Struct approx::Ulps [−][src]
The requisite parameters for testing for approximate equality using an ULPs based comparison.
This is not normally used directly, rather via the assert_ulps_{eq|ne}!
and ulps_{eq|ne}!
macros.
Example
use std::f64; use approx::Ulps; Ulps::default().eq(&1.0, &1.0); Ulps::default().epsilon(f64::EPSILON).eq(&1.0, &1.0); Ulps::default().max_ulps(4).eq(&1.0, &1.0); Ulps::default().epsilon(f64::EPSILON).max_ulps(4).eq(&1.0, &1.0); Ulps::default().max_ulps(4).epsilon(f64::EPSILON).eq(&1.0, &1.0);
Fields
epsilon: T::Epsilon
The tolerance to use when testing values that are close together.
max_ulps: u32
The ULPs to tolerate when testing values that are far-apart.
Methods
impl<T: UlpsEq + ?Sized> Ulps<T>
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impl<T: UlpsEq + ?Sized> Ulps<T>
pub fn epsilon(self, epsilon: T::Epsilon) -> Ulps<T>
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pub fn epsilon(self, epsilon: T::Epsilon) -> Ulps<T>
Replace the epsilon value with the one specified.
pub fn max_ulps(self, max_ulps: u32) -> Ulps<T>
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pub fn max_ulps(self, max_ulps: u32) -> Ulps<T>
Replace the max ulps value with the one specified.
pub fn eq(self, lhs: &T, rhs: &T) -> bool
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pub fn eq(self, lhs: &T, rhs: &T) -> bool
Peform the equality comparison
pub fn ne(self, lhs: &T, rhs: &T) -> bool
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pub fn ne(self, lhs: &T, rhs: &T) -> bool
Peform the inequality comparison