[project @ 2001-11-06 11:04:16 by simonmar]

[ghc-hetmet.git] / ghc / lib / std / Complex.lhs

diff --git a/ghc/lib/std/Complex.lhs b/ghc/lib/std/Complex.lhs
index eca2738..b7849d2 100644 (file)
--- a/ghc/lib/std/Complex.lhs
+++ b/ghc/lib/std/Complex.lhs
@@ -1,5 +1,7 @@
+% -----------------------------------------------------------------------------
+% $Id: Complex.lhs,v 1.7 2001/09/19 14:06:03 simonmar Exp $
 %
-% (c) The AQUA Project, Glasgow University, 1994-1999
+% (c) The University of Glasgow, 1994-2000
 %
 
 \section[Complex]{Module @Complex@}
@@ -57,24 +59,30 @@ realPart, imagPart :: (RealFloat a) => Complex a -> a
 realPart (x :+ _) =  x
 imagPart (_ :+ y) =  y
 
+{-# SPECIALISE conjugate :: Complex Double -> Complex Double #-}
 conjugate       :: (RealFloat a) => Complex a -> Complex a
 conjugate (x:+y) =  x :+ (-y)
 
+{-# SPECIALISE mkPolar :: Double -> Double -> Complex Double #-}
 mkPolar                 :: (RealFloat a) => a -> a -> Complex a
 mkPolar r theta         =  r * cos theta :+ r * sin theta
 
+{-# SPECIALISE cis :: Double -> Complex Double #-}
 cis             :: (RealFloat a) => a -> Complex a
 cis theta       =  cos theta :+ sin theta
 
+{-# SPECIALISE polar :: Complex Double -> (Double,Double) #-}
 polar           :: (RealFloat a) => Complex a -> (a,a)
 polar z                 =  (magnitude z, phase z)
 
+{-# SPECIALISE magnitude :: Complex Double -> Double #-}
 magnitude :: (RealFloat a) => Complex a -> a
 magnitude (x:+y) =  scaleFloat k
                     (sqrt ((scaleFloat mk x)^(2::Int) + (scaleFloat mk y)^(2::Int)))
                    where k  = max (exponent x) (exponent y)
                          mk = - k
 
+{-# SPECIALISE phase :: Complex Double -> Double #-}
 phase :: (RealFloat a) => Complex a -> a
 phase (0 :+ 0)   = 0           -- SLPJ July 97 from John Peterson
 phase (x:+y)    = atan2 y x