Trait rug::ops::DivAssignRound[][src]

pub trait DivAssignRound<Rhs = Self> {
    type Round;
    type Ordering;
    fn div_assign_round(
        &mut self,
        rhs: Rhs,
        round: Self::Round
    ) -> Self::Ordering; }

Compound division and assignment with a specified rounding method.

Examples

use core::cmp::Ordering;
use rug::{float::Round, ops::DivAssignRound, Float};
struct F(f64);
impl DivAssignRound<f64> for F {
    type Round = Round;
    type Ordering = Ordering;
    fn div_assign_round(&mut self, rhs: f64, round: Round) -> Ordering {
        let mut f = Float::with_val(53, self.0);
        let dir = f.div_assign_round(rhs, round);
        self.0 = f.to_f64();
        dir
    }
}
let mut f = F(3.0);
let dir = f.div_assign_round(4.0, Round::Nearest);
// 3.0 / 4.0 = 0.75
assert_eq!(f.0, 0.75);
assert_eq!(dir, Ordering::Equal);

Associated Types

type Round[src]

The rounding method.

type Ordering[src]

The direction from rounding.

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Required methods

fn div_assign_round(&mut self, rhs: Rhs, round: Self::Round) -> Self::Ordering[src]

Performs the division.

Examples

use core::cmp::Ordering;
use rug::{float::Round, ops::DivAssignRound, Float};
// only four significant bits
let mut f = Float::with_val(4, -3);
let dir = f.div_assign_round(5, Round::Nearest);
// −0.6 rounded down to −0.625
assert_eq!(f, -0.625);
assert_eq!(dir, Ordering::Less);
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Implementors

impl DivAssignRound<&'_ f32> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<&'_ f64> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<&'_ i8> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<&'_ i16> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<&'_ i32> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<&'_ i64> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<&'_ i128> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<&'_ u8> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<&'_ u16> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<&'_ u32> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<&'_ u64> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<&'_ u128> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<&'_ Float> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<&'_ Integer> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<f32> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<f64> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<i8> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<i16> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<i32> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<i64> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<i128> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<u8> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<u16> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<u32> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<u64> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<u128> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<Float> for Float[src]

type Round = Round

type Ordering = Ordering

impl DivAssignRound<Integer> for Float[src]

type Round = Round

type Ordering = Ordering

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