Struct Date 

pub struct Date {
    pub year: i32,
    pub month: u32,
    pub day: u32,
}

A simple calendar date (year, month, day) in the Gregorian calendar.

Fields

year: i32

month: u32

day: u32

Implementations

impl Date

pub fn new(year: i32, month: u32, day: u32) -> Option<Self>

Creates a new date, validating month (1..=12) and day (1..=days_in_month).

pub fn is_leap_year(year: i32) -> bool

pub fn days_in_month(year: i32, month: u32) -> u32

pub fn to_day_number(&self) -> i64

Converts the date into an ordinal day count (days since 0001-01-01).

pub fn days_until(&self, other: &Date) -> i64

Returns the number of actual elapsed calendar days from self to other (other - self).

pub fn weekday(&self) -> Weekday

The weekday this date falls on.

pub fn is_month_end(&self) -> bool

Whether this is the last day of its month.

pub fn add_months(&self, months: i32) -> Date

Shifts by whole months, clamping the day to the length of the target month: 31 August minus six months is 28 (or 29) February, not an invalid 31 February.

Clamping is not the same as the month-end rule — see CouponSchedule, which applies that rule on top when the anchor date is itself a month end.

pub fn add_days(&self, days: i64) -> Date

Shifts by whole calendar days.

pub fn to_month_end(&self) -> Date

Moves to the last day of its month.

Trait Implementations

impl Clone for Date

fn clone(&self) -> Date

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Date

impl Debug for Date

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Date

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Date

impl Hash for Date

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 Ord for Date

fn cmp(&self, other: &Date) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

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

Restrict a value to a certain range.

impl PartialEq for Date

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Date

fn partial_cmp(&self, other: &Date) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for Date

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Date