Trait rug::ops::PowAssignRound
[−]
[src]
pub trait PowAssignRound<Rhs = Self> { type Round; type Ordering; fn pow_assign_round(
&mut self,
rhs: Rhs,
round: Self::Round
) -> Self::Ordering; }
Compound power operation and assignment with a specified rounding method.
Examples
use rug::Float; use rug::float::Round; use rug::ops::PowAssignRound; use std::cmp::Ordering; struct F(f64); impl PowAssignRound<f64> for F { type Round = Round; type Ordering = Ordering; fn pow_assign_round(&mut self, rhs: f64, round: Round) -> Ordering { let mut f = Float::with_val(53, self.0); let dir = f.pow_assign_round(rhs, round); self.0 = f.to_f64(); dir } } let mut f = F(3.0); let dir = f.pow_assign_round(5.0, Round::Nearest); // 3.0 ^ 5.0 = 243.0 assert_eq!(f.0, 243.0); assert_eq!(dir, Ordering::Equal);
Associated Types
Required Methods
fn pow_assign_round(&mut self, rhs: Rhs, round: Self::Round) -> Self::Ordering
Performs the power operation.
Examples
use rug::Float; use rug::float::Round; use rug::ops::PowAssignRound; use std::cmp::Ordering; // only four significant bits let mut f = Float::with_val(4, -3); let dir = f.pow_assign_round(5, Round::Nearest); // -243 rounded up to -240 assert_eq!(f, -240); assert_eq!(dir, Ordering::Greater);
Implementors
impl PowAssignRound<Float> for Float type Round = Round; type Ordering = Ordering;
impl<'a> PowAssignRound<&'a Float> for Float type Round = Round; type Ordering = Ordering;
impl PowAssignRound<Integer> for Float type Round = Round; type Ordering = Ordering;
impl<'a> PowAssignRound<&'a Integer> for Float type Round = Round; type Ordering = Ordering;
impl PowAssignRound<u32> for Float type Round = Round; type Ordering = Ordering;
impl<'t> PowAssignRound<&'t u32> for Float type Round = Round; type Ordering = Ordering;
impl PowAssignRound<i32> for Float type Round = Round; type Ordering = Ordering;
impl<'t> PowAssignRound<&'t i32> for Float type Round = Round; type Ordering = Ordering;
impl PowAssignRound<f64> for Float type Round = Round; type Ordering = Ordering;
impl<'t> PowAssignRound<&'t f64> for Float type Round = Round; type Ordering = Ordering;
impl PowAssignRound<f32> for Float type Round = Round; type Ordering = Ordering;
impl<'t> PowAssignRound<&'t f32> for Float type Round = Round; type Ordering = Ordering;
impl PowAssignRound<Complex> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl<'a> PowAssignRound<&'a Complex> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl PowAssignRound<Float> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl<'a> PowAssignRound<&'a Float> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl PowAssignRound<Integer> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl<'a> PowAssignRound<&'a Integer> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl PowAssignRound<u32> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl<'t> PowAssignRound<&'t u32> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl PowAssignRound<i32> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl<'t> PowAssignRound<&'t i32> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl PowAssignRound<f64> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl<'t> PowAssignRound<&'t f64> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl PowAssignRound<f32> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);
impl<'t> PowAssignRound<&'t f32> for Complex type Round = (Round, Round); type Ordering = (Ordering, Ordering);