[project @ 1996-07-01 09:16:34 by partain]

[ghc-hetmet.git] / ghc / lib / hbc / Number.hs

diff --git a/ghc/lib/hbc/Number.hs b/ghc/lib/hbc/Number.hs
deleted file mode 100644 (file)
index 01934a7..0000000
--- a/ghc/lib/hbc/Number.hs
+++ /dev/null
@@ -1,124 +0,0 @@
-module Number(Number, isInteger) where
-data Number = I Integer | F Double
-
-toF (I i) = fromInteger i
-toF (F f) = f
-
-toI (I i) = i
-toI (F f) = round f
-
--- slow!!
-toN x | fromInteger i == x = I i where i = truncate x
-toN x = F x
-
-isInteger (I i) = True
-isInteger (F x) = fromInteger (truncate x) == x
-
-instance Eq Number where
-    I x == I y = x == y
-    x   == y   = toF x == toF y
-
-instance Ord Number where
-    I x <= I y = x <= y
-    x   <= y   = toF x <= toF y
-
-instance Text Number where
-    showsPrec p (I i) = showsPrec p i
---    showsPrec p (F f) | fromInteger i == f = showsPrec p i where i = truncate f
-    showsPrec p (F f) = 
-        let s = reverse (show f)
-           s' = if 'e' `notElem` s then dropWhile (=='0') (tail s) else s
-           s'' = if head s' == '.' then tail s' else s'
-       in  showString (reverse s'')
-    readsPrec p s = [(I i, s) | (i, s)<-readsPrec p s] ++
-                    [(F i, s) | (i, s)<-readsPrec p s]
-
-#if defined(__HBC__)
-    showsType _ = showString "Number"
-#endif
-
-instance Num Number where
-    I x + I y  = I (x+y)
-    x   + y    = toN (toF x + toF y)
-    I x - I y  = I (x-y)
-    x   - y    = toN (toF x - toF y)
-    I x * I y  = I (x*y)
-    x   * y    = toN (toF x * toF y)
-    negate (I x) = I (-x)
-    negate (F x) = F (-x)
-    abs x = if x <= 0 then -x else x
-    signum x = if x <= 0 then if x==0 then 0 else -1 else 1
-    fromInteger i = I i
-
-instance Ix Number where
-    range (x, y) = [I i | i<-[toI x .. toI y]]
-    index (x, y) i = fromInteger (toI i - toI x)
-    inRange (x, y) i = toI x <= toI i && toI i <= toI y
-
-instance Integral Number where
-    quotRem (I x) (I y) = case quotRem x y of (q,r) -> (I q, I r)
-    quotRem x y = let q = truncate (x' / y')
-                      x' = toF x
-                     y' = toF y
-                  in  (I q, toN (x' - fromInteger q * y'))
-    toInteger (I i) = i
-    toInteger (F f) = round f
-
-instance Enum Number where
-    enumFrom (I i) = [I x | x<-[i..]]
-    enumFrom (F i) = [F x | x<-[i..]]
-    enumFromThen (I i) (I j) = [I x | x<-[i,j..]]
-    enumFromThen i j = [F x | x<-[toF i,toF j..]]
-
-instance Real Number where
-    toRational (I i) = i % 1
-    toRational (F f) = toRational f
-
-instance Fractional Number where
-    I x / I y | r == 0 = I q where (q,r) = quotRem x y
-    x / y = toN (toF x / toF y)
-    fromRational r | denominator r == 0 = I (numerator r)
-    fromRational r = toN (fromRational r)
-
-instance RealFrac Number where
-    properFraction (I i) = (fromInteger i, I 0)
-    properFraction (F f) = let (i,x) = properFraction f in (i, toN x)
-    truncate (I i) = fromInteger i
-    truncate (F f) = truncate f
-    round (I i) = fromInteger i
-    round (F f) = round f
-    ceiling (I i) = fromInteger i
-    ceiling (F f) = ceiling f
-    floor (I i) = fromInteger i
-    floor (F f) = floor f
-
-instance RealFloat Number where
-    floatRadix x = floatRadix (toF x)
-    floatDigits x = floatDigits (toF x)
-    floatRange x = floatRange (toF x)
-    decodeFloat x = decodeFloat (toF x)
-    encodeFloat m e = toN (encodeFloat m e)
-    exponent x = exponent (toF x)
-    significand x = toN (significand (toF x))
-    scaleFloat n x = toN (scaleFloat n (toF x))
-
-instance Floating Number where
-    pi = F pi
-    exp = toN . exp . toF
-    log = toN . log . toF
-    sqrt = toN . sqrt . toF
-    x ** y = toN (toF x ** toF y)
-    logBase x y = toN (logBase (toF x) (toF y))
-    sin = toN . sin . toF
-    cos = toN . cos . toF
-    tan = toN . tan . toF
-    asin = toN . asin . toF
-    acos = toN . acos . toF
-    atan = toN . atan . toF
-    sinh = toN . sinh . toF
-    cosh = toN . cosh . toF
-    tanh = toN . tanh . toF
-    asinh = toN . asinh . toF
-    acosh = toN . acosh . toF
-    atanh = toN . atanh . toF
-