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Add an example to Weekday #1019

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Apr 18, 2023
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Add an example to Weekday #1019

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22 changes: 21 additions & 1 deletion src/weekday.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,26 @@ use rkyv::{Archive, Deserialize, Serialize};
/// The order of the days of week depends on the context.
/// (This is why this type does *not* implement `PartialOrd` or `Ord` traits.)
/// One should prefer `*_from_monday` or `*_from_sunday` methods to get the correct result.
///
/// # Example
/// ```
/// use chrono::Weekday;
/// use num_traits::cast::FromPrimitive;
///
/// let monday = "Monday".parse::<Weekday>().unwrap();
/// assert_eq!(monday, Weekday::Mon);
///
/// let sunday = Weekday::from_u8(6).unwrap();
/// assert_eq!(sunday, Weekday::Sun);
///
/// assert_eq!(sunday.num_days_from_monday(), 6); // starts counting with Monday = 0
/// assert_eq!(sunday.number_from_monday(), 7); // starts counting with Monday = 1
/// assert_eq!(sunday.num_days_from_sunday(), 0); // starts counting with Sunday = 0
/// assert_eq!(sunday.number_from_sunday(), 1); // starts counting with Sunday = 1
///
/// assert_eq!(sunday.succ(), monday);
/// assert_eq!(sunday.pred(), Weekday::Sat);
/// ```
#[derive(PartialEq, Eq, Copy, Clone, Debug, Hash)]
#[cfg_attr(feature = "rustc-serialize", derive(RustcEncodable, RustcDecodable))]
#[cfg_attr(feature = "rkyv", derive(Archive, Deserialize, Serialize))]
Expand Down Expand Up @@ -110,7 +130,7 @@ impl Weekday {

/// Returns a day-of-week number starting from the parameter `day` (D) = 0.
///
/// `w`: | `D` | `D+1` | `D+2` | `D+3` | `D+4` | `D+5` | `D+6`
/// `w`: | `D` | `D+1` | `D+2` | `D+3` | `D+4` | `D+5` | `D+6`
/// --------------------------- | ----- | ----- | ----- | ----- | ----- | ----- | -----
/// `w.num_days_from(wd)`: | 0 | 1 | 2 | 3 | 4 | 5 | 6
#[inline]
Expand Down