Defined in header <chrono> | ||
|---|---|---|
template< class Duration > class time_of_day; // not defined | (1) | (since C++20) |
template<> class time_of_day<std::chrono::hours>; | (2) | (since C++20) |
template<> class time_of_day<std::chrono::minutes>; | (3) | (since C++20) |
template<> class time_of_day<std::chrono::seconds>; | (4) | (since C++20) |
template< class Rep, class Period > class time_of_day<std::chrono::duration<Rep, Period>>; | (5) | (since C++20) |
The class template time_of_day splits a std::chrono::duration representing time since midnight into a "broken down" time such as hours:minutes:seconds, with the precision of the split determined by the Duration template parameter. It also tracks whether it should be output in a 12-hour time format or a 24-hour time format. It is primarily a formatting tool.
The primary template (1) is not defined; four specializations are provided to handle four different levels of precision.
Each specialization of time_of_day is a TriviallyCopyable StandardLayoutType.
The partial specialization (5) only exists if std::chrono::treat_as_floating_point_v<Rep> is false and std::chrono::duration<Rep, Period> is not convertible to std::chrono::seconds.
| Member type | Definition |
|---|---|
precision | Duration |
constructs a time_of_day (public member function) |
|
| accesses components of the broken-down time (public member function) |
|
accesses the stored std::chrono::duration (public member function) |
|
| changes the time format used for output (public member function) |
outputs a time_of_day into a stream (function template) |
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
http://en.cppreference.com/w/cpp/chrono/time_of_day