Trait approx::UlpsEq

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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 { ... } }
Expand description

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

Required Methods§

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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.

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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§

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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§

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impl UlpsEq for f32

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fn default_max_ulps() -> u32

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

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impl UlpsEq for f64

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fn default_max_ulps() -> u32

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

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

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fn default_max_ulps() -> u32

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

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

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fn default_max_ulps() -> u32

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

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impl<A, B> UlpsEq<[B]> for [A]
where A: UlpsEq<B>, A::Epsilon: Clone,

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fn default_max_ulps() -> u32

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

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

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fn default_max_ulps() -> u32

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

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

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fn default_max_ulps() -> u32

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

Implementors§