Trait approx::UlpsEq

pub trait UlpsEq<Rhs = Self>: AbsDiffEq<Rhs>
where
    Rhs: ?Sized,
{
    // Required methods
    fn default_max_ulps() -> u32;
    fn ulps_eq(
        &self,
        other: &Rhs,
        epsilon: Self::Epsilon,
        max_ulps: u32
    ) -> bool;

    // Provided method
    fn ulps_ne(
        &self,
        other: &Rhs,
        epsilon: Self::Epsilon,
        max_ulps: u32
    ) -> bool { ... }
}

Equality comparisons between two numbers using both the absolute difference and ULPs (Units in Last Place) based comparisons.

Required Methods

fn default_max_ulps() -> u32

The default ULPs to tolerate when testing values that are far-apart.

This is used when no max_ulps value is supplied to the [ulps_eq] macro.

fn ulps_eq(&self, other: &Rhs, epsilon: Self::Epsilon, max_ulps: u32) -> bool

A test for equality that uses units in the last place (ULP) if the values are far apart.

Provided Methods

fn ulps_ne(&self, other: &Rhs, epsilon: Self::Epsilon, max_ulps: u32) -> bool

The inverse of UlpsEq::ulps_eq.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl UlpsEq for f32

fn default_max_ulps() -> u32

fn ulps_eq(&self, other: &f32, epsilon: f32, max_ulps: u32) -> bool

impl UlpsEq for f64

fn default_max_ulps() -> u32

fn ulps_eq(&self, other: &f64, epsilon: f64, max_ulps: u32) -> bool

impl<'a, T: UlpsEq + ?Sized> UlpsEq for &'a T

fn default_max_ulps() -> u32

fn ulps_eq(&self, other: &&'a T, epsilon: T::Epsilon, max_ulps: u32) -> bool

impl<'a, T: UlpsEq + ?Sized> UlpsEq for &'a mut T

fn default_max_ulps() -> u32

fn ulps_eq(&self, other: &&'a mut T, epsilon: T::Epsilon, max_ulps: u32) -> bool

impl<A, B> UlpsEq<[B]> for [A]

where A: UlpsEq<B>, A::Epsilon: Clone,

fn default_max_ulps() -> u32

fn ulps_eq(&self, other: &[B], epsilon: A::Epsilon, max_ulps: u32) -> bool

impl<T: UlpsEq + Copy> UlpsEq for Cell<T>

fn default_max_ulps() -> u32

fn ulps_eq(&self, other: &Cell<T>, epsilon: T::Epsilon, max_ulps: u32) -> bool

impl<T: UlpsEq + ?Sized> UlpsEq for RefCell<T>

fn default_max_ulps() -> u32

fn ulps_eq( &self, other: &RefCell<T>, epsilon: T::Epsilon, max_ulps: u32 ) -> bool

Implementors