27 Time library [time]

27.11 Time zones [time.zone]

27.11.7 Class template zoned_­time [time.zone.zonedtime]

27.11.7.2 Constructors [time.zone.zonedtime.ctor]

🔗
zoned_time();
1
#
Constraints: traits​::​default_­zone() is a well-formed expression.
2
#
Effects: Initializes zone_­ with traits​::​default_­zone() and default constructs tp_­.
🔗
zoned_time(const sys_time<Duration>& st);
3
#
Constraints: traits​::​default_­zone() is a well-formed expression.
4
#
Effects: Initializes zone_­ with traits​::​default_­zone() and tp_­ with st.
🔗
explicit zoned_time(TimeZonePtr z);
5
#
Preconditions: z refers to a time zone.
6
#
Effects: Initializes zone_­ with std​::​move(z) and default constructs tp_­.
🔗
explicit zoned_time(string_view name);
7
#
Constraints: traits​::​locate_­zone(string_­view{}) is a well-formed expression and zoned_­time is constructible from the return type of traits​::​locate_­zone(string_­view{}).
8
#
Effects: Initializes zone_­ with traits​::​locate_­zone(name) and default constructs tp_­.
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template<class Duration2> zoned_time(const zoned_time<Duration2, TimeZonePtr>& y);
9
#
Constraints: is_­convertible_­v<sys_­time<Duration2>, sys_­time<Duration>> is true.
10
#
Effects: Initializes zone_­ with y.zone_­ and tp_­ with y.tp_­.
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zoned_time(TimeZonePtr z, const sys_time<Duration>& st);
11
#
Preconditions: z refers to a time zone.
12
#
Effects: Initializes zone_­ with std​::​move(z) and tp_­ with st.
🔗
zoned_time(string_view name, const sys_time<Duration>& st);
13
#
Constraints: zoned_­time is constructible from the return type of traits​::​locate_­zone(name) and st.
14
#
Effects: Equivalent to construction with {traits​::​locate_­zone(name), st}.
🔗
zoned_time(TimeZonePtr z, const local_time<Duration>& tp);
15
#
Preconditions: z refers to a time zone.
16
#
Constraints: 
is_convertible_v<
  decltype(declval<TimeZonePtr&>()->to_sys(local_time<Duration>{})),
  sys_time<duration>>
is true.
17
#
Effects: Initializes zone_­ with std​::​move(z) and tp_­ with zone_­->to_­sys(tp).
🔗
zoned_time(string_view name, const local_time<Duration>& tp);
18
#
Constraints: zoned_­time is constructible from the return type of traits​::​locate_­zone(name) and tp.
19
#
Effects: Equivalent to construction with {traits​::​locate_­zone(name), tp}.
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zoned_time(TimeZonePtr z, const local_time<Duration>& tp, choose c);
20
#
Preconditions: z refers to a time zone.
21
#
Constraints: 
is_convertible_v<
  decltype(declval<TimeZonePtr&>()->to_sys(local_time<Duration>{}, choose::earliest)),
  sys_time<duration>>
is true.
22
#
Effects: Initializes zone_­ with std​::​move(z) and tp_­ with zone_­->to_­sys(tp, c).
🔗
zoned_time(string_view name, const local_time<Duration>& tp, choose c);
23
#
Constraints: zoned_­time is constructible from the return type of traits​::​locate_­zone(name), local_­time<Duration>, and choose.
24
#
Effects: Equivalent to construction with {traits​::​locate_­zone(name), tp, c}.
🔗
template<class Duration2, class TimeZonePtr2> zoned_time(TimeZonePtr z, const zoned_time<Duration2, TimeZonePtr2>& y);
25
#
Constraints: is_­convertible_­v<sys_­time<Duration2>, sys_­time<Duration>> is true.
26
#
Preconditions: z refers to a valid time zone.
27
#
Effects: Initializes zone_­ with std​::​move(z) and tp_­ with y.tp_­.
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template<class Duration2, class TimeZonePtr2> zoned_time(TimeZonePtr z, const zoned_time<Duration2, TimeZonePtr2>& y, choose);
28
#
Constraints: is_­convertible_­v<sys_­time<Duration2>, sys_­time<Duration>> is true.
29
#
Preconditions: z refers to a valid time zone.
30
#
Effects: Equivalent to construction with {z, y}.
31
#
[Note
:
The choose parameter has no effect.
— end note
]
🔗
template<class Duration2, class TimeZonePtr2> zoned_time(string_view name, const zoned_time<Duration2, TimeZonePtr2>& y);
32
#
Constraints: zoned_­time is constructible from the return type of traits​::​locate_­zone(name) and the type zoned_­time<Duration2, TimeZonePtr2>.
33
#
Effects: Equivalent to construction with {traits​::​locate_­zone(name), y}.
🔗
template<class Duration2, class TimeZonePtr2> zoned_time(string_view name, const zoned_time<Duration2, TimeZonePtr2>& y, choose c);
34
#
Constraints: zoned_­time is constructible from the return type of traits​::​locate_­zone(name), the type zoned_­time<Duration2, TimeZonePtr2>, and the type choose.
35
#
Effects: Equivalent to construction with {traits​::​locate_­zone(name), y, c}.
36
#
[Note
:
The choose parameter has no effect.
— end note
]