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tools: add range2 function

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Rodrigo Arias 2021-01-28 15:00:43 +01:00
parent a3804e31f2
commit 0bc81c8943
1 changed files with 7 additions and 0 deletions
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7
garlic/tools.nix
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@ -51,6 +51,13 @@ let
# each element of the list. # each element of the list.
expRange = base: a: b: (map (ex: pow base ex) (range a b)); expRange = base: a: b: (map (ex: pow base ex) (range a b));
# Generates a range from start to end (inclusive) by multiplying start by 2.
range2 = start: end:
let
_range2 = s: e: if (s > e) then [] else [ s ] ++ (_range2 (s * 2) e);
in
_range2 start end;
# Generates a list of integers by halving number N until it reaches 1. Is # Generates a list of integers by halving number N until it reaches 1. Is
# sorted from the smallest to largest. # sorted from the smallest to largest.
halfList = N: halfList = N: