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return first when leng is 1

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This commit is contained in:
Justin Lin
2022-03-04 19:52:16 +08:00
parent 2771e2cd31
commit b89c2d90d3
1 changed files with 3 additions and 4 deletions
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7
src/util/sum.scad
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@@ -9,8 +9,7 @@
**/
function sum(lt) =
let(
end = len(lt) - 1,
cum_total = [for(i = 0, s = lt[0]; i < end; i = i + 1, s = s + lt[i]) s]
)
let(end = len(lt) - 1)
end == 0 ? lt[0] :
let(cum_total = [for(i = 0, s = lt[0]; i < end; i = i + 1, s = s + lt[i]) s])
cum_total[len(cum_total) - 1] + lt[end];