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* Function concatLists to concatenate a list of lists.

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svn path=/nixpkgs/trunk/; revision=8219
This commit is contained in:
Eelco Dolstra 2007-03-06 00:01:27 +00:00
parent c212318239
commit 7b7230b0e9
1 changed files with 5 additions and 0 deletions
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pkgs/lib/default.nix
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@ -19,6 +19,11 @@ rec {
else op (head list) (fold op nul (tail list)); else op (head list) (fold op nul (tail list));
# Concatenate a list of lists.
concatLists =
fold (x: y: x ++ y) [];
# Concatenate a list of strings. # Concatenate a list of strings.
concatStrings = concatStrings =
fold (x: y: x + y) ""; fold (x: y: x + y) "";