Trait rug::ops::SubFromRound
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[src]
pub trait SubFromRound<Lhs = Self> { type Round; type Ordering; fn sub_from_round(&mut self, lhs: Lhs, round: Self::Round) -> Self::Ordering; }
Compound subtraction and assignment to the rhs operand with a specified rounding method.
Associated Types
Required Methods
fn sub_from_round(&mut self, lhs: Lhs, round: Self::Round) -> Self::Ordering
Performs the subtraction.
Examples
use rug::Float; use rug::float::Round; use rug::ops::SubFromRound; use std::cmp::Ordering; // only four significant bits let mut f = Float::with_val(4, 0.3); let dir = f.sub_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> SubFromRound<Float> for Float
impl<'a> SubFromRound<&'a Float> for Float
impl SubFromRound<Integer> for Float
impl<'a> SubFromRound<&'a Integer> for Float
impl SubFromRound<Rational> for Float
impl<'a> SubFromRound<&'a Rational> for Float
impl SubFromRound<i32> for Float
impl SubFromRound<u32> for Float
impl SubFromRound<f32> for Float
impl SubFromRound<f64> for Float
impl<'a> SubFromRound<MulRef<'a>> for Float
impl<'a> SubFromRound<Complex> for Complex
impl<'a> SubFromRound<&'a Complex> for Complex
impl SubFromRound<Float> for Complex
impl<'a> SubFromRound<&'a Float> for Complex
impl SubFromRound<u32> for Complex
impl SubFromRound<i32> for Complex
impl<'a> SubFromRound<MulRef<'a>> for Complex