std::chrono::operator<<(std::chrono::file_time)

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< cpp‎ | chrono‎ | file clock

 
 
Utilities library
General utilities
Date and time
Function objects
Formatting library (C++20)
(C++11)
Relational operators (deprecated in C++20)
Integer comparison functions
(C++20)(C++20)(C++20)   
(C++20)
Swap and type operations
(C++14)
(C++11)
(C++11)
(C++11)
(C++17)
Common vocabulary types
(C++11)
(C++17)
(C++17)
(C++17)
(C++11)
(C++17)
(C++23)
Elementary string conversions
(C++17)
(C++17)
 
 
std::chrono::file_clock
Member functions

(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
operator<<
 
Defined in header <chrono>
template< class CharT, class Traits, class Duration >

std::basic_ostream<CharT, Traits>&
operator<<( std::basic_ostream<CharT, Traits>& os,

            const std::chrono::file_time<Duration>& tp );
(since C++20)

Outputs tp into the stream os, as if by os << std::format(os.getloc(), STATICALLY-WIDEN("{:L%F %T}"), tp), where STATICALLY_WIDEN<CharT>("{:L%F %T}") is "{:L%F %T}" if CharT is char, and L"{:L%F %T}" if CharT is wchar_t.

Return value

os.

Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR Applied to Behavior as published Correct behavior
P2372R3 C++20 the given locale was used by default L is needed to use the given locale

See also

formatting support for file_time
(class template specialization)
(C++20)
stores formatted representation of the arguments in a new string
(function template)