2 % (c) The University of Glasgow, 2000
4 \section[Int]{Module @PrelInt@}
7 {-# OPTIONS -monly-3-regs #-}
11 Int8(..), Int16(..), Int32(..), Int64(..)
13 , intToInt8 -- :: Int -> Int8
14 , intToInt16 -- :: Int -> Int16
15 , intToInt32 -- :: Int -> Int32
16 , intToInt64 -- :: Int -> Int64
18 , integerToInt8 -- :: Integer -> Int8
19 , integerToInt16 -- :: Integer -> Int16
20 , integerToInt32 -- :: Integer -> Int32
21 , integerToInt64 -- :: Integer -> Int64
23 , int8ToInt -- :: Int8 -> Int
24 , int8ToInteger -- :: Int8 -> Integer
25 , int8ToInt16 -- :: Int8 -> Int16
26 , int8ToInt32 -- :: Int8 -> Int32
27 , int8ToInt64 -- :: Int8 -> Int64
29 , int16ToInt -- :: Int16 -> Int
30 , int16ToInteger -- :: Int16 -> Integer
31 , int16ToInt8 -- :: Int16 -> Int8
32 , int16ToInt32 -- :: Int16 -> Int32
33 , int16ToInt64 -- :: Int16 -> Int64
35 , int32ToInt -- :: Int32 -> Int
36 , int32ToInteger -- :: Int32 -> Integer
37 , int32ToInt8 -- :: Int32 -> Int8
38 , int32ToInt16 -- :: Int32 -> Int16
39 , int32ToInt64 -- :: Int32 -> Int64
41 , int64ToInt -- :: Int64 -> Int
42 , int64ToInteger -- :: Int64 -> Integer
43 , int64ToInt8 -- :: Int64 -> Int8
44 , int64ToInt16 -- :: Int64 -> Int16
45 , int64ToInt32 -- :: Int64 -> Int32
47 -- The "official" place to get these from is Addr, importing
48 -- them from Int is a non-standard thing to do.
49 -- SUP: deprecated in the new FFI, subsumed by the Storable class
66 , intToInt8#, i8ToInt#, intToInt16#, i16ToInt#, intToInt32#, i32ToInt#,
67 , intToInt64#, plusInt64#, minusInt64#, negateInt64#
79 -- ---------------------------------------------------------------------------
80 -- Coercion functions (DEPRECATED)
81 -- ---------------------------------------------------------------------------
83 intToInt8 :: Int -> Int8
84 intToInt16 :: Int -> Int16
85 intToInt32 :: Int -> Int32
86 intToInt64 :: Int -> Int64
88 integerToInt8 :: Integer -> Int8
89 integerToInt16 :: Integer -> Int16
90 integerToInt32 :: Integer -> Int32
91 integerToInt64 :: Integer -> Int64
93 int8ToInt :: Int8 -> Int
94 int8ToInteger :: Int8 -> Integer
95 int8ToInt16 :: Int8 -> Int16
96 int8ToInt32 :: Int8 -> Int32
97 int8ToInt64 :: Int8 -> Int64
99 int16ToInt :: Int16 -> Int
100 int16ToInteger :: Int16 -> Integer
101 int16ToInt8 :: Int16 -> Int8
102 int16ToInt32 :: Int16 -> Int32
103 int16ToInt64 :: Int16 -> Int64
105 int32ToInt :: Int32 -> Int
106 int32ToInteger :: Int32 -> Integer
107 int32ToInt8 :: Int32 -> Int8
108 int32ToInt16 :: Int32 -> Int16
109 int32ToInt64 :: Int32 -> Int64
111 int64ToInt :: Int64 -> Int
112 int64ToInteger :: Int64 -> Integer
113 int64ToInt8 :: Int64 -> Int8
114 int64ToInt16 :: Int64 -> Int16
115 int64ToInt32 :: Int64 -> Int32
117 integerToInt8 = fromInteger
118 integerToInt16 = fromInteger
119 integerToInt32 = fromInteger
121 int8ToInt16 (I8# x) = I16# x
122 int8ToInt32 (I8# x) = I32# x
124 int16ToInt8 (I16# x) = I8# x
125 int16ToInt32 (I16# x) = I32# x
127 int32ToInt8 (I32# x) = I8# x
128 int32ToInt16 (I32# x) = I16# x
130 int8ToInteger = toInteger
131 int8ToInt64 = int32ToInt64 . int8ToInt32
133 int16ToInteger = toInteger
134 int16ToInt64 = int32ToInt64 . int16ToInt32
136 int32ToInteger = toInteger
138 int64ToInt8 = int32ToInt8 . int64ToInt32
139 int64ToInt16 = int32ToInt16 . int64ToInt32
141 -----------------------------------------------------------------------------
142 -- The following rules for fromIntegral remove the need to export specialized
143 -- conversion functions.
