Trait rug::ops::AddFromRound

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

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

Associated Types

type Round

The rounding method.

type Ordering

The direction from rounding.

Required Methods

fn add_from_round(&mut self, lhs: Lhs, round: Self::Round) -> Self::Ordering

Performs the addition.

Examples

use rug::Float;
use rug::float::Round;
use rug::ops::AddFromRound;
use std::cmp::Ordering;
// only four significant bits
let mut f = Float::with_val(4, -0.3);
let dir = f.add_from_round(-3, Round::Nearest);
// -3.3 rounded up to -3.25
assert_eq!(f, -3.25);
assert_eq!(dir, Ordering::Greater);

Implementors

• impl<'a> AddFromRound<Float> for Float
• impl<'a> AddFromRound<&'a Float> for Float
• impl AddFromRound<Integer> for Float
• impl<'a> AddFromRound<&'a Integer> for Float
• impl AddFromRound<Rational> for Float
• impl<'a> AddFromRound<&'a Rational> for Float
• impl<'a> AddFromRound<i32> for Float
• impl<'a> AddFromRound<u32> for Float
• impl<'a> AddFromRound<f32> for Float
• impl<'a> AddFromRound<f64> for Float
• impl<'a> AddFromRound<MulRef<'a>> for Float
• impl<'a> AddFromRound<Complex> for Complex
• impl<'a> AddFromRound<&'a Complex> for Complex
• impl AddFromRound<Float> for Complex
• impl<'a> AddFromRound<&'a Float> for Complex
• impl<'a> AddFromRound<u32> for Complex
• impl<'a> AddFromRound<i32> for Complex
• impl<'a> AddFromRound<MulRef<'a>> for Complex