DoubleUnaryOperator (fastutil 8.5.2)

All Superinterfaces:: DoubleUnaryOperator, Function<Double,Double>, UnaryOperator<Double>

Functional Interface:: This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface DoubleUnaryOperator
extends UnaryOperator<Double>, DoubleUnaryOperator

A type-specific UnaryOperator; provides methods operating both on objects and on primitives.

Since:: 8.5.0
See Also:: UnaryOperator

Method Summary

Modifier and Type	Method	Description
`double`	`apply(double x)`	Computes the operator on the given input.
`default Double`	`apply(Double x)`	Deprecated. Please use the corresponding type-specific method instead.
`default double`	`applyAsDouble(double x)`	Deprecated. Please use `apply(double)`.
`static DoubleUnaryOperator`	`identity()`	Returns a `UnaryOperator` that always returns the input unmodified.
`static DoubleUnaryOperator`	`negation()`	Returns a `UnaryOperator` that always returns the arithmetic negation of the input.

Methods inherited from interface java.util.function.DoubleUnaryOperator

andThen, compose

Methods inherited from interface java.util.function.Function

andThen, compose

Method Details
- apply
  
  double apply(double x)
  
  Computes the operator on the given input.
  
  Parameters:
  
  x - the input.
  
  Returns:
  
  the output of the operator on the given input.
- identity
  
  static DoubleUnaryOperator identity()
  
  Returns a UnaryOperator that always returns the input unmodified.
  
  See Also:
  
  UnaryOperator.identity()
- negation
  
  static DoubleUnaryOperator negation()
  
  Returns a UnaryOperator that always returns the arithmetic negation of the input.
  
  Implementation Notes:
  
  As with all negation, be wary of unexpected behavior near the minimum value of the data type. For example, -Integer.MIN_VALUE will result in Integer.MIN_VALUE (still negative), as the positive value of Integer.MIN_VALUE is too big for int (it would be 1 greater then Integer.MAX_VALUE).
- applyAsDouble
  
  @Deprecated default double applyAsDouble(double x)
  
  Deprecated.
  Please use apply(double).
  
  Specified by:
  
  applyAsDouble in interface DoubleUnaryOperator
  
  Implementation Specification:
  
  This default implementation delegates to apply(double).
- apply
  
  @Deprecated default Double apply(Double x)
  
  Deprecated.
  Please use the corresponding type-specific method instead.
  
  Specified by:
  
  apply in interface Function<Double,Double>