Trait 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.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so 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