% ------------------------------------------------------------------------------
-% $Id: Random.lhs,v 1.23 2001/02/22 16:48:24 qrczak Exp $
+% $Id: Random.lhs,v 1.24 2001/02/28 00:01:03 qrczak Exp $
%
% (c) The University of Glasgow, 1995-2000
%
import PrelRead ( readDec )
import PrelIOBase ( unsafePerformIO, stToIO )
import PrelArr ( STRef, newSTRef, readSTRef, writeSTRef )
-import PrelFloat ( float2Double, double2Float )
import Time ( getClockTime, ClockTime(..) )
#else
import PrelPrim ( IORef
random g = randomR (0::Double,1) g
-- hah, so you thought you were saving cycles by using Float?
-
-#ifdef __HUGS__
instance Random Float where
random g = randomIvalDouble (0::Double,1) realToFrac g
randomR (a,b) g = randomIvalDouble (realToFrac a, realToFrac b) realToFrac g
-#else
-instance Random Float where
- randomR (a,b) g = randomIvalDouble (float2Double a, float2Double b) double2Float g
- random g = randomIvalDouble (0::Double,1) double2Float g
-#endif
-
\end{code}