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tpolecat/gist:5639490

Last active December 17, 2015 16:29
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gistfile1.scala
scala> import Ordering.Implicits._
import Ordering.Implicits._
scala> :pa
// Entering paste mode (ctrl-D to finish)
case class A(n:Int, s:String)
object A {
implicit val ord = Ordering.by(unapply)
}
// Exiting paste mode, now interpreting.
defined class A
defined module A
scala> A(1, "foo") < A(2, "bar")
res0: Boolean = true
scala>
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