Trait rug::ops::AddAssignRound
[−]
[src]
pub trait AddAssignRound<Rhs = Self> { type Round; type Ordering; fn add_assign_round(
&mut self,
rhs: Rhs,
round: Self::Round
) -> Self::Ordering; }
Compound addition and assignment with a specified rounding method.
Examples
use rug::Float; use rug::float::Round; use rug::ops::AddAssignRound; use std::cmp::Ordering; struct F(f64); impl AddAssignRound<f64> for F { type Round = Round; type Ordering = Ordering; fn add_assign_round(&mut self, rhs: f64, round: Round) -> Ordering { let mut f = Float::with_val(53, self.0); let dir = f.add_assign_round(rhs, round); self.0 = f.to_f64(); dir } } let mut f = F(3.0); let dir = f.add_assign_round(5.0, Round::Nearest); // 3.0 + 5.0 = 8.0 assert_eq!(f.0, 8.0); assert_eq!(dir, Ordering::Equal);
Associated Types
Required Methods
fn add_assign_round(&mut self, rhs: Rhs, round: Self::Round) -> Self::Ordering
Performs the addition.
Examples
use rug::Float; use rug::float::Round; use rug::ops::AddAssignRound; use std::cmp::Ordering; // only four significant bits let mut f = Float::with_val(4, -3); let dir = f.add_assign_round(-0.3, Round::Nearest); // -3.3 rounded up to -3.25 assert_eq!(f, -3.25); assert_eq!(dir, Ordering::Greater);
Implementors
impl AddAssignRound<Float> for Float type Round = Round; type Ordering = Ordering;
impl<'a> AddAssignRound<&'a Float> for Float type Round = Round; type Ordering = Ordering;
impl AddAssignRound<Integer> for Float type Round = Round; type Ordering = Ordering;
impl<'a> AddAssignRound<&'a Integer> for Float type Round = Round; type Ordering = Ordering;
impl AddAssignRound<Rational> for Float type Round = Round; type Ordering = Ordering;
impl<'a> AddAssignRound<&'a Rational> for Float type Round = Round; type Ordering = Ordering;
impl AddAssignRound<i32> for Float type Round = Round; type Ordering = Ordering;
impl AddAssignRound<u32> for Float type Round = Round; type Ordering = Ordering;
impl AddAssignRound<f32> for Float type Round = Round; type Ordering = Ordering;
impl AddAssignRound<f64> for Float type Round = Round; type Ordering = Ordering;
impl<'a> AddAssignRound<MulRef<'a>> for Float type Round = Round; type Ordering = Ordering;
impl AddAssignRound<Complex> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl<'a> AddAssignRound<&'a Complex> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl AddAssignRound<Float> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl<'a> AddAssignRound<&'a Float> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl AddAssignRound<u32> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl AddAssignRound<i32> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl<'a> AddAssignRound<MulRef<'a>> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);