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add find_index

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Justin Lin
2021-03-05 08:59:37 +08:00
parent 7230541091
commit 210e103791
1 changed files with 5 additions and 0 deletions
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src/util/find_index.scad Normal file
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@@ -0,0 +1,5 @@
function find_index(lt, test) = _find_index(lt, test, len(lt));
function _find_index(lt, test, leng, i = 0) =
i == leng ? -1 :
test(lt[i]) ? i : _find_index(lt, test, leng, i + 1);