Package it.unimi.dsi.fastutil.doubles
Interface DoubleUnaryOperator
- 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 useapply(double)
.static DoubleUnaryOperator
identity()
Returns aUnaryOperator
that always returns the input unmodified.static DoubleUnaryOperator
negation()
Returns aUnaryOperator
that always returns the arithmetic negation of the input.Methods inherited from interface java.util.function.DoubleUnaryOperator
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
Returns aUnaryOperator
that always returns the input unmodified.- See Also:
UnaryOperator.identity()
-
negation
Returns aUnaryOperator
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 inInteger.MIN_VALUE
(still negative), as the positive value ofInteger.MIN_VALUE
is too big forint
(it would be 1 greater thenInteger.MAX_VALUE
).
-
applyAsDouble
Deprecated.Please useapply(double)
.- Specified by:
applyAsDouble
in interfaceDoubleUnaryOperator
- Implementation Specification:
- This default implementation delegates to
apply(double)
.
-
apply
Deprecated.Please use the corresponding type-specific method instead.
-