) = I32# (narrow32Int# (x# *# y#))
440 negate (I32# x#) = I32# (narrow32Int# (negateInt# x#))
442 | otherwise = negate x
446 fromInteger i = I32# (narrow32Int# (toInt# i))
448 instance Enum Int32 where
450 | x /= maxBound = x + 1
451 | otherwise = succError "Int32"
453 | x /= minBound = x - 1
454 | otherwise = predError "Int32"
455 #if WORD_SIZE_IN_BITS == 32
456 toEnum (I# i#) = I32# i#
459 | i >= fromIntegral (minBound::Int32) && i <= fromIntegral (maxBound::Int32)
461 | otherwise = toEnumError "Int32" i (minBound::Int32, maxBound::Int32)
463 fromEnum (I32# x#) = I# x#
464 enumFrom = boundedEnumFrom
465 enumFromThen = boundedEnumFromThen
467 instance Integral Int32 where
468 quot x@(I32# x#) y@(I32# y#)
469 | y == 0 = divZeroError
470 | x == minBound && y == (-1) = overflowError
471 | otherwise = I32# (narrow32Int# (x# `quotInt#` y#))
472 rem x@(I32# x#) y@(I32# y#)
473 | y == 0 = divZeroError
474 | x == minBound && y == (-1) = overflowError
475 | otherwise = I32# (narrow32Int# (x# `remInt#` y#))
476 div x@(I32# x#) y@(I32# y#)
477 | y == 0 = divZeroError
478 | x == minBound && y == (-1) = overflowError
479 | otherwise = I32# (narrow32Int# (x# `divInt#` y#))
480 mod x@(I32# x#) y@(I32# y#)
481 | y == 0 = divZeroError
482 | x == minBound && y == (-1) = overflowError
483 | otherwise = I32# (narrow32Int# (x# `modInt#` y#))
484 quotRem x@(I32# x#) y@(I32# y#)
485 | y == 0 = divZeroError
486 | x == minBound && y == (-1) = overflowError
487 | otherwise = (I32# (narrow32Int# (x# `quotInt#` y#)),
488 I32# (narrow32Int# (x# `remInt#` y#)))
489 divMod x@(I32# x#) y@(I32# y#)
490 | y == 0 = divZeroError
491 | x == minBound && y == (-1) = overflowError
492 | otherwise = (I32# (narrow32Int# (x# `divInt#` y#)),
493 I32# (narrow32Int# (x# `modInt#` y#)))
494 toInteger (I32# x#) = smallInteger x#
496 instance Read Int32 where
497 readsPrec p s = [(fromIntegral (x::Int), r) | (x, r) <- readsPrec p s]
499 instance Bits Int32 where
502 (I32# x#) .&. (I32# y#) = I32# (word2Int# (int2Word# x# `and#` int2Word# y#))
503 (I32# x#) .|. (I32# y#) = I32# (word2Int# (int2Word# x# `or#` int2Word# y#))
504 (I32# x#) `xor` (I32# y#) = I32# (word2Int# (int2Word# x# `xor#` int2Word# y#))
505 complement (I32# x#) = I32# (word2Int# (int2Word# x# `xor#` int2Word# (-1#)))
506 (I32# x#) `shift` (I# i#)
507 | i# >=# 0# = I32# (narrow32Int# (x# `iShiftL#` i#))
508 | otherwise = I32# (x# `iShiftRA#` negateInt# i#)
509 (I32# x#) `rotate` (I# i#)
513 = I32# (narrow32Int# (word2Int# ((x'# `uncheckedShiftL#` i'#) `or#`
514 (x'# `uncheckedShiftRL#` (32# -# i'#)))))
516 x'# = narrow32Word# (int2Word# x#)
517 i'# = word2Int# (int2Word# i# `and#` int2Word# 31#)
