[project @ 2003-06-05 00:49:31 by diatchki]

[ghc-base.git] / System / Random.hs

diff --git a/System/Random.hs b/System/Random.hs
index 129e5a9..b284b42 100644 (file)
--- a/System/Random.hs
+++ b/System/Random.hs
@@ -46,6 +46,7 @@ import Prelude
 
 #ifdef __NHC__
 import CPUTime         ( getCPUTime )
+import Foreign.Ptr      ( Ptr, nullPtr )
 #else
 import System.CPUTime  ( getCPUTime )
 import System.Time     ( getClockTime, ClockTime(..) )
@@ -64,14 +65,14 @@ import GHC.IOBase   ( stToIO )
 -- replacement here.
 #ifdef __NHC__
 data ClockTime = TOD Integer ()
-foreign import ccall "time.h time" readtime :: Int -> IO Int
+foreign import ccall "time.h time" readtime :: Ptr () -> IO Int
 getClockTime :: IO ClockTime
-getClockTime = do t <- readtime 0;  return (TOD (toInteger t) ())
+getClockTime = do t <- readtime nullPtr;  return (TOD (toInteger t) ())
 #endif
 
 {- $intro
 
-The "Random" library deals with the common task of pseudo-random
+This library deals with the common task of pseudo-random
 number generation. The library makes it possible to generate
 repeatable results, by starting with a specified initial random
 number generator; or to get different results on each run by using the 
@@ -120,8 +121,8 @@ class RandomGen g where
    -- default mathod
    genRange g = (minBound,maxBound)
 
-{- |The "Random" library provides one instance of 'RandomGen', the abstract data
-type 'StdGen'.
+{- |The "System.Random" library provides one instance of 'RandomGen', the
+abstract data type 'StdGen'.
 
 The result of repeatedly using next should be at least as statistically robust
 as the /Minimal Standard Random Number Generator/ described by