144 -----------------------------------------------------------------------------
147 "fromIntegral/Int->Int8" fromIntegral = intToInt8;
148 "fromIntegral/Int->Int16" fromIntegral = intToInt16;
149 "fromIntegral/Int->Int32" fromIntegral = intToInt32;
150 "fromIntegral/Int->Int64" fromIntegral = intToInt64;
152 "fromIntegral/Integer->Int8" fromIntegral = integerToInt8;
153 "fromIntegral/Integer->Int16" fromIntegral = integerToInt16;
154 "fromIntegral/Integer->Int32" fromIntegral = integerToInt32;
155 "fromIntegral/Integer->Int64" fromIntegral = integerToInt64;
157 "fromIntegral/Int8->Int" fromIntegral = int8ToInt;
158 "fromIntegral/Int8->Integer" fromIntegral = int8ToInteger;
159 "fromIntegral/Int8->Int16" fromIntegral = int8ToInt16;
160 "fromIntegral/Int8->Int32" fromIntegral = int8ToInt32;
161 "fromIntegral/Int8->Int64" fromIntegral = int8ToInt64;
163 "fromIntegral/Int16->Int" fromIntegral = int16ToInt;
164 "fromIntegral/Int16->Integer" fromIntegral = int16ToInteger;
165 "fromIntegral/Int16->Int8" fromIntegral = int16ToInt8;
166 "fromIntegral/Int16->Int32" fromIntegral = int16ToInt32;
167 "fromIntegral/Int16->Int64" fromIntegral = int16ToInt64;
169 "fromIntegral/Int32->Int" fromIntegral = int32ToInt;
170 "fromIntegral/Int32->Integer" fromIntegral = int32ToInteger;
171 "fromIntegral/Int32->Int8" fromIntegral = int32ToInt8;
172 "fromIntegral/Int32->Int16" fromIntegral = int32ToInt16;
173 "fromIntegral/Int32->Int64" fromIntegral = int32ToInt64;
175 "fromIntegral/Int64->Int" fromIntegral = int64ToInt;
176 "fromIntegral/Int64->Integer" fromIntegral = int64ToInteger;
177 "fromIntegral/Int64->Int8" fromIntegral = int64ToInt8;
178 "fromIntegral/Int64->Int16" fromIntegral = int64ToInt16;
179 "fromIntegral/Int64->Int32" fromIntegral = int64ToInt32
182 -- -----------------------------------------------------------------------------
184 -- -----------------------------------------------------------------------------
188 instance CCallable Int8
189 instance CReturnable Int8
191 int8ToInt (I8# x) = I# (i8ToInt# x)
193 i8ToInt# :: Int# -> Int#
194 i8ToInt# x = if x' <=# 0x7f# then x' else x' -# 0x100#
195 where x' = word2Int# (int2Word# x `and#` int2Word# 0xff#)
197 -- This doesn't perform any bounds checking on the value it is passed,
198 -- nor its sign, i.e., show (intToInt8 511) => "-1"
199 intToInt8 (I# x) = I8# (intToInt8# x)
201 intToInt8# :: Int# -> Int#
202 intToInt8# i# = word2Int# ((int2Word# i#) `and#` int2Word# 0xff#)
204 instance Eq Int8 where
205 (I8# x#) == (I8# y#) = x# ==# y#
206 (I8# x#) /= (I8# y#) = x# /=# y#
208 instance Ord Int8 where
209 compare (I8# x#) (I8# y#) = compareInt# (i8ToInt# x#) (i8ToInt# y#)
211 compareInt# :: Int# -> Int# -> Ordering
217 instance Num Int8 where
218 (I8# x#) + (I8# y#) = I8# (intToInt8# (x# +# y#))
219 (I8# x#) - (I8# y#) = I8# (intToInt8# (x# -# y#))
220 (I8# x#) * (I8# y#) = I8# (intToInt8# (x# *# y#))
224 else I8# (0x100# -# x#)
228 fromInteger (S# i#) = I8# (intToInt8# i#)
