[project @ 2005-03-15 13:38:27 by simonmar]

[ghc-base.git] / Data / Tuple.hs

diff --git a/Data/Tuple.hs b/Data/Tuple.hs
index ea7191a..a149585 100644 (file)
--- a/Data/Tuple.hs
+++ b/Data/Tuple.hs
@@ -1,4 +1,4 @@
-{-# OPTIONS -fno-implicit-prelude #-}
+{-# OPTIONS_GHC -fno-implicit-prelude #-}
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Data.Tuple
@@ -258,17 +258,19 @@ data (,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
 -- Standard functions over tuples
 
 #if !defined(__HUGS__) && !defined(__NHC__)
+-- | Extract the first component of a pair.
 fst                    :: (a,b) -> a
 fst (x,_)              =  x
 
+-- | Extract the second component of a pair.
 snd                    :: (a,b) -> b
 snd (_,y)              =  y
 
--- curry converts an uncurried function to a curried function;
--- uncurry converts a curried function to a function on pairs.
+-- | 'curry' converts an uncurried function to a curried function.
 curry                   :: ((a, b) -> c) -> a -> b -> c
 curry f x y             =  f (x, y)
 
+-- | 'uncurry' converts a curried function to a function on pairs.
 uncurry                 :: (a -> b -> c) -> ((a, b) -> c)
 uncurry f p             =  f (fst p) (snd p)
 #endif  /* neither __HUGS__ nor __NHC__ */