[][src]Enum rug::float::Round

pub enum Round {
    // some variants omitted

The rounding methods for floating-point values.

When rounding to the nearest, if the number to be rounded is exactly between two representable numbers, it is rounded to the even one, that is, the one with the least significant bit set to zero.


use rug::{float::Round, ops::AssignRound, Float};
let mut f4 = Float::new(4);
f4.assign_round(10.4, Round::Nearest);
assert_eq!(f4, 10);
f4.assign_round(10.6, Round::Nearest);
assert_eq!(f4, 11);
f4.assign_round(-10.7, Round::Zero);
assert_eq!(f4, -10);
f4.assign_round(10.3, Round::Up);
assert_eq!(f4, 11);

Rounding to the nearest will round numbers exactly between two representable numbers to the even one.

use rug::{float::Round, ops::AssignRound, Float};
// 24 is 11000 in binary
// 25 is 11001 in binary
// 26 is 11010 in binary
// 27 is 11011 in binary
// 28 is 11100 in binary
let mut f4 = Float::new(4);
f4.assign_round(25, Round::Nearest);
assert_eq!(f4, 24);
f4.assign_round(27, Round::Nearest);
assert_eq!(f4, 28);



Round towards the nearest.


Round towards zero.


Round towards plus infinity.


Round towards minus infinity.

Trait Implementations

impl Clone for Round[src]

impl Copy for Round[src]

impl Debug for Round[src]

impl Default for Round[src]

impl Eq for Round[src]

impl Hash for Round[src]

impl Ord for Round[src]

impl PartialEq<Round> for Round[src]

impl PartialOrd<Round> for Round[src]

impl StructuralEq for Round[src]

impl StructuralPartialEq for Round[src]

Auto Trait Implementations

impl RefUnwindSafe for Round

impl Send for Round

impl Sync for Round

impl Unpin for Round

impl UnwindSafe for Round

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized

impl<T> Az for T[src]

impl<T> Borrow<T> for T where
    T: ?Sized

impl<T> BorrowMut<T> for T where
    T: ?Sized

impl<T> CheckedAs for T[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 

impl<T> OverflowingAs for T[src]

impl<T> SaturatingAs for T[src]

impl<T> ToOwned for T where
    T: Clone

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> WrappingAs for T[src]