229 fromInteger (J# s# d#) = I8# (intToInt8# (integer2Int# s# d#))
232 instance Bounded Int8 where
236 instance Real Int8 where
237 toRational x = toInteger x % 1
239 instance Integral Int8 where
241 | x > 0 && y < 0 = quotInt8 (x-y-1) y
242 | x < 0 && y > 0 = quotInt8 (x-y+1) y
243 | otherwise = quotInt8 x y
244 quot x@(I8# _) y@(I8# y#)
245 | y# /=# 0# = x `quotInt8` y
246 | otherwise = divZeroError "quot{Int8}" x
247 rem x@(I8# _) y@(I8# y#)
248 | y# /=# 0# = x `remInt8` y
249 | otherwise = divZeroError "rem{Int8}" x
251 | x > 0 && y < 0 || x < 0 && y > 0 = if r/=0 then r+y else 0
253 where r = remInt8 x y
255 a@(I8# _) `quotRem` b@(I8# _) = (a `quotInt8` b, a `remInt8` b)
256 toInteger i8 = toInteger (int8ToInt i8)
257 toInt i8 = int8ToInt i8
260 remInt8, quotInt8 :: Int8 -> Int8 -> Int8
261 remInt8 (I8# x) (I8# y) = I8# (intToInt8# ((i8ToInt# x) `remInt#` (i8ToInt# y)))
262 quotInt8 (I8# x) (I8# y) = I8# (intToInt8# ((i8ToInt# x) `quotInt#` (i8ToInt# y)))
264 instance Ix Int8 where
267 | inRange b i = int8ToInt (i - m)
268 | otherwise = indexError b i "Int8"
269 inRange (m,n) i = m <= i && i <= n
271 instance Enum Int8 where
273 | i == maxBound = succError "Int8"
276 | i == minBound = predError "Int8"
280 | x >= toInt (minBound::Int8) && x <= toInt (maxBound::Int8)
283 = toEnumError "Int8" x (minBound::Int8,maxBound::Int8)
286 enumFrom e1 = map toEnum [fromEnum e1 .. fromEnum (maxBound::Int8)]
288 map toEnum [fromEnum e1, fromEnum e2 .. fromEnum (last::Int8)]
292 | otherwise = maxBound
294 instance Read Int8 where
295 readsPrec p s = [ (intToInt8 x,r) | (x,r) <- readsPrec p s ]
297 instance Show Int8 where
298 showsPrec p i8 = showsPrec p (int8ToInt i8)
300 -- -----------------------------------------------------------------------------
302 -- -----------------------------------------------------------------------------
304 data Int16 = I16# Int#
306 instance CCallable Int16
307 instance CReturnable Int16
309 int16ToInt (I16# x) = I# (i16ToInt# x)
311 i16ToInt# :: Int# -> Int#
312 i16ToInt# x = if x' <=# 0x7fff# then x' else x' -# 0x10000#
313 where x' = word2Int# (int2Word# x `and#` int2Word# 0xffff#)
315 -- This doesn't perform any bounds checking on the value it is passed,
316 -- nor its sign, i.e., show (intToInt8 131071) => "-1"
317 intToInt16 (I# x) = I16# (intToInt16# x)
319 intToInt16# :: Int# -> Int#
320 intToInt16# i# = word2Int# ((int2Word# i#) `and#` int2Word# 0xffff#)
322 instance Eq Int16 where
323 (I16# x#) == (I16# y#) = x# ==# y#
324 (I16# x#) /= (I16# y#) = x# /=# y#
326 instance Ord Int16 where
327 compare (I16# x#) (I16# y#) = compareInt# (i16ToInt# x#) (i16ToInt# y#)
329 instance Num Int16 where
330 (I16# x#) + (I16# y#) = I16# (intToInt16# (x# +# y#))
331 (I16# x#) - (I16# y#) = I16# (intToInt16# (x# -# y#))
332 (I16# x#) * (I16# y#) = I16# (intToInt16# (x# *# y#))
336 else I16# (0x10000# -# x#)
339 fromInteger (S# i#) = I16# (intToInt16# i#)
340 fromInteger (J# s# d#) = I16# (intToInt16# (integer2Int# s# d#))
