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| author | Gioele Bucci <gioelebucci@gmail.com> | 2024-05-28 23:30:33 +0200 |
|---|---|---|
| committer | Louis Pilfold <louis@lpil.uk> | 2024-05-29 18:56:17 +0100 |
| commit | 09e2c7ee3950b0fa22d9ca1b1b68d71cc811d018 (patch) | |
| tree | c5338b342d810bf701b865d6a780f2766bc9cb87 /src | |
| parent | 4ff82ff41bef6f308ac66afe0ab3e5d27ba4f7b0 (diff) | |
| download | gleam_stdlib-09e2c7ee3950b0fa22d9ca1b1b68d71cc811d018.tar.gz gleam_stdlib-09e2c7ee3950b0fa22d9ca1b1b68d71cc811d018.zip | |
Fix infinite recursion loop in `list.window` when `by` is 0
The function would enter an endless loop if 0 was passed as second argument, for e.g
`list.window([1, 2], 0) // endless loop!`
Diffstat (limited to 'src')
| -rw-r--r-- | src/gleam/list.gleam | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/gleam/list.gleam b/src/gleam/list.gleam index e782b45..83870b4 100644 --- a/src/gleam/list.gleam +++ b/src/gleam/list.gleam @@ -1913,8 +1913,10 @@ fn do_window(acc: List(List(a)), l: List(a), n: Int) -> List(List(a)) { /// ``` /// pub fn window(l: List(a), by n: Int) -> List(List(a)) { - do_window([], l, n) - |> reverse + case n <= 0 { + True -> [] + False -> do_window([], l, n) |> reverse + } } /// Returns a list of tuples containing two contiguous elements. |