Struct chrono::naive::IsoWeek
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pub struct IsoWeek { /* fields omitted */ }
ISO 8601 week.
This type, combined with Weekday
,
constitues the ISO 8601 week date.
One can retrieve this type from the existing Datelike
types
via the Datelike::iso_week
method.
Methods
impl IsoWeek
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pub fn year(&self) -> i32
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Returns the year number for this ISO week.
Example
use chrono::{NaiveDate, Datelike, Weekday}; let d = NaiveDate::from_isoywd(2015, 1, Weekday::Mon); assert_eq!(d.iso_week().year(), 2015);
This year number might not match the calendar year number. Continuing the example...
assert_eq!(d.year(), 2014); assert_eq!(d, NaiveDate::from_ymd(2014, 12, 29));
pub fn week(&self) -> u32
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Returns the ISO week number starting from 1.
The return value ranges from 1 to 53. (The last week of year differs by years.)
Example
use chrono::{NaiveDate, Datelike, Weekday}; let d = NaiveDate::from_isoywd(2015, 15, Weekday::Mon); assert_eq!(d.iso_week().week(), 15);
pub fn week0(&self) -> u32
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Returns the ISO week number starting from 0.
The return value ranges from 0 to 52. (The last week of year differs by years.)
Example
use chrono::{NaiveDate, Datelike, Weekday}; let d = NaiveDate::from_isoywd(2015, 15, Weekday::Mon); assert_eq!(d.iso_week().week0(), 14);
Trait Implementations
impl PartialEq for IsoWeek
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fn eq(&self, __arg_0: &IsoWeek) -> bool
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This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, __arg_0: &IsoWeek) -> bool
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This method tests for !=
.
impl Eq for IsoWeek
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impl PartialOrd for IsoWeek
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fn partial_cmp(&self, __arg_0: &IsoWeek) -> Option<Ordering>
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This method returns an ordering between self
and other
values if one exists. Read more
fn lt(&self, __arg_0: &IsoWeek) -> bool
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This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, __arg_0: &IsoWeek) -> bool
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This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, __arg_0: &IsoWeek) -> bool
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This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, __arg_0: &IsoWeek) -> bool
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This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl Ord for IsoWeek
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fn cmp(&self, __arg_0: &IsoWeek) -> Ordering
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This method returns an Ordering
between self
and other
. Read more
fn max(self, other: Self) -> Self
1.21.0[src]
Compares and returns the maximum of two values. Read more
fn min(self, other: Self) -> Self
1.21.0[src]
Compares and returns the minimum of two values. Read more
impl Copy for IsoWeek
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impl Clone for IsoWeek
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fn clone(&self) -> IsoWeek
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0[src]
Performs copy-assignment from source
. Read more
impl Debug for IsoWeek
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The Debug
output of the ISO week w
is same to
d.format("%G-W%V")
where d
is any NaiveDate
value in that week.
Example
use chrono::{NaiveDate, Datelike}; assert_eq!(format!("{:?}", NaiveDate::from_ymd(2015, 9, 5).iso_week()), "2015-W36"); assert_eq!(format!("{:?}", NaiveDate::from_ymd( 0, 1, 3).iso_week()), "0000-W01"); assert_eq!(format!("{:?}", NaiveDate::from_ymd(9999, 12, 31).iso_week()), "9999-W52");
ISO 8601 requires an explicit sign for years before 1 BCE or after 9999 CE.
assert_eq!(format!("{:?}", NaiveDate::from_ymd( 0, 1, 2).iso_week()), "-0001-W52"); assert_eq!(format!("{:?}", NaiveDate::from_ymd(10000, 12, 31).iso_week()), "+10000-W52");