结构体 Rational 

pub struct Rational(pub i32, pub i32);

Tuple Fields

0: i32

1: i32

实现

impl Rational

pub fn new(numerator: i32, denominator: i32) -> Self

pub fn numerator(&self) -> i32

pub fn denominator(&self) -> i32

pub fn reduce(&self) -> Rational

pub fn reduce_with_limit(&self, max: i32) -> Result<Rational, Rational>

pub fn invert(&self) -> Rational

trait 实现

impl Add for Rational

type Output = Rational

The resulting type after applying the + operator.

fn add(self, other: Rational) -> Rational

Performs the + operation. 阅读更多

impl Clone for Rational

fn clone(&self) -> Rational

Returns a duplicate of the value. 阅读更多

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

从 source 执行拷贝赋值。 阅读更多

impl Debug for Rational

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

使用给定的格式化器格式化该值。 阅读更多

impl Display for Rational

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

使用给定的格式化器格式化该值。 阅读更多

impl Div for Rational

type Output = Rational

The resulting type after applying the / operator.

fn div(self, other: Rational) -> Rational

Performs the / operation. 阅读更多

impl From<(i32, i32)> for Rational

fn from((num, den): (i32, i32)) -> Rational

Converts to this type from the input type.

impl From<AVRational> for Rational

fn from(value: AVRational) -> Rational

Converts to this type from the input type.

impl From<Rational> for AVRational

fn from(value: Rational) -> AVRational

Converts to this type from the input type.

impl From<Rational> for f64

fn from(value: Rational) -> f64

Converts to this type from the input type.

impl From<Rational> for u32

fn from(value: Rational) -> u32

Converts to this type from the input type.

impl From<f64> for Rational

fn from(value: f64) -> Rational

Converts to this type from the input type.

impl Mul for Rational

type Output = Rational

The resulting type after applying the * operator.

fn mul(self, other: Rational) -> Rational

Performs the * operation. 阅读更多

impl PartialEq for Rational

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

Tests for self and other values to be equal, and is used by ==.

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

测试 !=。默认实现几乎总是足够的，没有充分理由不应被重写。

impl PartialOrd for Rational

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

如果存在的话，该方法返回 self 与 other 之间的顺序。 阅读更多

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

测试小于（对于 self 与 other），由 < 运算符使用。 阅读更多

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

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

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

测试大于（对于 self 与 other），由 > 运算符使用。 阅读更多

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

测试大于等于（对于 self 与 other），由 >= 运算符使用。 阅读更多

impl Sub for Rational

type Output = Rational

The resulting type after applying the - operator.

fn sub(self, other: Rational) -> Rational

Performs the - operation. 阅读更多

impl Copy for Rational

impl Eq for Rational