[src]

Enum std::iter::MinMaxResult

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

MinMaxResult is an enum returned by min_max. See OrdIterator::min_max for more detail.

Variants

NoElements

Empty iterator

OneElement

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

MinMax

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

Methods

impl<T: Clone> MinMaxResult<T>

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 variant Some(x,y) is returned where x <= y. If MinMaxResult has variant OneElement(x), performing this operation will make one clone of x.

Example

use std::iter::{NoElements, OneElement, MinMax, MinMaxResult};

let r: MinMaxResult<int> = 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

Derived Implementations

impl<T: Show> Show for MinMaxResult<T>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<T: Eq> Eq for MinMaxResult<T>

fn eq(&self, __arg_0: &MinMaxResult<T>) -> bool

fn ne(&self, __arg_0: &MinMaxResult<T>) -> bool

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

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

Returns a copy of the value. The contents of owned pointers are copied to maintain uniqueness, while the contents of managed pointers are not copied.

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

Perform copy-assignment from source.

a.clone_from(&b) is equivalent to a = b.clone() in functionality, but can be overridden to reuse the resources of a to avoid unnecessary allocations.