343 instance Bounded Int16 where
347 instance Real Int16 where
348 toRational x = toInteger x % 1
350 instance Integral Int16 where
352 | x > 0 && y < 0 = quotInt16 (x-y-1) y
353 | x < 0 && y > 0 = quotInt16 (x-y+1) y
354 | otherwise = quotInt16 x y
355 quot x@(I16# _) y@(I16# y#)
356 | y# /=# 0# = x `quotInt16` y
357 | otherwise = divZeroError "quot{Int16}" x
358 rem x@(I16# _) y@(I16# y#)
359 | y# /=# 0# = x `remInt16` y
360 | otherwise = divZeroError "rem{Int16}" x
362 | x > 0 && y < 0 || x < 0 && y > 0 = if r/=0 then r+y else 0
364 where r = remInt16 x y
366 a@(I16# _) `quotRem` b@(I16# _) = (a `quotInt16` b, a `remInt16` b)
367 toInteger i16 = toInteger (int16ToInt i16)
368 toInt i16 = int16ToInt i16
370 remInt16, quotInt16 :: Int16 -> Int16 -> Int16
371 remInt16 (I16# x) (I16# y) = I16# (intToInt16# ((i16ToInt# x) `remInt#` (i16ToInt# y)))
372 quotInt16 (I16# x) (I16# y) = I16# (intToInt16# ((i16ToInt# x) `quotInt#` (i16ToInt# y)))
374 instance Ix Int16 where
377 | inRange b i = int16ToInt (i - m)
378 | otherwise = indexError b i "Int16"
379 inRange (m,n) i = m <= i && i <= n
381 instance Enum Int16 where
383 | i == maxBound = succError "Int16"
387 | i == minBound = predError "Int16"
391 | x >= toInt (minBound::Int16) && x <= toInt (maxBound::Int16)
394 = toEnumError "Int16" x (minBound::Int16, maxBound::Int16)
396 fromEnum = int16ToInt
398 enumFrom e1 = map toEnum [fromEnum e1 .. fromEnum (maxBound::Int16)]
399 enumFromThen e1 e2 = map toEnum [fromEnum e1, fromEnum e2 .. fromEnum (last::Int16)]
402 | otherwise = maxBound
404 instance Read Int16 where
405 readsPrec p s = [ (intToInt16 x,r) | (x,r) <- readsPrec p s ]
407 instance Show Int16 where
408 showsPrec p i16 = showsPrec p (int16ToInt i16)
410 -- -----------------------------------------------------------------------------
412 -- -----------------------------------------------------------------------------
414 data Int32 = I32# Int#
416 instance CCallable Int32
417 instance CReturnable Int32
419 int32ToInt (I32# x) = I# (i32ToInt# x)
421 i32ToInt# :: Int# -> Int#
422 #if WORD_SIZE_IN_BYTES > 4
423 i32ToInt# x = if x' <=# 0x7fffffff# then x' else x' -# 0x100000000#
424 where x' = word2Int# (int2Word# x `and#` int2Word# 0xffffffff#)
429 intToInt32 (I# x) = I32# (intToInt32# x)
431 intToInt32# :: Int# -> Int#
432 #if WORD_SIZE_IN_BYTES > 4
433 intToInt32# i# = word2Int# ((int2Word# i#) `and#` int2Word# 0xffffffff#)
438 instance Eq Int32 where
439 (I32# x#) == (I32# y#) = x# ==# y#
440 (I32# x#) /= (I32# y#) = x# /=# y#
442 instance Ord Int32 where
443 compare (I32# x#) (I32# y#) = compareInt# (i32ToInt# x#) (i32ToInt# y#)
445 instance Num Int32 where
446 (I32# x#) + (I32# y#) = I32# (intToInt32# (x# +# y#))
447 (I32# x#) - (I32# y#) = I32# (intToInt32# (x# -# y#))
448 (I32# x#) * (I32# y#) = I32# (intToInt32# (x# *# y#))
449 #if WORD_SIZE_IN_BYTES > 4
453 else I32# (intToInt32# (0x100000000# -# x'))
455 negate (I32# x) = I32# (negateInt# x)
459 fromInteger (S# i#) = I32# (intToInt32# i#)
