[][src]Struct sp_arithmetic::rational::Rational128

pub struct Rational128(_, _);

A wrapper for any rational number with a 128 bit numerator and denominator.

Implementations

impl Rational128[src]

pub fn zero() -> Self[src]

Zero.

pub fn one() -> Self[src]

One

pub fn is_zero(&self) -> bool[src]

If it is zero or not

pub fn from(n: u128, d: u128) -> Self[src]

Build from a raw n/d.

pub fn from_unchecked(n: u128, d: u128) -> Self[src]

Build from a raw n/d. This could lead to / 0 if not properly handled.

pub fn n(&self) -> u128[src]

Return the numerator.

pub fn d(&self) -> u128[src]

Return the denominator.

pub fn to_den(self, den: u128) -> Result<Self, &'static str>[src]

Convert self to a similar rational number where denominator is the given den. This only returns if the result is accurate. Err is returned if the result cannot be accurately calculated.

pub fn lcm(&self, other: &Self) -> Result<u128, &'static str>[src]

Get the least common divisor of self and other.

This only returns if the result is accurate. Err is returned if the result cannot be accurately calculated.

pub fn lazy_saturating_add(self, other: Self) -> Self[src]

A saturating add that assumes self and other have the same denominator.

pub fn lazy_saturating_sub(self, other: Self) -> Self[src]

A saturating subtraction that assumes self and other have the same denominator.

pub fn checked_add(self, other: Self) -> Result<Self, &'static str>[src]

Addition. Simply tries to unify the denominators and add the numerators.

Overflow might happen during any of the steps. Error is returned in such cases.

pub fn checked_sub(self, other: Self) -> Result<Self, &'static str>[src]

Subtraction. Simply tries to unify the denominators and subtract the numerators.

Overflow might happen during any of the steps. None is returned in such cases.

Trait Implementations

impl Bounded for Rational128[src]

impl Clone for Rational128[src]

impl Copy for Rational128[src]

impl Debug for Rational128[src]

impl Default for Rational128[src]

impl Eq for Rational128[src]

impl From<Rational128> for RationalInfinite[src]

impl<T: Into<u128>> From<T> for Rational128[src]

impl Ord for Rational128[src]

impl PartialEq<Rational128> for Rational128[src]

impl PartialOrd<Rational128> for Rational128[src]

impl StructuralEq for Rational128[src]

Auto Trait Implementations

impl RefUnwindSafe for Rational128

impl Send for Rational128

impl Sync for Rational128

impl Unpin for Rational128

impl UnwindSafe for Rational128

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
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impl<T> Borrow<T> for T where
    T: ?Sized
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impl<T> BorrowMut<T> for T where
    T: ?Sized
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impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<T> SaturatedConversion for T[src]

impl<T> ToOwned for T where
    T: Clone
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type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T, S> UniqueSaturatedFrom<T> for S where
    S: TryFrom<T> + Bounded
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impl<T, S> UniqueSaturatedInto<T> for S where
    S: TryInto<T>,
    T: Bounded
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