Enum scrypto::prelude::RoundingMode

pub enum RoundingMode {
    ToPositiveInfinity,
    ToNegativeInfinity,
    ToZero,
    AwayFromZero,
    ToNearestMidpointTowardZero,
    ToNearestMidpointAwayFromZero,
    ToNearestMidpointToEven,
}

Defines the rounding strategy.

Following the same naming convention as https://docs.rs/rust_decimal/latest/rust_decimal/enum.RoundingStrategy.html.

Variants

ToPositiveInfinity

The number is always rounded toward positive infinity, e.g. 3.1 -> 4, -3.1 -> -3.

ToNegativeInfinity

The number is always rounded toward negative infinity, e.g. 3.1 -> 3, -3.1 -> -4.

ToZero

The number is always rounded toward zero, e.g. 3.1 -> 3, -3.1 -> -3.

AwayFromZero

The number is always rounded away from zero, e.g. 3.1 -> 4, -3.1 -> -4.

ToNearestMidpointTowardZero

The number is rounded to the nearest, and when it is halfway between two others, it’s rounded toward zero, e.g. 3.5 -> 3, -3.5 -> -3.

ToNearestMidpointAwayFromZero

The number is rounded to the nearest, and when it is halfway between two others, it’s rounded away from zero, e.g. 3.5 -> 4, -3.5 -> -4.

ToNearestMidpointToEven

The number is rounded to the nearest, and when it is halfway between two others, it’s rounded toward the nearest even number. Also known as “Bankers Rounding”.

Trait Implementations

impl<X> Categorize<X> for RoundingMode

where X: CustomValueKind,

fn value_kind() -> ValueKind<X>

impl Clone for RoundingMode

fn clone(&self) -> RoundingMode

Returns a copy 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<(), Error>

Formats the value using the given formatter.

impl<D, X> Decode<X, D> for RoundingMode

where D: Decoder<X>, X: CustomValueKind,

fn decode_body_with_value_kind( decoder: &mut D, value_kind: ValueKind<X> ) -> Result<RoundingMode, DecodeError>

Decodes the type from the decoder, which should match a preloaded value kind.

impl<C> Describe<C> for RoundingMode

where C: CustomTypeKind<RustTypeId>,

const TYPE_ID: RustTypeId = _

The TYPE_ID should give a unique identifier for its SBOR schema type. An SBOR schema type capture details about the SBOR payload, how it should be interpreted, validated and displayed.

fn type_data() -> TypeData<C, RustTypeId>

Returns the local schema for the given type.

fn add_all_dependencies(aggregator: &mut TypeAggregator<C>)

For each type referenced in get_local_type_data, we need to ensure that the type and all of its own references get added to the aggregator.

impl<E, X> Encode<X, E> for RoundingMode

where E: Encoder<X>, X: CustomValueKind,

fn encode_value_kind(&self, encoder: &mut E) -> Result<(), EncodeError>

Encodes the SBOR value’s kind to the encoder

fn encode_body(&self, encoder: &mut E) -> Result<(), EncodeError>

Encodes the SBOR body of the type to the encoder.

impl PartialEq for RoundingMode

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

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

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

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

impl<X> SborEnum<X> for RoundingMode

where X: CustomValueKind,

fn get_discriminator(&self) -> u8

fn get_length(&self) -> usize

impl Copy for RoundingMode

impl Eq for RoundingMode

impl StructuralPartialEq for RoundingMode