Enum rustc_apfloat::ieee::Loss

#[must_use]pub(in ieee) enum Loss {
    ExactlyZero,
    LessThanHalf,
    ExactlyHalf,
    MoreThanHalf,
}

Enum that represents what fraction of the LSB truncated bits of an fp number represent.

This essentially combines the roles of guard and sticky bits.

Variants

ExactlyZero

LessThanHalf

ExactlyHalf

MoreThanHalf

Implementations

impl Loss

pub(in ieee) fn combine(
    self,
    less_significant: Loss
) -> Loss

Combine the effect of two lost fractions.

pub(in ieee) fn through_truncation(
    limbs: &[u128],
    bits: usize
) -> Loss

Returns the fraction lost were a bignum truncated losing the least significant bits bits.

Trait Implementations

impl Clone for Loss

pub fn clone(&self) -> Loss

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Loss

impl Debug for Loss

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

Formats the value using the given formatter.

impl Eq for Loss

impl PartialEq<Loss> for Loss

pub fn eq(&self, other: &Loss) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl StructuralEq for Loss

impl StructuralPartialEq for Loss