460 fromInteger (J# s# d#) = I32# (intToInt32# (integer2Int# s# d#))
464 instance Bounded Int32 where
465 minBound = fromInt minBound
466 maxBound = fromInt maxBound
468 instance Real Int32 where
469 toRational x = toInteger x % 1
471 instance Integral Int32 where
473 | x > 0 && y < 0 = quotInt32 (x-y-1) y
474 | x < 0 && y > 0 = quotInt32 (x-y+1) y
475 | otherwise = quotInt32 x y
476 quot x@(I32# _) y@(I32# y#)
477 | y# /=# 0# = x `quotInt32` y
478 | otherwise = divZeroError "quot{Int32}" x
479 rem x@(I32# _) y@(I32# y#)
480 | y# /=# 0# = x `remInt32` y
481 | otherwise = divZeroError "rem{Int32}" x
483 | x > 0 && y < 0 || x < 0 && y > 0 = if r/=0 then r+y else 0
485 where r = remInt32 x y
487 a@(I32# _) `quotRem` b@(I32# _) = (a `quotInt32` b, a `remInt32` b)
488 toInteger i32 = toInteger (int32ToInt i32)
489 toInt i32 = int32ToInt i32
491 remInt32, quotInt32 :: Int32 -> Int32 -> Int32
492 remInt32 (I32# x) (I32# y) = I32# (intToInt32# ((i32ToInt# x) `remInt#` (i32ToInt# y)))
493 quotInt32 (I32# x) (I32# y) = I32# (intToInt32# ((i32ToInt# x) `quotInt#` (i32ToInt# y)))
495 instance Ix Int32 where
498 | inRange b i = int32ToInt (i - m)
499 | otherwise = indexError b i "Int32"
500 inRange (m,n) i = m <= i && i <= n
502 instance Enum Int32 where
504 | i == maxBound = succError "Int32"
508 | i == minBound = predError "Int32"
512 -- with Int having the same range as Int32, the following test
513 -- shouldn't fail. However, having it here
514 | x >= toInt (minBound::Int32) && x <= toInt (maxBound::Int32)
517 = toEnumError "Int32" x (minBound::Int32, maxBound::Int32)
519 fromEnum = int32ToInt
521 enumFrom e1 = map toEnum [fromEnum e1 .. fromEnum (maxBound::Int32)]
522 enumFromThen e1 e2 = map toEnum [fromEnum e1, fromEnum e2 .. fromEnum (last::Int32)]
526 | otherwise = maxBound
529 instance Read Int32 where
530 readsPrec p s = [ (intToInt32 x,r) | (x,r) <- readsPrec p s ]
532 instance Show Int32 where
533 showsPrec p i32 = showsPrec p (int32ToInt i32)
535 -- -----------------------------------------------------------------------------
537 -- -----------------------------------------------------------------------------
539 #if WORD_SIZE_IN_BYTES == 8
541 --data Int64 = I64# Int#
543 int32ToInt64 (I32# i#) = I64# i#
545 intToInt32# :: Int# -> Int#
546 intToInt32# i# = word2Int# ((int2Word# i#) `and#` (case (maxBound::Word32) of W# x# -> x#))
548 int64ToInt32 (I64# i#) = I32# (intToInt32# w#)
550 instance Eq Int64 where
551 (I64# x) == (I64# y) = x `eqInt#` y
552 (I64# x) /= (I64# y) = x `neInt#` y
554 instance Ord Int32 where
555 compare (I64# x#) (I64# y#) = compareInt# x# y#
557 instance Num Int64 where
558 (I64# x) + (I64# y) = I64# (x +# y)
559 (I64# x) - (I64# y) = I64# (x -# y)
560 (I64# x) * (I64# y) = I64# (x *# y)
561 negate w@(I64# x) = I64# (negateInt# x)
564 fromInteger (S# i#) = I64# i#
565 fromInteger (J# s# d#) = I64# (integer2Int# s# d#)
568 instance Bounded Int64 where
569 minBound = integerToInt64 (-0x8000000000000000)
