Trait rug::ops::DivFromRound[−][src]

pub trait DivFromRound<Lhs = Self> {
    type Round;
    type Ordering;
    fn div_from_round(&mut self, lhs: Lhs, round: Self::Round) -> Self::Ordering;
}

Compound division and assignment to the rhs operand with a specified rounding method.

Examples

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

Loading content...

Required methods

`fn div_from_round(&mut self, lhs: Lhs, round: Self::Round) -> Self::Ordering`[src]

Performs the division.

Examples

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

Loading content...

Implementors

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

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: &f32, round: Round) -> Ordering`[src]

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

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: &f64, round: Round) -> Ordering`[src]

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

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: &i8, round: Round) -> Ordering`[src]

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

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: &i16, round: Round) -> Ordering`[src]

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

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: &i32, round: Round) -> Ordering`[src]

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

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: &i64, round: Round) -> Ordering`[src]

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

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: &i128, round: Round) -> Ordering`[src]

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

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: &u8, round: Round) -> Ordering`[src]

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

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: &u16, round: Round) -> Ordering`[src]

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

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: &u32, round: Round) -> Ordering`[src]

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

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: &u64, round: Round) -> Ordering`[src]

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

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: &u128, round: Round) -> Ordering`[src]

`impl DivFromRound<&'_ Float> for Float`[src]

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: &Float, round: Round) -> Ordering`[src]

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

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: &Integer, round: Round) -> Ordering`[src]

`impl DivFromRound<f32> for Float`[src]

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: f32, round: Round) -> Ordering`[src]

`impl DivFromRound<f64> for Float`[src]

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: f64, round: Round) -> Ordering`[src]

`impl DivFromRound<i8> for Float`[src]

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: i8, round: Round) -> Ordering`[src]

`impl DivFromRound<i16> for Float`[src]

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: i16, round: Round) -> Ordering`[src]

`impl DivFromRound<i32> for Float`[src]

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: i32, round: Round) -> Ordering`[src]

`impl DivFromRound<i64> for Float`[src]

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: i64, round: Round) -> Ordering`[src]

`impl DivFromRound<i128> for Float`[src]

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: i128, round: Round) -> Ordering`[src]

`impl DivFromRound<u8> for Float`[src]

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: u8, round: Round) -> Ordering`[src]

`impl DivFromRound<u16> for Float`[src]

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: u16, round: Round) -> Ordering`[src]

`impl DivFromRound<u32> for Float`[src]

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: u32, round: Round) -> Ordering`[src]

`impl DivFromRound<u64> for Float`[src]

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: u64, round: Round) -> Ordering`[src]

`impl DivFromRound<u128> for Float`[src]

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: u128, round: Round) -> Ordering`[src]

`impl DivFromRound<Float> for Float`[src]

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: Float, round: Round) -> Ordering`[src]

`impl DivFromRound<Integer> for Float`[src]

`type Round = Round`

`type Ordering = Ordering`

`fn div_from_round(&mut self, lhs: Integer, round: Round) -> Ordering`[src]

Loading content...