522 "fromIntegral/Word8->Int32" fromIntegral = \(W8# x#) -> I32# (word2Int# x#)
523 "fromIntegral/Word16->Int32" fromIntegral = \(W16# x#) -> I32# (word2Int# x#)
524 "fromIntegral/Int8->Int32" fromIntegral = \(I8# x#) -> I32# x#
525 "fromIntegral/Int16->Int32" fromIntegral = \(I16# x#) -> I32# x#
526 "fromIntegral/Int32->Int32" fromIntegral = id :: Int32 -> Int32
527 "fromIntegral/a->Int32" fromIntegral = \x -> case fromIntegral x of I# x# -> I32# (narrow32Int# x#)
528 "fromIntegral/Int32->a" fromIntegral = \(I32# x#) -> fromIntegral (I# x#)
533 instance Real Int32 where
534 toRational x = toInteger x % 1
536 instance Bounded Int32 where
537 minBound = -0x80000000
538 maxBound = 0x7FFFFFFF
540 instance Ix Int32 where
542 unsafeIndex b@(m,_) i = fromIntegral i - fromIntegral m
543 inRange (m,n) i = m <= i && i <= n
545 ------------------------------------------------------------------------
547 ------------------------------------------------------------------------
549 #if WORD_SIZE_IN_BITS < 64
551 data Int64 = I64# Int64#
552 -- ^ 64-bit signed integer type
554 instance Eq Int64 where
555 (I64# x#) == (I64# y#) = x# `eqInt64#` y#
556 (I64# x#) /= (I64# y#) = x# `neInt64#` y#
558 instance Ord Int64 where
559 (I64# x#) < (I64# y#) = x# `ltInt64#` y#
560 (I64# x#) <= (I64# y#) = x# `leInt64#` y#
561 (I64# x#) > (I64# y#) = x# `gtInt64#` y#
562 (I64# x#) >= (I64# y#) = x# `geInt64#` y#
564 instance Show Int64 where
565 showsPrec p x = showsPrec p (toInteger x)
567 instance Num Int64 where
568 (I64# x#) + (I64# y#) = I64# (x# `plusInt64#` y#)
569 (I64# x#) - (I64# y#) = I64# (x# `minusInt64#` y#)
570 (I64# x#) * (I64# y#) = I64# (x# `timesInt64#` y#)
571 negate (I64# x#) = I64# (negateInt64# x#)
573 | otherwise = negate x
577 fromInteger (S# i#) = I64# (intToInt64# i#)
578 fromInteger (J# s# d#) = I64# (integerToInt64# s# d#)
580 instance Enum Int64 where
582 | x /= maxBound = x + 1
583 | otherwise = succError "Int64"
585 | x /= minBound = x - 1
586 | otherwise = predError "Int64"
587 toEnum (I# i#) = I64# (intToInt64# i#)
589 | x >= fromIntegral (minBound::Int) && x <= fromIntegral (maxBound::Int)
590 = I# (int64ToInt# x#)
591 | otherwise = fromEnumError "Int64" x
592 enumFrom = integralEnumFrom
593 enumFromThen = integralEnumFromThen
594 enumFromTo = integralEnumFromTo
595 enumFromThenTo = integralEnumFromThenTo
597 instance Integral Int64 where
598 quot x@(I64# x#) y@(I64# y#)
599 | y == 0 = divZeroError
600 | x == minBound && y == (-1) = overflowError
601 | otherwise = I64# (x# `quotInt64#` y#)
602 rem x@(I64# x#) y@(I64# y#)
603 | y == 0 = divZeroError
604 | x == minBound && y == (-1) = overflowError