570 maxBound = integerToInt64 0x7fffffffffffffff
572 instance Integral Int64 where
574 | x > 0 && y < 0 = quotInt64 (x-y-1) y
575 | x < 0 && y > 0 = quotInt64 (x-y+1) y
576 | otherwise = quotInt64 x y
578 quot x@(I64# _) y@(I64# y#)
579 | y# /=# 0# = x `quotInt64` y
580 | otherwise = divZeroError "quot{Int64}" x
582 rem x@(I64# _) y@(I64# y#)
583 | y# /=# 0# = x `remInt64` y
584 | otherwise = divZeroError "rem{Int64}" x
587 | x > 0 && y < 0 || x < 0 && y > 0 = if r/=0 then r+y else 0
589 where r = remInt64 x y
591 a@(I64# _) `quotRem` b@(I64# _) = (a `quotInt64` b, a `remInt64` b)
592 toInteger (I64# i#) = toInteger (I# i#)
593 toInt (I64# i#) = I# i#
595 remInt64 (I64# x) (I64# y) = I64# (x `remInt#` y)
596 quotInt64 (I64# x) (I64# y) = I64# (x `quotInt#` y)
598 int64ToInteger (I64# i#) = toInteger (I# i#)
599 integerToInt64 i = case fromInteger i of { I# i# -> I64# i# }
601 intToInt64 (I# i#) = I64# i#
602 int64ToInt (I64# i#) = I# i#
605 --assume: support for long-longs
606 --data Int64 = I64 Int64# deriving (Eq, Ord, Bounded)
608 int32ToInt64 (I32# i#) = I64# (intToInt64# i#)
609 int64ToInt32 (I64# i#) = I32# (int64ToInt# i#)
611 int64ToInteger (I64# x#) =
612 case int64ToInteger# x# of
613 (# s#, p# #) -> J# s# p#
615 integerToInt64 (S# i#) = I64# (intToInt64# i#)
616 integerToInt64 (J# s# d#) = I64# (integerToInt64# s# d#)
618 instance Eq Int64 where
619 (I64# x) == (I64# y) = x `eqInt64#` y
620 (I64# x) /= (I64# y) = x `neInt64#` y
622 instance Ord Int64 where
623 compare (I64# x) (I64# y) = compareInt64# x y
624 (<) (I64# x) (I64# y) = x `ltInt64#` y
625 (<=) (I64# x) (I64# y) = x `leInt64#` y
626 (>=) (I64# x) (I64# y) = x `geInt64#` y
627 (>) (I64# x) (I64# y) = x `gtInt64#` y
628 max x@(I64# x#) y@(I64# y#) =
629 case (compareInt64# x# y#) of { LT -> y ; EQ -> x ; GT -> x }
630 min x@(I64# x#) y@(I64# y#) =
631 case (compareInt64# x# y#) of { LT -> x ; EQ -> x ; GT -> y }
633 instance Num Int64 where
634 (I64# x) + (I64# y) = I64# (x `plusInt64#` y)
635 (I64# x) - (I64# y) = I64# (x `minusInt64#` y)
636 (I64# x) * (I64# y) = I64# (x `timesInt64#` y)
637 negate (I64# x) = I64# (negateInt64# x)
640 fromInteger i = integerToInt64 i
641 fromInt i = intToInt64 i
643 compareInt64# :: Int64# -> Int64# -> Ordering
645 | i# `ltInt64#` j# = LT
646 | i# `eqInt64#` j# = EQ
649 instance Bounded Int64 where
650 minBound = integerToInt64 (-0x8000000000000000)
651 maxBound = integerToInt64 0x7fffffffffffffff
653 instance Integral Int64 where
655 | x > 0 && y < 0 = quotInt64 (x-y-1) y
656 | x < 0 && y > 0 = quotInt64 (x-y+1) y
657 | otherwise = quotInt64 x y
659 quot x@(I64# _) y@(I64# y#)
660 | y# `neInt64#` (intToInt64# 0#) = x `quotInt64` y
661 | otherwise = divZeroError "quot{Int64}" x
663 rem x@(I64# _) y@(I64# y#)
664 | y# `neInt64#` (intToInt64# 0#) = x `remInt64` y
665 | otherwise = divZeroError "rem{Int64}" x
668 | x > 0 && y < 0 || x < 0 && y > 0 = if r/=0 then r+y else 0
670 where r = remInt64 x y
