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fmpwizard/scalaz.scala

Created August 24, 2011 02:55
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scalaz.scala
scala> val o= Some(3)
o: Some[Int] = Some(3)
scala> ~o
res27: Int = 3
scala> val oo= None: Option[Int]
oo: Option[Int] = None
scala> ~oo
res29: Int = 0
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