Package it.unimi.dsi.fastutil.ints

Interface IntUnaryOperator

All Superinterfaces:

Function<Integer,Integer>, IntUnaryOperator, UnaryOperator<Integer>

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 IntUnaryOperator
extends UnaryOperator<Integer>, IntUnaryOperator

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
int	apply(int x)	Computes the operator on the given input.
default Integer	apply(Integer x)	Deprecated. Please use the corresponding type-specific method instead.
default int	applyAsInt(int x)	Deprecated. Please use apply(int).
static IntUnaryOperator	identity()	Returns a UnaryOperator that always returns the input unmodified.
static IntUnaryOperator	negation()	Returns a UnaryOperator that always returns the arithmetic negation of the input.

Methods inherited from interface java.util.function.Function

andThen, compose

Methods inherited from interface java.util.function.IntUnaryOperator

andThen, compose

Method Details

apply

int apply(int x)

Computes the operator on the given input.

Parameters:

x - the input.

Returns:

the output of the operator on the given input.

identity

static IntUnaryOperator identity()

Returns a UnaryOperator that always returns the input unmodified.

See Also:

• UnaryOperator.identity()

negation

static IntUnaryOperator 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).

applyAsInt

@Deprecated
default int applyAsInt(int x)

Deprecated.

Please use apply(int).

Specified by:

applyAsInt in interface IntUnaryOperator

Implementation Specification:

This default implementation delegates to apply(int).

apply

@Deprecated
default Integer apply(Integer x)

Deprecated.

Please use the corresponding type-specific method instead.

Specified by:

apply in interface Function<Integer,Integer>