ToDoubleRounder

java.lang.Object
- com.google.common.math.ToDoubleRounder<X>

Direct Known Subclasses:

BigDecimalMath.BigDecimalToDoubleRounder, BigIntegerMath.BigIntegerToDoubleRounder
```
abstract class ToDoubleRounder<X extends java.lang.Number & java.lang.Comparable<X>>
extends java.lang.Object
```
Helper type to implement rounding X to a representable double value according to a RoundingMode.

Constructor Summary

Constructors
Constructor Description

ToDoubleRounder()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`(package private) abstract X`	`minus(X a, X b)`	Returns a - b, guaranteed that both arguments are nonnegative.
`(package private) double`	`roundToDouble(X x, java.math.RoundingMode mode)`	Rounds `x` to a `double`.
`(package private) abstract double`	`roundToDoubleArbitrarily(X x)`	Returns x rounded to either the greatest double less than or equal to the precise value of x, or the least double greater than or equal to the precise value of x.
`(package private) abstract int`	`sign(X x)`	Returns the sign of x: either -1, 0, or 1.
`(package private) abstract X`	`toX(double d, java.math.RoundingMode mode)`	Returns d's value as an X, rounded with the specified mode.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ToDoubleRounder
```
ToDoubleRounder()
```
- Method Detail
  - roundToDoubleArbitrarily
```
abstract double roundToDoubleArbitrarily(X x)
```
    Returns x rounded to either the greatest double less than or equal to the precise value of x, or the least double greater than or equal to the precise value of x.
  - sign
```
abstract int sign(X x)
```
    Returns the sign of x: either -1, 0, or 1.
  - toX
```
abstract X toX(double d,
               java.math.RoundingMode mode)
```
    Returns d's value as an X, rounded with the specified mode.
  - minus
```
abstract X minus(X a,
                 X b)
```
    Returns a - b, guaranteed that both arguments are nonnegative.
  - roundToDouble
```
final double roundToDouble(X x,
                           java.math.RoundingMode mode)
```
    Rounds x to a double.