Nim/tests/objects/t20972.nim

discard """
  matrix: "--mm:refc -d:release; --mm:orc -d:release"
"""

{.passC: "-fsanitize=undefined -fsanitize-undefined-trap-on-error -Wall -Wextra -pedantic -flto".}
{.passL: "-fsanitize=undefined -fsanitize-undefined-trap-on-error -flto".}

# bug #20972
type ForkedEpochInfo = object
  case kind: bool
  of true, false: discard
var info = ForkedEpochInfo(kind: true)
doAssert info.kind
info.kind = false
doAssert not info.kind

block: # bug #22153
  discard allocCStringArray([""])
  discard allocCStringArray(["1234"])

  var s = "1245"
  s.add "1"
  discard allocCStringArray([s])