Enum itertools::MinMaxResult

source · [−]

pub enum MinMaxResult<T> {
    NoElements,
    OneElement(T),
    MinMax(T, T),
}

Expand description

MinMaxResult is an enum returned by minmax.

See .minmax() for more detail.

Variants

`NoElements`

Empty iterator

`OneElement(T)`

Iterator with one element, so the minimum and maximum are the same

`MinMax(T, T)`

More than one element in the iterator, the first element is not larger than the second

Implementations

impl<T: Clone> MinMaxResult<T>

pub fn into_option(self) -> Option<(T, T)>

into_option creates an Option of type (T, T). The returned Option has variant None if and only if the MinMaxResult has variant NoElements. Otherwise Some((x, y)) is returned where x <= y. If the MinMaxResult has variant OneElement(x), performing this operation will make one clone of x.

Examples

use itertools::MinMaxResult::{self, NoElements, OneElement, MinMax};

let r: MinMaxResult<i32> = NoElements;
assert_eq!(r.into_option(), None);

let r = OneElement(1);
assert_eq!(r.into_option(), Some((1, 1)));

let r = MinMax(1, 2);
assert_eq!(r.into_option(), Some((1, 2)));

Trait Implementations

impl<T: Clone> Clone for MinMaxResult<T>

fn clone(&self) -> MinMaxResult<T>

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

impl<T: Debug> Debug for MinMaxResult<T>

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

Formats the value using the given formatter. Read more

impl<T: PartialEq> PartialEq<MinMaxResult<T>> for MinMaxResult<T>

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

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

fn ne(&self, other: &MinMaxResult<T>) -> bool

This method tests for !=.

impl<T: Copy> Copy for MinMaxResult<T>

impl<T> StructuralPartialEq for MinMaxResult<T>

Auto Trait Implementations

impl<T> RefUnwindSafe for MinMaxResult<T> where
T: RefUnwindSafe,

impl<T> Send for MinMaxResult<T> where
T: Send,

impl<T> Sync for MinMaxResult<T> where
T: Sync,

impl<T> Unpin for MinMaxResult<T> where
T: Unpin,

impl<T> UnwindSafe for MinMaxResult<T> where
T: UnwindSafe,

Blanket Implementations

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T where
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.

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

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

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

🔬 This is a nightly-only experimental API. (toowned_clone_into)

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

impl<T, U> TryFrom<U> for T where
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<U>>::Error>

Performs the conversion.

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

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

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.