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| author | Nicolas Pierron <nicolas.b.pierron@gmail.com> | 2010-01-03 11:05:42 +0000 |
|---|---|---|
| committer | Nicolas Pierron <nicolas.b.pierron@gmail.com> | 2010-01-03 11:05:42 +0000 |
| commit | d311b4e98f37f9e3d52c837077e99ad5b4cce4bc (patch) | |
| tree | ead72a79332164c76d50db97e435d20a44a19095 /pkgs/lib/lists.nix | |
| parent | ab1eec6a60f0ef35083aa9ec59f98ac789e657cf (diff) | |
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* Add a function to take the last element of a list.
svn path=/nixpkgs/trunk/; revision=19179
Diffstat (limited to 'pkgs/lib/lists.nix')
| -rw-r--r-- | pkgs/lib/lists.nix | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/pkgs/lib/lists.nix b/pkgs/lib/lists.nix index 4359662da27..6141ad413d3 100644 --- a/pkgs/lib/lists.nix +++ b/pkgs/lib/lists.nix @@ -167,4 +167,9 @@ rec { if list == [] || count == 0 then [] else [ (head list) ] ++ take (builtins.sub count 1) (tail list); + last = list: + assert list != []; + let loop = l: if tail l == [] then head l else loop (tail l); in + loop list; + } |