Enum dashu_base::approx::Approximation

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pub enum Approximation<T, E> {
    Exact(T),
    Inexact(T, E),
}

Expand description

Represent an calculation result with a possible error.

Variants

`Exact(T)`

The result is exact, contains the result value

`Inexact(T, E)`

The result is inexact, contains the result value and error

Implementations

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impl<T, E> Approximation<T, E>

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pub fn value(self) -> T

Get the value of the calculation regardless of error

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pub fn value_ref(&self) -> &T

Get a reference to the calculation result

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pub fn error(&self) -> Option<&E>

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pub fn map<U, F>(self, f: F) -> Approximation<U, E>where
F: FnOnce(T) -> U,

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pub fn and_then<U, F>(self, f: F) -> Approximation<U, E>where
F: FnOnce(T) -> Approximation<U, E>,

Trait Implementations

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impl<T: Clone, E: Clone> Clone for Approximation<T, E>

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fn clone(&self) -> Approximation<T, E>

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

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impl<T: Debug, E: Debug> Debug for Approximation<T, E>

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

Formats the value using the given formatter. Read more

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impl<T: PartialEq, E: PartialEq> PartialEq<Approximation<T, E>> for Approximation<T, E>

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fn eq(&self, other: &Approximation<T, E>) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more

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impl<T, E> StructuralPartialEq for Approximation<T, E>

Auto Trait Implementations

impl<T, E> RefUnwindSafe for Approximation<T, E>where
E: RefUnwindSafe,
T: RefUnwindSafe,

impl<T, E> Send for Approximation<T, E>where
E: Send,
T: Send,

impl<T, E> Sync for Approximation<T, E>where
E: Sync,
T: Sync,

impl<T, E> Unpin for Approximation<T, E>where
E: Unpin,
T: Unpin,

impl<T, E> UnwindSafe for Approximation<T, E>where
E: UnwindSafe,
T: UnwindSafe,

Blanket Implementations

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impl<T> Any for Twhere
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for Twhere
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for Twhere
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T, U> TryFrom for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for Twhere
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Enum dashu_base::approx::Approximation

Variants

Exact(T)

Inexact(T, E)

Implementations

impl<T, E> Approximation<T, E>

pub fn value(self) -> T

pub fn value_ref(&self) -> &T

pub fn error(&self) -> Option<&E>

pub fn map<U, F>(self, f: F) -> Approximation<U, E>where F: FnOnce(T) -> U,

pub fn and_then<U, F>(self, f: F) -> Approximation<U, E>where F: FnOnce(T) -> Approximation<U, E>,

Trait Implementations

impl<T: Clone, E: Clone> Clone for Approximation<T, E>

fn clone(&self) -> Approximation<T, E>

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

impl<T: Debug, E: Debug> Debug for Approximation<T, E>

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

impl<T: PartialEq, E: PartialEq> PartialEq<Approximation<T, E>> for Approximation<T, E>

fn eq(&self, other: &Approximation<T, E>) -> bool

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

impl<T: Copy, E: Copy> Copy for Approximation<T, E>

impl<T: Eq, E: Eq> Eq for Approximation<T, E>

impl<T, E> StructuralEq for Approximation<T, E>

impl<T, E> StructuralPartialEq for Approximation<T, E>

Auto Trait Implementations

impl<T, E> RefUnwindSafe for Approximation<T, E>where E: RefUnwindSafe, T: RefUnwindSafe,

impl<T, E> Send for Approximation<T, E>where E: Send, T: Send,

impl<T, E> Sync for Approximation<T, E>where E: Sync, T: Sync,

impl<T, E> Unpin for Approximation<T, E>where E: Unpin, T: Unpin,

impl<T, E> UnwindSafe for Approximation<T, E>where E: UnwindSafe, T: UnwindSafe,

Blanket Implementations

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

`Exact(T)`

`Inexact(T, E)`

pub fn map<U, F>(self, f: F) -> Approximation<U, E>where
F: FnOnce(T) -> U,

pub fn and_then<U, F>(self, f: F) -> Approximation<U, E>where
F: FnOnce(T) -> Approximation<U, E>,

impl<T, E> RefUnwindSafe for Approximation<T, E>where
E: RefUnwindSafe,
T: RefUnwindSafe,

impl<T, E> Send for Approximation<T, E>where
E: Send,
T: Send,

impl<T, E> Sync for Approximation<T, E>where
E: Sync,
T: Sync,

impl<T, E> Unpin for Approximation<T, E>where
E: Unpin,
T: Unpin,

impl<T, E> UnwindSafe for Approximation<T, E>where
E: UnwindSafe,
T: UnwindSafe,

impl<T> Any for Twhere
T: 'static + ?Sized,

impl<T> Borrow<T> for Twhere
T: ?Sized,

impl<T> BorrowMut<T> for Twhere
T: ?Sized,

impl<T, U> Into<U> for Twhere
U: From<T>,

impl<T> ToOwned for Twhere
T: Clone,

impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,