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

From cppreference.com
C++
Utilities library
General utilities
Relational operators (deprecated in C++20)
Date and time utilities
Time point
(C++11)
(C++20)
Duration
(C++11)
Clocks
(C++20)
(C++20)
(C++20)
Time of day
(C++20) (C++20)
(C++20) (C++20)
(C++20)

Calendar
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
Time zone
(C++20)
(C++20)
(C++20) (C++20) (C++20) (C++20)
(C++20)
chrono I/O
(C++20)
C-style date and time
std::chrono::file_clock
Member functions

file_clock::to_sys file_clock::from_sys
( optional* )

( optional* )
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() .

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.

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.

Example

This section is incomplete
Reason: no example

See also

[static] (optional)
converts between file_time and utc_time
(public static member function)
(C++20)
convert time points of one clock to another
(function template)
Retrieved from " https://en.cppreference.com/mwiki/index.php?title=cpp/chrono/file_clock/to_from_sys&oldid=177463 "