Struct Rat 

pub struct Rat { /* private fields */ }

Implementations

impl Rat

pub fn new(n: i128, d: i128) -> Rat

pub fn int(v: i64) -> Rat

pub fn from_u64(v: u64) -> Rat

pub fn mul(self, o: Rat) -> Rat

pub fn div(self, o: Rat) -> Rat

pub fn add(self, o: Rat) -> Rat

pub fn sub(self, o: Rat) -> Rat

pub fn pow10(exp: i64) -> Rat

10^exp as an exact rational (|exp| <= 38 fits i128; clamp beyond).

pub fn round(self) -> i64

Round to nearest integer, half away from zero (matches Go ratRound).

pub fn to_f64(self) -> f64

pub fn from_f64(v: f64) -> Rat

Parse an f64 into an exact rational via its shortest decimal display (keeps typical engineering values like 230.1 exact). Fallback: rounded.

Trait Implementations

impl Clone for Rat

fn clone(&self) -> Rat

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Rat

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

Formats the value using the given formatter.

impl PartialEq for Rat

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

impl Eq for Rat

impl StructuralPartialEq for Rat