Struct Ratio 

pub struct Ratio(/* private fields */);

Decimal constrained to 0 <= x <= 1.

Implementations

impl Ratio

pub fn new(value: Decimal) -> Result<Self, DecimalConstraintError>

Builds a ratio.

Errors

Returns DecimalConstraintError when value < 0 or value > 1.

pub const fn as_decimal(&self) -> &Decimal

Returns the wrapped decimal by reference.

pub const fn into_inner(self) -> Decimal

Available on non-crate feature bigdecimal only.

Returns the wrapped decimal.

Trait Implementations

impl AsRef<Decimal> for Ratio

fn as_ref(&self) -> &Decimal

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

impl Clone for Ratio

fn clone(&self) -> Ratio

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Ratio

impl Debug for Ratio

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

Formats the value using the given formatter.

impl Decimal128Mantissa for Ratio

fn try_to_i128_mantissa(&self, target_scale: u32) -> Option<i128>

Returns the mantissa after rescaling to target_scale, or None when the result exceeds decimal128 precision or the active backend cannot represent the conversion.

impl<'de> Deserialize<'de> for Ratio

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Ratio

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

Formats the value using the given formatter.

impl Eq for Ratio

impl From<Ratio> for Decimal

fn from(value: Ratio) -> Self

Converts to this type from the input type.

impl From<Ratio> for NonNegativeDecimal

fn from(value: Ratio) -> Self

Converts to this type from the input type.

impl PartialEq for Ratio

fn eq(&self, other: &Ratio) -> 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 Ratio

fn partial_cmp(&self, other: &Ratio) -> 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 Serialize for Ratio

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Ratio

impl TryFrom<Decimal> for Ratio

type Error = DecimalConstraintError

The type returned in the event of a conversion error.

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

Performs the conversion.