13 lines
398 B
Scala
13 lines
398 B
Scala
object SafeAddition extends App {
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val (a, b) = (1.2, 0.03)
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val result = safeAdd(a, b)
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private def safeAdd(a: Double, b: Double) = Seq(stepDown(a + b), stepUp(a + b))
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private def stepDown(d: Double) = Math.nextAfter(d, Double.NegativeInfinity)
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private def stepUp(d: Double) = Math.nextUp(d)
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println(f"($a%.2f + $b%.2f) is in the range ${result.head}%.16f .. ${result.last}%.16f")
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}
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