The TrivialClock requirements describe the requirements satisfied by several clocks in the chrono library.
For a type TC
:
TC::rep
, TC::duration
, and TC::time_point
satisfy the requirements of EqualityComparable, LessThanComparable, DefaultConstructible, CopyConstructible, CopyAssignable, Destructible, and NumericType. TC::rep
, TC::duration
, and TC::time_point
are Swappable. TC::now()
does not throw exceptions. TC::time_point::clock
meets the TrivialClock requirements, recursively. The following types in the standard library satisfy these requirements:
std::chrono::system_clock
std::chrono::steady_clock
std::chrono::high_resolution_clock
std::filesystem::file_time_type::clock
std::chrono::file_clock
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