Scala 3/scala.math/Equiv/Double

Double

object Double

Equivs for Doubles.

Source:
Equiv.scala
class Object
trait Matchable
class Any
Double.type

Type members

Classlikes

object IeeeEquiv extends IeeeEquiv
Companion:
class
Source:
Equiv.scala
trait IeeeEquiv extends Equiv[Double]

An equivalence for Doubles which is consistent with IEEE specifications.

An equivalence for Doubles which is consistent with IEEE specifications.

Because the behaviour of Doubles specified by IEEE is not consistent with behaviors required of an equivalence relation for NaN (it is not reflexive), there are two equivalences defined for Double: StrictEquiv, which is reflexive, and IeeeEquiv, which is consistent with IEEE spec and floating point operations defined in scala.math.

This equivalence may be preferable for numeric contexts.

See also:
Companion:
object
Source:
Equiv.scala
object StrictEquiv extends StrictEquiv
Companion:
class
Source:
Equiv.scala
trait StrictEquiv extends Equiv[Double]

An equivalence for Doubles which is reflexive (treats all NaNs as equivalent), and treats -0.0 and 0.0 as not equivalent; it behaves the same as java.lang.Double.compare.

An equivalence for Doubles which is reflexive (treats all NaNs as equivalent), and treats -0.0 and 0.0 as not equivalent; it behaves the same as java.lang.Double.compare.

Because the behaviour of Doubles specified by IEEE is not consistent with behaviors required of an equivalence relation for NaN (it is not reflexive), there are two equivalences defined for Double: StrictEquiv, which is reflexive, and IeeeEquiv, which is consistent with IEEE spec and floating point operations defined in scala.math.

This equivalence may be preferable for collections.

See also:
Companion:
object
Source:
Equiv.scala