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Minor fixes for PR #216

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Garth Minette
2020-07-29 21:58:12 -07:00
parent 5e98cbf679
commit aa0e77b1f4
4 changed files with 8 additions and 6 deletions
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4
arrays.scad
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@@ -66,8 +66,8 @@ function select(list, start, end=undef) =
list[ (start%l+l)%l ]
: assert( is_list(start) || is_range(start), "Invalid start parameter")
[for (i=start) list[ (i%l+l)%l ] ]
: assert(is_num(start), "Invalid start parameter.")
assert(is_num(end), "Invalid end parameter.")
: assert(is_finite(start), "Invalid start parameter.")
assert(is_finite(end), "Invalid end parameter.")
let( s = (start%l+l)%l, e = (end%l+l)%l )
(s <= e)? [for (i = [s:1:e]) list[i]]
: concat([for (i = [s:1:l-1]) list[i]], [for (i = [0:1:e]) list[i]]) ;