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std::chrono::operator<<(std::chrono::utc_time)(3) C++ Standard Libary std::chrono::operator<<(std::chrono::utc_time)(3)


std::chrono::operator<<(std::chrono::utc_time) - std::chrono::operator<<(std::chrono::utc_time)


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

std::basic_ostream<CharT, Traits>& (since C++20)
operator<<( std::basic_ostream<CharT, Traits>& os,

const std::chrono::utc_time<Duration>& tp );

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


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

See also

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