Enum RoundingMode 

pub enum RoundingMode {
    Down,
    Up,
    Floor,
    Ceiling,
    HalfUp,
    HalfDown,
    HalfEven,
}

How a Decimal resolves the digits it must drop when rounding to a smaller scale. HalfEven (banker’s rounding) is the money/finance default: the unbiased tie-break that does not drift a long column of sums upward.

Variants

Down

Toward zero (truncate).

Up

Away from zero.

Floor

Toward −∞.

Ceiling

Toward +∞.

HalfUp

Nearest; ties away from zero.

HalfDown

Nearest; ties toward zero.

HalfEven

Nearest; ties to the even neighbour (banker’s rounding).

Trait Implementations

impl Clone for RoundingMode

fn clone(&self) -> RoundingMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RoundingMode

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

Formats the value using the given formatter.

impl Hash for RoundingMode

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for RoundingMode

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for RoundingMode

impl Eq for RoundingMode

impl StructuralPartialEq for RoundingMode