diff options
Diffstat (limited to 'libraries/base/Data/Function.hs')
| -rw-r--r-- | libraries/base/Data/Function.hs | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/libraries/base/Data/Function.hs b/libraries/base/Data/Function.hs index c54e81facc..7a77160a60 100644 --- a/libraries/base/Data/Function.hs +++ b/libraries/base/Data/Function.hs @@ -45,16 +45,18 @@ infixl 1 & -- 120 -- -- Instead of making a recursive call, we introduce a dummy parameter @rec@; --- when used within 'fix', this parameter then refers to 'fix'' argument, hence +-- when used within 'fix', this parameter then refers to 'fix' argument, hence -- the recursion is reintroduced. fix :: (a -> a) -> a fix f = let x = f x in x --- | @'on' b u x y@ runs the binary function `b` /on/ the results of applying unary function `u` to two arguments `x` and `y`. From the opposite perspective, it transforms two inputs and combines the outputs. +-- | @'on' b u x y@ runs the binary function @b@ /on/ the results of applying +-- unary function @u@ to two arguments @x@ and @y@. From the opposite +-- perspective, it transforms two inputs and combines the outputs. -- -- @((+) \``on`\` f) x y = f x + f y@ -- --- Typical usage: @'Data.List.sortBy' ('compare' \`on\` 'fst')@. +-- Typical usage: @'Data.List.sortBy' ('Prelude.compare' \`on\` 'Prelude.fst')@. -- -- Algebraic properties: -- |