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std::chrono::file_clock::to_sys, std::chrono::file_clock::from_sys

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< cpp‎ | chrono‎ | file clock
 
 
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std::chrono::file_clock
Member functions

file_clock::to_sysfile_clock::from_sys
(provided only if to_utc and from_utc are not provided)

(provided only if to_sys and from_sys are not provided)
Time point I/O
 
template <class Duration>

static std::chrono::sys_time</*see below*/>

    to_sys(const std::chrono::file_time<Duration>& t);
(1) (since C++20)
(optional)
template <class Duration>

static std::chrono::file_time</*see below*/>

    from_sys(const std::chrono::sys_time<Duration>& t);
(2) (since C++20)
(optional)
1) Converts the file_time t to a sys_time representing the same point in time.
2) Converts the sys_time t to a file_time representing the same point in time.

The duration of the return type is computed from Duration in an unspecified manner.

These function templates are optional: an implementation may choose to instead provide to_utc and from_utc.

[edit] Return value

1) A sys_time representing the same point in time as the argument.
2) A file_time representing the same point in time as the argument.

[edit] Notes

User code should usually use std::chrono::clock_cast, which provides a generic interface to convert time points between clocks, rather than call these functions directly.

[edit] See also

[static] (optional)
converts between file_time and utc_time
(public static member function) [edit]
convert time points of one clock to another
(function template) [edit]