1 module PreludeBuiltin where
3 --- 4-tuples ------------------------------------------
10 import List ( (++), foldr )
11 import Prel ( (&&), (.) )
12 import PS ( _PackedString, _unpackPS )
15 instance (Eq a, Eq b, Eq c, Eq d) => Eq (a,b,c,d) where
16 (a1,a2,a3,a4) == (b1,b2,b3,b4) = a1 == b1 && a2 == b2 && a3 == b3 && a4 == b4
17 aaaa /= bbbb = if (aaaa == bbbb) then False else True
19 instance (Ord a, Ord b, Ord c, Ord d) => Ord (a,b,c,d) where
20 a < b = case _tagCmp a b of { _LT -> True; _EQ -> False; _GT -> False }
21 a <= b = case _tagCmp a b of { _LT -> True; _EQ -> True; _GT -> False }
22 a >= b = case _tagCmp a b of { _LT -> False; _EQ -> True; _GT -> True }
23 a > b = case _tagCmp a b of { _LT -> False; _EQ -> False; _GT -> True }
25 max a b = case _tagCmp a b of { _LT -> b; _EQ -> a; _GT -> a }
26 min a b = case _tagCmp a b of { _LT -> a; _EQ -> a; _GT -> b }
28 _tagCmp (a1, b1, c1, d1) (a2, b2, c2, d2)
29 = case (_tagCmp a1 a2) of {
32 _EQ -> case _tagCmp b1 b2 of {
35 _EQ -> case _tagCmp c1 c2 of {
43 instance (Ix a1, Ix a2, Ix a3, Ix a4) => Ix (a1,a2,a3,a4) where
44 range ((l1,l2,l3,l4),(u1,u2,u3,u4)) =
45 [(i1,i2,i3,i4) | i1 <- range (l1,u1),
50 index ((l1,l2,l3,l4),(u1,u2,u3,u4)) (i1,i2,i3,i4) =
51 index (l4,u4) i4 + rangeSize (l4,u4) * (
52 index (l3,u3) i3 + rangeSize (l3,u3) * (
53 index (l2,u2) i2 + rangeSize (l2,u2) * (
56 rangeSize (l,u) = index (l,u) u + (1 :: Int)
58 inRange ((l1,l2,l3,l4),(u1,u2,u3,u4)) (i1,i2,i3,i4) =
59 inRange (l1,u1) i1 && inRange (l2,u2) i2 &&
60 inRange (l3,u3) i3 && inRange (l4,u4) i4
62 -- ToDo: something for Binary
64 instance (Text a, Text b, Text c, Text d) => Text (a, b, c, d) where
65 readsPrec p = readParen False
66 (\a -> [((w,x,y,z), j) | ("(",b) <- lex a,
76 showsPrec p (w,x,y,z) = showChar '(' . shows w . showString ", " .
77 shows x . showString ", " .
78 shows y . showString ", " .
79 shows z . showChar ')'
81 #if defined(__UNBOXED_INSTANCES__)
83 -- We only create SPECIALIZED instances unboxed tuples
84 -- which have all the same unboxed component
86 -- {-# SPECIALIZE instance Eq (Char#,Char#,Char#,Char#) #-}
87 -- {-# SPECIALIZE instance Ord (Char#,Char#,Char#,Char#) #-}
88 -- {-# SPECIALIZE instance Ix (Char#,Char#,Char#,Char#) #-}
89 -- {-# SPECIALIZE instance Text (Char#,Char#,Char#,Char#) #-}
91 -- {-# SPECIALIZE instance Eq (Int#,Int#,Int#,Int#) #-}
92 -- {-# SPECIALIZE instance Ord (Int#,Int#,Int#,Int#) #-}
93 -- {-# SPECIALIZE instance Ix (Int#,Int#,Int#,Int#) #-}
94 -- {-# SPECIALIZE instance Text (Int#,Int#,Int#,Int#) #-}
96 -- {-# SPECIALIZE instance Eq (Double#,Double#,Double#,Double#) #-}
97 -- {-# SPECIALIZE instance Ord (Double#,Double#,Double#,Double#) #-}
98 -- {-# SPECIALIZE instance Text (Double#,Double#,Double#,Double#) #-}