Enum Era

pub enum Era {
    BCE,
    CE,
}

The era corresponding to a particular year.

The BCE era corresponds to years less than or equal to 0, while the CE era corresponds to years greater than 0.

In particular, this crate allows years to be negative and also to be 0, which is contrary to the common practice of excluding the year 0 when writing dates for the Gregorian calendar. Moreover, common practice eschews negative years in favor of labeling a year with an era notation. That is, the year 1 BCE is year 0 in this crate. The year 2 BCE is the year -1 in this crate.

To get the year in its era format, use Date::era_year.

Variants

BCE

The “before common era” era.

This corresponds to all years less than or equal to 0.

This is precisely equivalent to the “BC” or “before Christ” era.

CE

The “common era” era.

This corresponds to all years greater than 0.

This is precisely equivalent to the “AD” or “anno Domini” or “in the year of the Lord” era.

Trait Implementations

impl Clone for Era

fn clone(&self) -> Era

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Era

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

Formats the value using the given formatter.

impl Hash for Era

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Era

fn eq(&self, other: &Era) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Era

impl Eq for Era

impl StructuralPartialEq for Era