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| author |  Alexander Abushkevich <alex@abushkevi.ch> | 2016-02-24 15:14:13 +1300 |
|---|---|---|
| committer | Alexander Abushkevich <alex@abushkevi.ch> | 2016-02-24 15:14:13 +1300 |
| commit | 026e50ceaad69147ae05386ea342861d18021cd5 (patch) | |
| tree | 295d7275e3a220c2beb03faa22fdb8959907700b /lib/ur/list.ur | |
| parent | 746e16d83aaf284f996bcc6d61f0d9ba99c099b2 (diff) | |
Return lists in their original order in span function
Diffstat (limited to 'lib/ur/list.ur')
| -rw-r--r-- | lib/ur/list.ur | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/ur/list.ur b/lib/ur/list.ur index f3bb0587..eac5ab0c 100644 --- a/lib/ur/list.ur +++ b/lib/ur/list.ur @@ -439,8 +439,8 @@ fun span [a] (f:(a -> bool)) (ls:list a) : list a * list a = let fun span' f acc ls = case ls of - [] => (acc, []) - | x :: xs => if (f x) then span' f (x :: acc) xs else (acc, ls) + [] => (rev acc, []) + | x :: xs => if (f x) then span' f (x :: acc) xs else (rev acc, ls) in span' f [] ls end |