Scala 3/API/scala.math/Numeric/DoubleIsFractional

DoubleIsFractional

object DoubleIsFractional extends DoubleIsFractional with IeeeOrdering
Companion
class
trait Equiv[Double]
class Object
trait Matchable
class Any

Type members

Inherited classlikes

class FractionalOps(lhs: T)
Inherited from
Fractional
class NumericOps(lhs: T)
Inherited from
Numeric
class OrderingOps(lhs: T)

This inner class defines comparison operators available for T.

This inner class defines comparison operators available for T.

It can't extend AnyVal because it is not a top-level class or a member of a statically accessible object.

Inherited from
Ordering

Value members

Inherited methods

override def abs(x: Double): Double
Definition Classes
Inherited from
DoubleIsFractional
def compare(x: Double, y: Double): Int
Inherited from
IeeeOrdering
def div(x: Double, y: Double): Double
Inherited from
DoubleIsFractional
override def equiv(x: Double, y: Double): Boolean
Definition Classes
Inherited from
IeeeOrdering
def fromInt(x: Int): Double
Inherited from
DoubleIsFractional
override def gt(x: Double, y: Double): Boolean
Definition Classes
Inherited from
IeeeOrdering
override def gteq(x: Double, y: Double): Boolean
Definition Classes
Inherited from
IeeeOrdering
def isReverseOf(other: Ordering[_]): Boolean

Returns whether or not the other ordering is the opposite ordering of this one.

Returns whether or not the other ordering is the opposite ordering of this one.

Equivalent to other == this.reverse.

Implementations should only override this method if they are overriding reverse as well.

Inherited from
Ordering
override def lt(x: Double, y: Double): Boolean
Definition Classes
Inherited from
IeeeOrdering
override def lteq(x: Double, y: Double): Boolean
Definition Classes
Inherited from
IeeeOrdering
override def max[U <: Double](x: U, y: U): U
Definition Classes
Inherited from
IeeeOrdering
override def min[U <: Double](x: U, y: U): U
Definition Classes
Inherited from
IeeeOrdering
def minus(x: Double, y: Double): Double
Inherited from
DoubleIsFractional
def negate(x: Double): Double
Inherited from
DoubleIsFractional
def on[U](f: U => Double): Ordering[U]

Given f, a function from U into T, creates an Ordering[U] whose compare function is equivalent to:

Given f, a function from U into T, creates an Ordering[U] whose compare function is equivalent to:

def compare(x:U, y:U) = Ordering[T].compare(f(x), f(y))
Inherited from
Ordering
def one: Double
Inherited from
Numeric
def orElse(other: Ordering[Double]): Ordering[Double]

Creates an Ordering[T] whose compare function returns the result of this Ordering's compare function, if it is non-zero, or else the result of others compare function.

Creates an Ordering[T] whose compare function returns the result of this Ordering's compare function, if it is non-zero, or else the result of others compare function.

Value Params
other

an Ordering to use if this Ordering returns zero

Example

case class Pair(a: Int, b: Int)
val pairOrdering = Ordering.by[Pair, Int](_.a)
                          .orElse(Ordering.by[Pair, Int](_.b))
Inherited from
Ordering
def orElseBy[S](f: Double => S)(ord: Ordering[S]): Ordering[Double]

Given f, a function from T into S, creates an Ordering[T] whose compare function returns the result of this Ordering's compare function, if it is non-zero, or else a result equivalent to:

Given f, a function from T into S, creates an Ordering[T] whose compare function returns the result of this Ordering's compare function, if it is non-zero, or else a result equivalent to:

Ordering[S].compare(f(x), f(y))

This function is equivalent to passing the result of Ordering.by(f) to orElse.

Example

case class Pair(a: Int, b: Int)
val pairOrdering = Ordering.by[Pair, Int](_.a)
                          .orElseBy[Int](_.b)
Inherited from
Ordering
def plus(x: Double, y: Double): Double
Inherited from
DoubleIsFractional
override def reverse: Ordering[Double]

Return the opposite ordering of this one.

Return the opposite ordering of this one.

Implementations overriding this method MUST override isReverseOf as well if they change the behavior at all (for example, caching does not require overriding it).

Definition Classes
Inherited from
Ordering
def reversed(): Comparator[Double]
Inherited from
Comparator
override def sign(x: Double): Double
Definition Classes
Inherited from
DoubleIsFractional
def thenComparing[U <: Comparable[_ >: U <: `<FromJavaObject>`]](`x$0`: Function[_ >: T <: `<FromJavaObject>`, _ <: U]): Comparator[Double]
Inherited from
Comparator
def thenComparing[U <: `<FromJavaObject>`](`x$0`: Function[_ >: T <: `<FromJavaObject>`, _ <: U], `x$1`: Comparator[_ >: U <: `<FromJavaObject>`]): Comparator[Double]
Inherited from
Comparator
def thenComparing(`x$0`: Comparator[_ >: T <: `<FromJavaObject>`]): Comparator[Double]
Inherited from
Comparator
def thenComparingDouble(`x$0`: ToDoubleFunction[_ >: T <: `<FromJavaObject>`]): Comparator[Double]
Inherited from
Comparator
def thenComparingInt(`x$0`: ToIntFunction[_ >: T <: `<FromJavaObject>`]): Comparator[Double]
Inherited from
Comparator
def thenComparingLong(`x$0`: ToLongFunction[_ >: T <: `<FromJavaObject>`]): Comparator[Double]
Inherited from
Comparator
def times(x: Double, y: Double): Double
Inherited from
DoubleIsFractional
def toDouble(x: Double): Double
Inherited from
DoubleIsFractional
def toFloat(x: Double): Float
Inherited from
DoubleIsFractional
def toInt(x: Double): Int
Inherited from
DoubleIsFractional
def toLong(x: Double): Long
Inherited from
DoubleIsFractional
def tryCompare(x: Double, y: Double): Option[Int]

Returns whether a comparison between x and y is defined, and if so the result of compare(x, y).

Returns whether a comparison between x and y is defined, and if so the result of compare(x, y).

Inherited from
Ordering
def zero: Double
Inherited from
Numeric

Deprecated and Inherited methods

@deprecated("use `sign` method instead", since = "2.13.0")
def signum(x: Double): Int
Deprecated
[Since version 2.13.0]
Inherited from
Numeric

Implicits

Inherited implicits

implicit override def mkNumericOps(lhs: Double): FractionalOps
Definition Classes
Inherited from
Fractional
implicit def mkOrderingOps(lhs: Double): OrderingOps

This implicit method augments T with the comparison operators defined in scala.math.Ordering.Ops.

This implicit method augments T with the comparison operators defined in scala.math.Ordering.Ops.

Inherited from
Ordering