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Code Issues Wiki Activity

Fix evaluation problem

Browse source 
http://hydra.nixos.org/build/2940128
This commit is contained in:
Eelco Dolstra 2012-08-14 13:42:43 -04:00
parent f136179002
commit 9d516f16fc
1 changed files with 4 additions and 4 deletions
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8
pkgs/lib/lists.nix
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@ -1,14 +1,14 @@
# General list operations.
rec {
inherit (builtins) elemAt head tail length isList add sub lessThan;
inherit (builtins) head tail length isList add sub lessThan;
# Create a list consisting of a single element. `singleton x' is
# sometimes more convenient with respect to indentation than `[x]'
# when x spans multiple lines.
singleton = x: [x];
# "Fold" a binary function `op' between successive elements of
# `list' with `nul' as the starting value, i.e., `fold op nul [x_1
@ -22,7 +22,7 @@ rec {
fold' = n:
if n == len
then nul
else op (elemAt list n) (fold' (add n 1));
else op (builtins.elemAt list n) (fold' (add n 1));
in fold' 0
else op: nul:
let fold' = list:
@ -42,7 +42,7 @@ rec {
foldl' = n:
if n == minus1
then nul
else op (foldl' (sub n 1)) (elemAt list n);
else op (foldl' (sub n 1)) (builtins.elemAt list n);
in foldl' (sub (length list) 1)
else op:
let foldl' = nul: list: