Struct PreparedDivisor 

pub struct PreparedDivisor<R>
where
    R: ?Sized + RingBase + DivisibilityRing,
{
    pub element: R::Element,
    pub data: R::PreparedDivisorData,
}

Struct for ring elements that are stored with associated data to enable faster divisions.

For details, see DivisibilityRing::prepare_divisor().

Fields

element: R::Element

This PreparedDivisor can perform the division by this element

data: R::PreparedDivisorData

Additional data used to compute the division by the stored element more efficiently

Implementations

impl<R> PreparedDivisor<R>

where R: ?Sized + RingBase + DivisibilityRing,

pub fn new(ring: &R, el: R::Element) -> Self

Creates a new PreparedDivisor from the given ring element, obtaining any additional data by calling DivisibilityRing::prepare_divisor().

pub fn checked_left_div_by( &self, lhs: &R::Element, ring: &R, ) -> Option<R::Element>

Computes some q such that q * self == lhs, if it exists.

If the underlying ring supports it, this uses precomputed data and thus can be faster than DivisibilityRing::checked_left_div().

Trait Implementations

impl<R> Clone for PreparedDivisor<R>

where R: ?Sized + RingBase + DivisibilityRing, R::Element: Clone, R::PreparedDivisorData: Clone,

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<R> Copy for PreparedDivisor<R>

where R: ?Sized + RingBase + DivisibilityRing, R::Element: Copy, R::PreparedDivisorData: Copy,

impl<R> Debug for PreparedDivisor<R>

where R: ?Sized + RingBase + DivisibilityRing, R::Element: Debug, R::PreparedDivisorData: Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.