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Size: a a a
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addAll(xs: IterableOnce[A]):
this.
type = {
if (xs.asInstanceOf[AnyRef] eq
this) addAll(
Buffer.from(xs)) // avoid mutating under our own iterator
else {
val it = xs.iterator
while (it.hasNext) {
addOne(it.next())
}
}
this}
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λ