Struct Decimal

pub struct Decimal { /* private fields */ }

Decimal number.

Internally a decimal number is represented as a BigRational with a finite decimal representation.

Implementations

impl Decimal

pub unsafe fn new_unchecked(r: BigRational) -> Self

Creates a new decimal number from a rational number.

Safety

The input rational number must have a finite decimal representation.

pub fn as_big_rational(&self) -> &BigRational

pub fn into_big_rational(self) -> BigRational

pub fn zero() -> Self

pub fn is_zero(&self) -> bool

pub fn is_positive(&self) -> bool

pub fn is_negative(&self) -> bool

pub fn as_integer(&self) -> Option<&Integer>

pub fn into_integer(self) -> Option<Integer>

pub fn decimal_type(&self) -> DecimalDatatype

pub fn lexical_representation(&self) -> &DecimalBuf

pub fn as_f64(&self) -> Option<f64>

pub fn as_f32(&self) -> Option<f32>

pub fn as_float(&self) -> Option<Float>

pub fn as_double(&self) -> Option<Double>

Trait Implementations

impl AsRef<Ratio<BigInt>> for Decimal

fn as_ref(&self) -> &BigRational

Converts this type into a shared reference of the (usually inferred) input type.

impl Borrow<Ratio<BigInt>> for Decimal

fn borrow(&self) -> &BigRational

Immutably borrows from an owned value.

impl Clone for Decimal

fn clone(&self) -> Decimal

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Decimal

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

Formats the value using the given formatter.

impl Display for Decimal

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

Formats the value using the given formatter.

impl<'a> From<&'a Decimal> for Decimal

fn from(value: &'a Decimal) -> Self

Converts to this type from the input type.

impl From<BigInt> for Decimal

fn from(value: BigInt) -> Self

Converts to this type from the input type.

impl From<Decimal> for BigRational

fn from(value: Decimal) -> Self

Converts to this type from the input type.

impl From<DecimalBuf> for Decimal

fn from(value: DecimalBuf) -> Self

Converts to this type from the input type.

impl From<Integer> for Decimal

fn from(value: Integer) -> Self

Converts to this type from the input type.

impl From<i16> for Decimal

fn from(value: i16) -> Self

Converts to this type from the input type.

impl From<i32> for Decimal

fn from(value: i32) -> Self

Converts to this type from the input type.

impl From<i64> for Decimal

fn from(value: i64) -> Self

Converts to this type from the input type.

impl From<i8> for Decimal

fn from(value: i8) -> Self

Converts to this type from the input type.

impl From<isize> for Decimal

fn from(value: isize) -> Self

Converts to this type from the input type.

impl From<u16> for Decimal

fn from(value: u16) -> Self

Converts to this type from the input type.

impl From<u32> for Decimal

fn from(value: u32) -> Self

Converts to this type from the input type.

impl From<u64> for Decimal

fn from(value: u64) -> Self

Converts to this type from the input type.

impl From<u8> for Decimal

fn from(value: u8) -> Self

Converts to this type from the input type.

impl From<usize> for Decimal

fn from(value: usize) -> Self

Converts to this type from the input type.

impl FromStr for Decimal

type Err = InvalidDecimal

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for Decimal

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 LexicalFormOf<Decimal> for Decimal

type ValueError = Infallible

fn try_as_value(&self) -> Result<Decimal, Self::ValueError>

fn as_value(&self) -> V

where Self: LexicalFormOf<V, ValueError = Infallible>,

impl Ord for Decimal

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl ParseXsd for Decimal

type LexicalForm = Decimal

fn parse_xsd(lexical_value: &str) -> ParseXsdResult<Self, Self::LexicalForm>

impl PartialEq for Decimal

fn eq(&self, other: &Self) -> 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 PartialOrd for Decimal

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'a> TryFrom<&'a Decimal> for i16

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: &'a Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl<'a> TryFrom<&'a Decimal> for i32

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: &'a Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl<'a> TryFrom<&'a Decimal> for i64

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: &'a Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl<'a> TryFrom<&'a Decimal> for i8

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: &'a Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl<'a> TryFrom<&'a Decimal> for isize

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: &'a Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl<'a> TryFrom<&'a Decimal> for u16

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: &'a Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl<'a> TryFrom<&'a Decimal> for u32

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: &'a Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl<'a> TryFrom<&'a Decimal> for u64

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: &'a Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl<'a> TryFrom<&'a Decimal> for u8

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: &'a Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl<'a> TryFrom<&'a Decimal> for usize

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: &'a Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl TryFrom<Decimal> for Double

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: Decimal) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Decimal> for Float

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: Decimal) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Decimal> for f32

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: Decimal) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Decimal> for f64

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: Decimal) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Decimal> for i16

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl TryFrom<Decimal> for i32

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl TryFrom<Decimal> for i64

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl TryFrom<Decimal> for i8

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl TryFrom<Decimal> for isize

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl TryFrom<Decimal> for u16

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl TryFrom<Decimal> for u32

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl TryFrom<Decimal> for u64

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl TryFrom<Decimal> for u8

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl TryFrom<Decimal> for usize

type Error = FromDecimalError

The type returned in the event of a conversion error.

fn try_from(value: Decimal) -> Result<Self, FromDecimalError>

Performs the conversion.

impl TryFrom<Double> for Decimal

type Error = NonDecimalFloat

The type returned in the event of a conversion error.

fn try_from(value: Double) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Float> for Decimal

type Error = NonDecimalFloat

The type returned in the event of a conversion error.

fn try_from(value: Float) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Ratio<BigInt>> for Decimal

type Error = NoDecimalRepresentation

The type returned in the event of a conversion error.

fn try_from(value: BigRational) -> Result<Self, Self::Error>

Performs the conversion.

impl XsdValue for Decimal

fn datatype(&self) -> Datatype

Returns the XSD datatype that best describes the value.

impl Deref for Decimal

type Target = Ratio<BigInt>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Eq for Decimal