std::chrono::operator<<(std::chrono::hh_mm_ss)

 

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chrono I/O
parse (C++20)
C-style date and time

 

std::chrono::hh_mm_ss

Member functions

hh_mm_ss::hh_mm_ss

hh_mm_ss::is_negativehh_mm_ss::hourshh_mm_ss::minuteshh_mm_ss::secondshh_mm_ss::subseconds

hh_mm_ss::operator precisionhh_mm_ss::to_duration

Non-member functions

operator<<

Helper classes

formatter<std::chrono::hh_mm_ss>

 

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::hh_mm_ss<Duration>& t );		(since C++20)

Outputs t into the stream os.

Equivalent to return os << std::format(os.getloc(), STATICALLY_WIDEN<CharT>("{:L%T}"), hms); where STATICALLY_WIDEN<CharT>("{:L%T}") is "{:L%T}" if CharT is char, and L"{:L%T}" if CharT is wchar_t.

Parameters

os	-	the output stream.
t	-	the time of day to be output.

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

format (C++20)	stores formatted representation of the arguments in a new string (function template)
std::formatter<std::chrono::hh_mm_ss> (C++20)	specialization of std::formatter that formats a hh_mm_ss according to the provided format (class template specialization)