605 | otherwise = I64# (x# `remInt64#` y#)
606 div x@(I64# x#) y@(I64# y#)
607 | y == 0 = divZeroError
608 | x == minBound && y == (-1) = overflowError
609 | otherwise = I64# (x# `divInt64#` y#)
610 mod x@(I64# x#) y@(I64# y#)
611 | y == 0 = divZeroError
612 | x == minBound && y == (-1) = overflowError
613 | otherwise = I64# (x# `modInt64#` y#)
614 quotRem x@(I64# x#) y@(I64# y#)
615 | y == 0 = divZeroError
616 | x == minBound && y == (-1) = overflowError
617 | otherwise = (I64# (x# `quotInt64#` y#),
618 I64# (x# `remInt64#` y#))
619 divMod x@(I64# x#) y@(I64# y#)
620 | y == 0 = divZeroError
621 | x == minBound && y == (-1) = overflowError
622 | otherwise = (I64# (x# `divInt64#` y#),
623 I64# (x# `modInt64#` y#))
624 toInteger x@(I64# x#)
625 | x >= fromIntegral (minBound::Int) &&
626 x <= fromIntegral (maxBound::Int)
627 = smallInteger (int64ToInt# x#)
628 | otherwise = case int64ToInteger# x# of
632 divInt64#, modInt64# :: Int64# -> Int64# -> Int64#
634 | (x# `gtInt64#` intToInt64# 0#) && (y# `ltInt64#` intToInt64# 0#)
635 = ((x# `minusInt64#` y#) `minusInt64#` intToInt64# 1#) `quotInt64#` y#
636 | (x# `ltInt64#` intToInt64# 0#) && (y# `gtInt64#` intToInt64# 0#)
637 = ((x# `minusInt64#` y#) `plusInt64#` intToInt64# 1#) `quotInt64#` y#
638 | otherwise = x# `quotInt64#` y#
640 | (x# `gtInt64#` intToInt64# 0#) && (y# `ltInt64#` intToInt64# 0#) ||
641 (x# `ltInt64#` intToInt64# 0#) && (y# `gtInt64#` intToInt64# 0#)
642 = if r# `neInt64#` intToInt64# 0# then r# `plusInt64#` y# else intToInt64# 0#
645 r# = x# `remInt64#` y#
647 instance Read Int64 where
648 readsPrec p s = [(fromInteger x, r) | (x, r) <- readsPrec p s]
650 instance Bits Int64 where
653 (I64# x#) .&. (I64# y#) = I64# (word64ToInt64# (int64ToWord64# x# `and64#` int64ToWord64# y#))
654 (I64# x#) .|. (I64# y#) = I64# (word64ToInt64# (int64ToWord64# x# `or64#` int64ToWord64# y#))
655 (I64# x#) `xor` (I64# y#) = I64# (word64ToInt64# (int64ToWord64# x# `xor64#` int64ToWord64# y#))
656 complement (I64# x#) = I64# (word64ToInt64# (not64# (int64ToWord64# x#)))
657 (I64# x#) `shift` (I# i#)
658 | i# >=# 0# = I64# (x# `iShiftL64#` i#)
659 | otherwise = I64# (x# `iShiftRA64#` negateInt# i#)
660 (I64# x#) `rotate` (I# i#)
664 = I64# (word64ToInt64# ((x'# `uncheckedShiftL64#` i'#) `or64#`
665 (x'# `uncheckedShiftRL64#` (64# -# i'#))))
667 x'# = int64ToWord64# x#
668 i'# = word2Int# (int2Word# i# `and#` int2Word# 63#)
673 -- give the 64-bit shift operations the same treatment as the 32-bit
674 -- ones (see GHC.Base), namely we wrap them in tests to catch the
675 -- cases when we're shifting more than 64 bits to avoid unspecified
676 -- behaviour in the C shift operations.
