Created on 2019-05-19.00:00:00 last changed 46 months ago
Proposed resolution:
This wording is relative to N4810.
Modify [time.cal.ymd.members] as indicated:
constexpr operator sys_days() const noexcept;-18- Returns: If ok(), returns a sys_days holding a count of days from the sys_days epoch to *this (a negative value if *this represents a date prior to the sys_days epoch). Otherwise, if y_.ok() && m_.ok() is true, returns sys_days{y_/m_/1d} + (d_ - 1d)
a sys_days which is offset from sys_days{y_/m_/last} by the number of days d_ is offset from sys_days{y_/m_/last}.day(). Otherwise the value returned is unspecified.
[ 2019-06-08; Priority to 0 and Status to Tentatively Ready after six positive votes on the reflector. ]
The current specification of the year_month_day
conversion function to sys_days
,
uses the day
member function on the sys_days
(a.k.a.
time_point<system_clock, days>
), that does not exist.
sys_days{y_/m_/last}.day()
is
ill-formed:
[…] Otherwise, if
y_.ok() && m_.ok()
is true, returns a sys_days which is offset fromsys_days{y_/m_/last}
by the number of daysd_
is offset fromsys_days{y_/m_/last}.day()
. Otherwise the value returned is unspecified.
History | |||
---|---|---|---|
Date | User | Action | Args |
2021-02-25 10:48:01 | admin | set | status: wp -> c++20 |
2019-07-22 15:46:37 | admin | set | status: voting -> wp |
2019-06-17 05:25:36 | admin | set | status: ready -> voting |
2019-06-08 14:29:37 | admin | set | messages: + msg10418 |
2019-06-08 14:29:37 | admin | set | status: new -> ready |
2019-05-26 14:49:03 | admin | set | messages: + msg10409 |
2019-05-19 00:00:00 | admin | create |