7 Commits

Author SHA1 Message Date
Howard Hinnant
40b83654b6 [API BREAKING] Remove conversion from weekday to unsigned
* There has been a great deal of anguish over the encoding of
  weekdays:  whether [0, 6] maps to [Sunday, Saturday] or
  [1, 7] maps to [Monday, Sunday].  This commit attempts
  to address that issue, but will break a small amount of
  code at compile-time.  See below on how to fix that.

* The weekday constructor used to accept [0, 6] to represent
  [Sunday, Saturday].  It now accepts [0, 7] to represent
  [Sunday, Saturday] with both 0 and 7 mapping to Sunday.

* The conversion from weekday to unsigned has been removed.

* To convert a weekday to unsigned replace:

      auto u = unsigned{wd};

  with:

      auto u = (wd - Sunday).count();

  This maps [Sunday, Saturday] to [0, 6], which is the
  C/POSIX mapping.  If you prefer the ISO mapping
  ([Monday, Sunday] -> [1, 7]), then do:

      auto u = (wd - Monday).count() + 1;
2018-06-02 22:56:10 -04:00
Howard Hinnant
3fb4d32922 Update tests for default constructible calendar types 2016-09-15 20:21:56 -04:00
Howard Hinnant
6fe8b4b7f3 Update copyright to 2016 2016-05-30 22:21:08 -04:00
Howard Hinnant
ea2d0d3357 constexpr more stuff and clean up whitespace 2016-05-30 22:09:21 -04:00
Howard Hinnant
76c906d779 Get off of day_point 2016-05-21 10:24:25 -04:00
Howard Hinnant
a0d2343eab Try disabling construction of weekday from int.
Also fix bug in round for negatives.
2015-09-02 20:48:44 -04:00
Howard Hinnant
55d2098c6f Add weekday tests 2015-08-09 14:48:11 -04:00