Trait rug::ops::DivFromRound [−][src]
pub trait DivFromRound<Lhs = Self> { type Round; type Ordering; fn div_from_round(&mut self, rhs: Lhs, round: Self::Round) -> Self::Ordering; }
Compound division and assignment to the rhs operand with a specified rounding method.
Examples
use rug::float::Round; use rug::ops::{DivAssignRound, DivFromRound}; use rug::Float; use std::cmp::Ordering; 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
Required Methods
fn div_from_round(&mut self, rhs: Lhs, round: Self::Round) -> Self::Ordering
Performs the division.
Examples
use rug::Float; use rug::float::Round; use rug::ops::DivFromRound; use std::cmp::Ordering; // 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);
Implementors
impl<'a> DivFromRound<Float> for Float type Round = Round; type Ordering = Ordering;
impl<'a> DivFromRound<&'a Float> for Float type Round = Round; type Ordering = Ordering;
impl DivFromRound<Integer> for Float type Round = Round; type Ordering = Ordering;
impl<'a> DivFromRound<&'a Integer> for Float type Round = Round; type Ordering = Ordering;
impl DivFromRound<Rational> for Float type Round = Round; type Ordering = Ordering;
impl<'a> DivFromRound<&'a Rational> for Float type Round = Round; type Ordering = Ordering;
impl DivFromRound<i32> for Float type Round = Round; type Ordering = Ordering;
impl<'t> DivFromRound<&'t i32> for Float type Round = Round; type Ordering = Ordering;
impl DivFromRound<u32> for Float type Round = Round; type Ordering = Ordering;
impl<'t> DivFromRound<&'t u32> for Float type Round = Round; type Ordering = Ordering;
impl DivFromRound<f32> for Float type Round = Round; type Ordering = Ordering;
impl<'t> DivFromRound<&'t f32> for Float type Round = Round; type Ordering = Ordering;
impl DivFromRound<f64> for Float type Round = Round; type Ordering = Ordering;
impl<'t> DivFromRound<&'t f64> for Float type Round = Round; type Ordering = Ordering;
impl<'a> DivFromRound<Complex> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl<'a> DivFromRound<&'a Complex> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl DivFromRound<Float> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl<'a> DivFromRound<&'a Float> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl DivFromRound<u32> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl<'t> DivFromRound<&'t u32> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl DivFromRound<i32> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl<'t> DivFromRound<&'t i32> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl DivFromRound<f32> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl<'t> DivFromRound<&'t f32> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl DivFromRound<f64> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl<'t> DivFromRound<&'t f64> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);