Struct proof_of_sql::base::math::decimal::Decimal

pub struct Decimal<S: Scalar> {
    pub value: S,
    pub precision: Precision,
    pub scale: i8,
}

A decimal type that is parameterized by the scalar type

Fields

value: S

The raw value of the decimal as scalar

precision: Precision

The precision of the decimal

scale: i8

The scale of the decimal

Implementations

impl<S: Scalar> Decimal<S>

pub fn new(value: S, precision: Precision, scale: i8) -> Self

Constructor for creating a Decimal instance

pub fn with_precision_and_scale( &self, new_precision: Precision, new_scale: i8, ) -> Result<Decimal<S>, ConversionError>

Scale the decimal to the new scale factor. Negative scaling and overflow error out.

pub fn from_i64( value: i64, precision: Precision, scale: i8, ) -> Result<Self, ConversionError>

Get a decimal with given precision and scale from an i64

pub fn from_i128( value: i128, precision: Precision, scale: i8, ) -> Result<Self, ConversionError>

Get a decimal with given precision and scale from an i128

Trait Implementations

impl<S: Clone + Scalar> Clone for Decimal<S>

fn clone(&self) -> Decimal<S>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<S: Debug + Scalar> Debug for Decimal<S>

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

Formats the value using the given formatter.

impl<S: Hash + Scalar> Hash for Decimal<S>

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<S: PartialEq + Scalar> PartialEq for Decimal<S>

fn eq(&self, other: &Decimal<S>) -> 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<S> Serialize for Decimal<S>

where S: Serialize + Scalar,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<S: Eq + Scalar> Eq for Decimal<S>

impl<S: Scalar> StructuralPartialEq for Decimal<S>