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Fix #19314 - fixing broken DoublyLinkedList after adding empty DoublyLinkedList (#19315) [backport]

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* Update lists.nim

* Update tlists.nim
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rockcavera 2022-01-03 16:14:08 -03:00 • committed by GitHub
commit 526a32e169
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2 changed files with 18 additions and 6 deletions
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12
tests/stdlib/tlists.nim
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@ -245,6 +245,18 @@ template main =
doAssert a.toSeq == @[1]
a.add(2)
doAssert a.toSeq == @[1, 2]
block issue19314: # add (appends a shallow copy)
var a: DoublyLinkedList[int]
var b: DoublyLinkedList[int]
doAssert a.toSeq == @[]
a.add(1)
doAssert a.toSeq == @[1]
a.add(b)
doAssert a.toSeq == @[1]
a.add(2)
doAssert a.toSeq == @[1, 2]
static: main()
main()