678 iShiftL64#, iShiftRA64# :: Int64# -> Int# -> Int64#
680 a `iShiftL64#` b | b >=# 64# = intToInt64# 0#
681 | otherwise = a `uncheckedIShiftL64#` b
683 a `iShiftRA64#` b | b >=# 64# = if a `ltInt64#` (intToInt64# 0#)
684 then intToInt64# (-1#)
686 | otherwise = a `uncheckedIShiftRA64#` b
689 foreign import ccall unsafe "hs_eqInt64" eqInt64# :: Int64# -> Int64# -> Bool
690 foreign import ccall unsafe "hs_neInt64" neInt64# :: Int64# -> Int64# -> Bool
691 foreign import ccall unsafe "hs_ltInt64" ltInt64# :: Int64# -> Int64# -> Bool
692 foreign import ccall unsafe "hs_leInt64" leInt64# :: Int64# -> Int64# -> Bool
693 foreign import ccall unsafe "hs_gtInt64" gtInt64# :: Int64# -> Int64# -> Bool
694 foreign import ccall unsafe "hs_geInt64" geInt64# :: Int64# -> Int64# -> Bool
695 foreign import ccall unsafe "hs_plusInt64" plusInt64# :: Int64# -> Int64# -> Int64#
696 foreign import ccall unsafe "hs_minusInt64" minusInt64# :: Int64# -> Int64# -> Int64#
697 foreign import ccall unsafe "hs_timesInt64" timesInt64# :: Int64# -> Int64# -> Int64#
698 foreign import ccall unsafe "hs_negateInt64" negateInt64# :: Int64# -> Int64#
699 foreign import ccall unsafe "hs_quotInt64" quotInt64# :: Int64# -> Int64# -> Int64#
700 foreign import ccall unsafe "hs_remInt64" remInt64# :: Int64# -> Int64# -> Int64#
701 foreign import ccall unsafe "hs_intToInt64" intToInt64# :: Int# -> Int64#
702 foreign import ccall unsafe "hs_int64ToInt" int64ToInt# :: Int64# -> Int#
703 foreign import ccall unsafe "hs_wordToWord64" wordToWord64# :: Word# -> Word64#
704 foreign import ccall unsafe "hs_int64ToWord64" int64ToWord64# :: Int64# -> Word64#
705 foreign import ccall unsafe "hs_word64ToInt64" word64ToInt64# :: Word64# -> Int64#
706 foreign import ccall unsafe "hs_and64" and64# :: Word64# -> Word64# -> Word64#
707 foreign import ccall unsafe "hs_or64" or64# :: Word64# -> Word64# -> Word64#
708 foreign import ccall unsafe "hs_xor64" xor64# :: Word64# -> Word64# -> Word64#
709 foreign import ccall unsafe "hs_not64" not64# :: Word64# -> Word64#
710 foreign import ccall unsafe "hs_uncheckedShiftL64" uncheckedShiftL64# :: Word64# -> Int# -> Word64#
711 foreign import ccall unsafe "hs_uncheckedShiftRL64" uncheckedShiftRL64# :: Word64# -> Int# -> Word64#
712 foreign import ccall unsafe "hs_uncheckedIShiftL64" uncheckedIShiftL64# :: Int64# -> Int# -> Int64#
713 foreign import ccall unsafe "hs_uncheckedIShiftRA64" uncheckedIShiftRA64# :: Int64# -> Int# -> Int64#
715 foreign import ccall unsafe "hs_integerToInt64" integerToInt64# :: Int# -> ByteArray# -> Int64#
718 "fromIntegral/Int->Int64" fromIntegral = \(I# x#) -> I64# (intToInt64# x#)
719 "fromIntegral/Word->Int64" fromIntegral = \(W# x#) -> I64# (word64ToInt64# (wordToWord64# x#))
720 "fromIntegral/Word64->Int64" fromIntegral = \(W64# x#) -> I64# (word64ToInt64# x#)
721 "fromIntegral/Int64->Int" fromIntegral = \(I64# x#) -> I# (int64ToInt# x#)
722 "fromIntegral/Int64->Word" fromIntegral = \(I64# x#) -> W# (int2Word# (int64ToInt# x#))
723 "fromIntegral/Int64->Word64" fromIntegral = \(I64# x#) -> W64# (int64ToWord64# x#)
724 "fromIntegral/Int64->Int64" fromIntegral = id :: Int64 -> Int64
729 -- Int64 is represented in the same way as Int.
730 -- Operations may assume and must ensure that it holds only values
731 -- from its logical range.
