Package it.unimi.dsi.fastutil.floats

Interface FloatUnaryOperator

All Superinterfaces:
DoubleUnaryOperator, Function<Float,Float>, UnaryOperator<Float>
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 FloatUnaryOperator extends UnaryOperator<Float>, DoubleUnaryOperator
A type-specific UnaryOperator; provides methods operating both on objects and on primitives.
Since:
8.5.0
See Also:

  • Method Summary

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

      float apply(float x)
      Computes the operator on the given input.
      Parameters:
      x - the input.
      Returns:
      the output of the operator on the given input.

    • identity

      static FloatUnaryOperator identity()
      Returns a UnaryOperator that always returns the input unmodified.
      See Also:

    • negation

      static FloatUnaryOperator 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(float).
      Specified by:
      applyAsDouble in interface DoubleUnaryOperator
      Throws:
      IllegalArgumentException - If the given operands are not an element of the key domain.
      Since:
      8.5.0
      Implementation Specification:
      This default implementation delegates to apply(float) after narrowing down the argument to the actual key type, throwing an exception if the argument cannot be represented in the restricted domain. This is done for interoperability with the Java 8 function environment. The use of this method discouraged, as unexpected errors can occur.

    • apply

      @Deprecated default Float apply(Float x)
      Deprecated.
      Please use the corresponding type-specific method instead.
      Specified by:
      apply in interface Function<Float,Float>