std::chrono::file_clock(3) C++ Standard Libary std::chrono::file_clock(3) NAME std::chrono::file_clock - std::chrono::file_clock Synopsis Defined in header <chrono> using file_clock = /* see below */; (since C++20) std::chrono::file_clock is an alias for the clock used for std::filesystem::file_time_type. Its epoch is unspecified. file_clock meets the TrivialClock requirements. Member types Member type Definition rep signed arithmetic type representing the number of ticks in the clock's duration period a std::ratio type representing the tick period of the clock, in seconds duration std::chrono::duration<rep, period>, capable of representing negative durations time_point std::chrono::time_point<std::chrono::file_clock> Member constants true if the time between ticks is always con- stant, i.e. constexpr bool is_steady calls to now() return values that increase mo- notonically [static] even in case of some external clock adjustment, otherwise false (public static member constant) Member functions file_clock provides exactly one of the following two pairs of static member functions: * to_utc and from_utc; or * to_sys and from_sys. now returns a std::chrono::time_point representing the current point [static] in time (public static member function) to_utc converts between file_time and utc_time from_utc (public static member function) [static] (optional) to_sys converts between file_time and sys_time from_sys (public static member function) [static] (optional) http://cppreference.com 2024.06.10 std::chrono::file_clock(3)
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