733 data Int64 = I64# Int# deriving (Eq, Ord)
734 -- ^ 64-bit signed integer type
736 instance Show Int64 where
737 showsPrec p x = showsPrec p (fromIntegral x :: Int)
739 instance Num Int64 where
740 (I64# x#) + (I64# y#) = I64# (x# +# y#)
741 (I64# x#) - (I64# y#) = I64# (x# -# y#)
742 (I64# x#) * (I64# y#) = I64# (x# *# y#)
743 negate (I64# x#) = I64# (negateInt# x#)
745 | otherwise = negate x
749 fromInteger i = I64# (toInt# i)
751 instance Enum Int64 where
753 | x /= maxBound = x + 1
754 | otherwise = succError "Int64"
756 | x /= minBound = x - 1
757 | otherwise = predError "Int64"
758 toEnum (I# i#) = I64# i#
759 fromEnum (I64# x#) = I# x#
760 enumFrom = boundedEnumFrom
761 enumFromThen = boundedEnumFromThen
763 instance Integral Int64 where
764 quot x@(I64# x#) y@(I64# y#)
765 | y == 0 = divZeroError
766 | x == minBound && y == (-1) = overflowError
767 | otherwise = I64# (x# `quotInt#` y#)
768 rem x@(I64# x#) y@(I64# y#)
769 | y == 0 = divZeroError
770 | x == minBound && y == (-1) = overflowError
771 | otherwise = I64# (x# `remInt#` y#)
772 div x@(I64# x#) y@(I64# y#)
773 | y == 0 = divZeroError
774 | x == minBound && y == (-1) = overflowError
775 | otherwise = I64# (x# `divInt#` y#)
776 mod x@(I64# x#) y@(I64# y#)
777 | y == 0 = divZeroError
778 | x == minBound && y == (-1) = overflowError
779 | otherwise = I64# (x# `modInt#` y#)
780 quotRem x@(I64# x#) y@(I64# y#)
781 | y == 0 = divZeroError
782 | x == minBound && y == (-1) = overflowError
783 | otherwise = (I64# (x# `quotInt#` y#), I64# (x# `remInt#` y#))
784 divMod x@(I64# x#) y@(I64# y#)
785 | y == 0 = divZeroError
786 | x == minBound && y == (-1) = overflowError
787 | otherwise = (I64# (x# `divInt#` y#), I64# (x# `modInt#` y#))
788 toInteger (I64# x#) = smallInteger x#
790 instance Read Int64 where
791 readsPrec p s = [(fromIntegral (x::Int), r) | (x, r) <- readsPrec p s]
793 instance Bits Int64 where
796 (I64# x#) .&. (I64# y#) = I64# (word2Int# (int2Word# x# `and#` int2Word# y#))
797 (I64# x#) .|. (I64# y#) = I64# (word2Int# (int2Word# x# `or#` int2Word# y#))
798 (I64# x#) `xor` (I64# y#) = I64# (word2Int# (int2Word# x# `xor#` int2Word# y#))
799 complement (I64# x#) = I64# (word2Int# (int2Word# x# `xor#` int2Word# (-1#)))
800 (I64# x#) `shift` (I# i#)
801 | i# >=# 0# = I64# (x# `iShiftL#` i#)
802 | otherwise = I64# (x# `iShiftRA#` negateInt# i#)
803 (I64# x#) `rotate` (I# i#)
807 = I64# (word2Int# ((x'# `uncheckedShiftL#` i'#) `or#`
808 (x'# `uncheckedShiftRL#` (64# -# i'#))))
811 i'# = word2Int# (int2Word# i# `and#` int2Word# 63#)
816 "fromIntegral/a->Int64" fromIntegral = \x -> case fromIntegral x of I# x# -> I64# x#
817 "fromIntegral/Int64->a" fromIntegral = \(I64# x#) -> fromIntegral (I# x#)
820 uncheckedIShiftL64# = uncheckedIShiftL#
821 uncheckedIShiftRA64# = uncheckedIShiftRA#
824 instance Real Int64 where
825 toRational x = toInteger x % 1
827 instance Bounded Int64 where
828 minBound = -0x8000000000000000
829 maxBound = 0x7FFFFFFFFFFFFFFF
831 instance Ix Int64 where
833 unsafeIndex b@(m,_) i = fromIntegral i - fromIntegral m
834 inRange (m,n) i = m <= i && i <= n