672 a@(I64# _) `quotRem` b@(I64# _) = (a `quotInt64` b, a `remInt64` b)
673 toInteger i = int64ToInteger i
674 toInt i = int64ToInt i
676 remInt64, quotInt64 :: Int64 -> Int64 -> Int64
677 remInt64 (I64# x) (I64# y) = I64# (x `remInt64#` y)
678 quotInt64 (I64# x) (I64# y) = I64# (x `quotInt64#` y)
680 intToInt64 (I# i#) = I64# (intToInt64# i#)
681 int64ToInt (I64# i#) = I# (int64ToInt# i#)
683 -- Word64# primop wrappers:
685 ltInt64# :: Int64# -> Int64# -> Bool
686 ltInt64# x# y# = stg_ltInt64 x# y# /= 0
688 leInt64# :: Int64# -> Int64# -> Bool
689 leInt64# x# y# = stg_leInt64 x# y# /= 0
691 eqInt64# :: Int64# -> Int64# -> Bool
692 eqInt64# x# y# = stg_eqInt64 x# y# /= 0
694 neInt64# :: Int64# -> Int64# -> Bool
695 neInt64# x# y# = stg_neInt64 x# y# /= 0
697 geInt64# :: Int64# -> Int64# -> Bool
698 geInt64# x# y# = stg_geInt64 x# y# /= 0
700 gtInt64# :: Int64# -> Int64# -> Bool
701 gtInt64# x# y# = stg_gtInt64 x# y# /= 0
703 plusInt64# :: Int64# -> Int64# -> Int64#
704 plusInt64# a# b# = case stg_plusInt64 a# b# of { I64# i# -> i# }
706 minusInt64# :: Int64# -> Int64# -> Int64#
707 minusInt64# a# b# = case stg_minusInt64 a# b# of { I64# i# -> i# }
709 timesInt64# :: Int64# -> Int64# -> Int64#
710 timesInt64# a# b# = case stg_timesInt64 a# b# of { I64# i# -> i# }
712 quotInt64# :: Int64# -> Int64# -> Int64#
713 quotInt64# a# b# = case stg_quotInt64 a# b# of { I64# i# -> i# }
715 remInt64# :: Int64# -> Int64# -> Int64#
716 remInt64# a# b# = case stg_remInt64 a# b# of { I64# i# -> i# }
718 negateInt64# :: Int64# -> Int64#
719 negateInt64# a# = case stg_negateInt64 a# of { I64# i# -> i# }
721 int64ToInt# :: Int64# -> Int#
722 int64ToInt# i64# = case stg_int64ToInt i64# of { I# i# -> i# }
724 intToInt64# :: Int# -> Int64#
725 intToInt64# i# = case stg_intToInt64 i# of { I64# i64# -> i64# }
727 foreign import "stg_intToInt64" unsafe stg_intToInt64 :: Int# -> Int64
728 foreign import "stg_int64ToInt" unsafe stg_int64ToInt :: Int64# -> Int
729 foreign import "stg_negateInt64" unsafe stg_negateInt64 :: Int64# -> Int64
730 foreign import "stg_remInt64" unsafe stg_remInt64 :: Int64# -> Int64# -> Int64
731 foreign import "stg_quotInt64" unsafe stg_quotInt64 :: Int64# -> Int64# -> Int64
732 foreign import "stg_timesInt64" unsafe stg_timesInt64 :: Int64# -> Int64# -> Int64
733 foreign import "stg_minusInt64" unsafe stg_minusInt64 :: Int64# -> Int64# -> Int64
734 foreign import "stg_plusInt64" unsafe stg_plusInt64 :: Int64# -> Int64# -> Int64
735 foreign import "stg_gtInt64" unsafe stg_gtInt64 :: Int64# -> Int64# -> Int
736 foreign import "stg_geInt64" unsafe stg_geInt64 :: Int64# -> Int64# -> Int
737 foreign import "stg_neInt64" unsafe stg_neInt64 :: Int64# -> Int64# -> Int
738 foreign import "stg_eqInt64" unsafe stg_eqInt64 :: Int64# -> Int64# -> Int
739 foreign import "stg_leInt64" unsafe stg_leInt64 :: Int64# -> Int64# -> Int
740 foreign import "stg_ltInt64" unsafe stg_ltInt64 :: Int64# -> Int64# -> Int
745 -- Code that's independent of Int64 rep.
