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Use builtins.partition if available

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This commit is contained in:
Eelco Dolstra 2016-08-29 17:25:33 +02:00
parent 67c57a9ce5
commit 822e1ddd89
1 changed files with 2 additions and 2 deletions
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4
lib/lists.nix
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@ -218,12 +218,12 @@ rec {
partition (x: x > 2) [ 5 1 2 3 4 ]
=> { right = [ 5 3 4 ]; wrong = [ 1 2 ]; }
*/
partition = pred:
partition = builtins.partition or (pred:
fold (h: t:
if pred h
then { right = [h] ++ t.right; wrong = t.wrong; }
else { right = t.right; wrong = [h] ++ t.wrong; }
) { right = []; wrong = []; };
) { right = []; wrong = []; });
/* Merges two lists of the same size together. If the sizes aren't the same
the merging stops at the shortest. How both lists are merged is defined