Struct People 

pub struct People { /* private fields */ }

Abstraction over all the people you may want to pair up. Give it a impl Read, like a file, to get People back.

Example:

let f = File::open("people.csv")?;
let people = People::from_csv(f)?;

Implementations

impl People

pub fn from_csv<R: Read>(input: R) -> Result<Self, BuddyError>

Reads people from a CSV file and creates a People struct from that. The expected format is rows of people like id,name.

Example CSV:

1,John
2,David

If the given input doesn’t contain an even number of people, we will add our own with id usize::MAX, so that id is reserved. Having that extra user to make it even will keep the algorithm working, so that someone will be “paired up” with our evenizer, which really means that person won’t get paired. The beautiful thing is that the algorithm will try and not repeat pairs, which now includes the evenizer, so the same person will not end up getting not paired all the time.

pub fn len(&self) -> usize

pub fn has_evenizer(&self) -> bool

Whether this People set has our evenizer user to make the count even.

pub fn is_empty(&self) -> bool

Trait Implementations

impl Clone for People

fn clone(&self) -> People

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for People

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

Formats the value using the given formatter.

impl Default for People

fn default() -> People

Returns the “default value” for a type.