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| author | Taylor Fausak <taylor@fausak.me> | 2018-05-22 09:29:43 -0400 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2018-05-29 16:37:58 -0400 |
| commit | 576078a8a126f24c3dfdd16e2b6d1db50dd9050f (patch) | |
| tree | 8af050b8d5d36bc95a8a68ebf47b8f23e6e5cf56 /libraries/base/GHC/List.hs | |
| parent | 9969863adbd8f467d029254b5520c3340dacd980 (diff) | |
| download | haskell-576078a8a126f24c3dfdd16e2b6d1db50dd9050f.tar.gz | |
base: Improve zip documentation
Diffstat (limited to 'libraries/base/GHC/List.hs')
| -rw-r--r-- | libraries/base/GHC/List.hs | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/libraries/base/GHC/List.hs b/libraries/base/GHC/List.hs index af502134a7..793ff499e8 100644 --- a/libraries/base/GHC/List.hs +++ b/libraries/base/GHC/List.hs @@ -947,12 +947,19 @@ foldr2_left k _z x r (y:ys) = k x y (r ys) ---------------------------------------------- -- | 'zip' takes two lists and returns a list of corresponding pairs. +-- +-- > zip [1, 2] ['a', 'b'] = [(1, 'a'), (2, 'b')] +-- -- If one input list is short, excess elements of the longer list are --- discarded. +-- discarded: +-- +-- > zip [1] ['a', 'b'] = [(1, 'a')] +-- > zip [1, 2] ['a'] = [(1, 'a')] -- -- 'zip' is right-lazy: -- -- > zip [] _|_ = [] +-- > zip _|_ [] = _|_ {-# NOINLINE [1] zip #-} zip :: [a] -> [b] -> [(a,b)] zip [] _bs = [] |