[][src]Trait rug::ops::MulAssignRound

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

Compound multiplication and assignment with a specified rounding method.

Examples

use core::cmp::Ordering;
use rug::{float::Round, ops::MulAssignRound, Float};
struct F(f64);
impl MulAssignRound<f64> for F {
    type Round = Round;
    type Ordering = Ordering;
    fn mul_assign_round(&mut self, rhs: f64, round: Round) -> Ordering {
        let mut f = Float::with_val(53, self.0);
        let dir = f.mul_assign_round(rhs, round);
        self.0 = f.to_f64();
        dir
    }
}
let mut f = F(3.0);
let dir = f.mul_assign_round(5.0, Round::Nearest);
// 3.0 × 5.0 = 15.0
assert_eq!(f.0, 15.0);
assert_eq!(dir, Ordering::Equal);

Associated Types

type Round

The rounding method.

type Ordering

The direction from rounding.

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Required methods

fn mul_assign_round(&mut self, rhs: Rhs, round: Self::Round) -> Self::Ordering

Performs the multiplication.

Examples

use core::cmp::Ordering;
use rug::{float::Round, ops::MulAssignRound, Float};
// only four significant bits
let mut f = Float::with_val(4, -3);
let dir = f.mul_assign_round(13, Round::Nearest);
// −39 rounded down to −40
assert_eq!(f, -40);
assert_eq!(dir, Ordering::Less);
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Implementors

impl MulAssignRound<f32> for Float[src]

type Round = Round

type Ordering = Ordering

impl MulAssignRound<f32> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl MulAssignRound<f64> for Float[src]

type Round = Round

type Ordering = Ordering

impl MulAssignRound<f64> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl MulAssignRound<i128> for Float[src]

type Round = Round

type Ordering = Ordering

impl MulAssignRound<i128> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl MulAssignRound<i16> for Float[src]

type Round = Round

type Ordering = Ordering

impl MulAssignRound<i16> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl MulAssignRound<i32> for Float[src]

type Round = Round

type Ordering = Ordering

impl MulAssignRound<i32> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl MulAssignRound<i64> for Float[src]

type Round = Round

type Ordering = Ordering

impl MulAssignRound<i64> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl MulAssignRound<i8> for Float[src]

type Round = Round

type Ordering = Ordering

impl MulAssignRound<i8> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl MulAssignRound<u128> for Float[src]

type Round = Round

type Ordering = Ordering

impl MulAssignRound<u128> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl MulAssignRound<u16> for Float[src]

type Round = Round

type Ordering = Ordering

impl MulAssignRound<u16> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl MulAssignRound<u32> for Float[src]

type Round = Round

type Ordering = Ordering

impl MulAssignRound<u32> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl MulAssignRound<u64> for Float[src]

type Round = Round

type Ordering = Ordering

impl MulAssignRound<u64> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl MulAssignRound<u8> for Float[src]

type Round = Round

type Ordering = Ordering

impl MulAssignRound<u8> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl MulAssignRound<Complex> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl MulAssignRound<Float> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl MulAssignRound<Float> for Float[src]

type Round = Round

type Ordering = Ordering

impl MulAssignRound<Integer> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl MulAssignRound<Integer> for Float[src]

type Round = Round

type Ordering = Ordering

impl MulAssignRound<Rational> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl MulAssignRound<Rational> for Float[src]

type Round = Round

type Ordering = Ordering

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

type Round = Round

type Ordering = Ordering

impl<'_> MulAssignRound<&'_ f32> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

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

type Round = Round

type Ordering = Ordering

impl<'_> MulAssignRound<&'_ f64> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

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

type Round = Round

type Ordering = Ordering

impl<'_> MulAssignRound<&'_ i128> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

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

type Round = Round

type Ordering = Ordering

impl<'_> MulAssignRound<&'_ i16> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

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

type Round = Round

type Ordering = Ordering

impl<'_> MulAssignRound<&'_ i32> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

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

type Round = Round

type Ordering = Ordering

impl<'_> MulAssignRound<&'_ i64> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

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

type Round = Round

type Ordering = Ordering

impl<'_> MulAssignRound<&'_ i8> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

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

type Round = Round

type Ordering = Ordering

impl<'_> MulAssignRound<&'_ u128> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

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

type Round = Round

type Ordering = Ordering

impl<'_> MulAssignRound<&'_ u16> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

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

type Round = Round

type Ordering = Ordering

impl<'_> MulAssignRound<&'_ u32> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

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

type Round = Round

type Ordering = Ordering

impl<'_> MulAssignRound<&'_ u64> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

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

type Round = Round

type Ordering = Ordering

impl<'_> MulAssignRound<&'_ u8> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl<'_> MulAssignRound<&'_ Complex> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl<'_> MulAssignRound<&'_ Float> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

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

type Round = Round

type Ordering = Ordering

impl<'_> MulAssignRound<&'_ Integer> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

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

type Round = Round

type Ordering = Ordering

impl<'_> MulAssignRound<&'_ Rational> for Complex[src]

type Round = (Round, Round)

type Ordering = (Ordering, Ordering)

impl<'_> MulAssignRound<&'_ Rational> for Float[src]

type Round = Round

type Ordering = Ordering

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