747 instance Enum Int64 where
749 | i == maxBound = succError "Int64"
753 | i == minBound = predError "Int64"
756 toEnum i = intToInt64 i
758 | x >= intToInt64 (minBound::Int) && x <= intToInt64 (maxBound::Int)
761 = fromEnumError "Int64" x
763 enumFrom e1 = map integerToInt64 [int64ToInteger e1 .. int64ToInteger (maxBound::Int64)]
764 enumFromTo e1 e2 = map integerToInt64 [int64ToInteger e1 .. int64ToInteger e2]
765 enumFromThen e1 e2 = map integerToInt64 [int64ToInteger e1, int64ToInteger e2 .. int64ToInteger last]
770 | otherwise = maxBound
772 enumFromThenTo e1 e2 e3 = map integerToInt64 [int64ToInteger e1, int64ToInteger e2 .. int64ToInteger e3]
774 instance Show Int64 where
775 showsPrec p i64 = showsPrec p (int64ToInteger i64)
777 instance Read Int64 where
778 readsPrec _ s = [ (integerToInt64 x,r) | (x,r) <- readDec s ]
780 instance Ix Int64 where
783 | inRange b i = int64ToInt (i-m)
784 | otherwise = indexError b i "Int64"
785 inRange (m,n) i = m <= i && i <= n
787 instance Real Int64 where
788 toRational x = toInteger x % 1
790 -- ---------------------------------------------------------------------------
791 -- Reading/writing Ints from memory
792 -- ---------------------------------------------------------------------------
794 indexInt8OffAddr :: Addr -> Int -> Int8
795 indexInt8OffAddr (A# a#) (I# i#) = I8# (indexInt8OffAddr# a# i#)
797 indexInt16OffAddr :: Addr -> Int -> Int16
798 indexInt16OffAddr (A# a#) (I# i#) = I16# (indexInt16OffAddr# a# i#)
800 indexInt32OffAddr :: Addr -> Int -> Int32
801 indexInt32OffAddr (A# a#) (I# i#) = I32# (indexInt32OffAddr# a# i#)
803 indexInt64OffAddr :: Addr -> Int -> Int64
804 #if WORD_SIZE_IN_BYTES==8
805 indexInt64OffAddr (A# a#) (I# i#) = I64# (indexIntOffAddr# a# i#)
807 indexInt64OffAddr (A# a#) (I# i#) = I64# (indexInt64OffAddr# a# i#)
811 readInt8OffAddr :: Addr -> Int -> IO Int8
812 readInt8OffAddr (A# a) (I# i)
813 = IO $ \s -> case readInt8OffAddr# a i s of (# s, w #) -> (# s, I8# w #)
815 readInt16OffAddr :: Addr -> Int -> IO Int16
816 readInt16OffAddr (A# a) (I# i)
817 = IO $ \s -> case readInt16OffAddr# a i s of (# s, w #) -> (# s, I16# w #)
819 readInt32OffAddr :: Addr -> Int -> IO Int32
820 readInt32OffAddr (A# a) (I# i)
821 = IO $ \s -> case readInt32OffAddr# a i s of (# s, w #) -> (# s, I32# w #)
823 readInt64OffAddr :: Addr -> Int -> IO Int64
824 #if WORD_SIZE_IN_BYTES == 8
825 readInt64OffAddr (A# a) (I# i)
826 = IO $ \s -> case readIntOffAddr# a i s of (# s, w #) -> (# s, I64# w #)
828 readInt64OffAddr (A# a) (I# i)
829 = IO $ \s -> case readInt64OffAddr# a i s of (# s, w #) -> (# s, I64# w #)
833 writeInt8OffAddr :: Addr -> Int -> Int8 -> IO ()
834 writeInt8OffAddr (A# a#) (I# i#) (I8# w#) = IO $ \ s# ->
835 case (writeInt8OffAddr# a# i# w# s#) of s2# -> (# s2#, () #)
837 writeInt16OffAddr :: Addr -> Int -> Int16 -> IO ()
838 writeInt16OffAddr (A# a#) (I# i#) (I16# w#) = IO $ \ s# ->
839 case (writeInt16OffAddr# a# i# w# s#) of s2# -> (# s2#, () #)
841 writeInt32OffAddr :: Addr -> Int -> Int32 -> IO ()
842 writeInt32OffAddr (A# a#) (I# i#) (I32# w#) = IO $ \ s# ->
843 case (writeInt32OffAddr# a# i# w# s#) of s2# -> (# s2#, () #)
845 writeInt64OffAddr :: Addr -> Int -> Int64 -> IO ()
846 #if WORD_SIZE_IN_BYTES == 8
847 writeInt64OffAddr (A# a#) (I# i#) (I64# w#) = IO $ \ s# ->
848 case (writeIntOffAddr# a# i# w# s#) of s2# -> (# s2#, () #)
850 writeInt64OffAddr (A# a#) (I# i#) (I64# w#) = IO $ \ s# ->
851 case (writeInt64OffAddr# a# i# w# s#) of s2# -> (# s2#, () #)
855 Miscellaneous Utilities
858 absReal :: (Ord a, Num a) => a -> a
859 absReal x | x >= 0 = x
862 signumReal :: (Ord a, Num a) => a -> a
863 signumReal x | x == 0 = 0