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::tai_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
.
os
.
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 |
(C++20) | formatting support for tai_time (class template specialization) |
(C++20) | stores formatted representation of the arguments in a new string (function template) |
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
https://en.cppreference.com/w/cpp/chrono/tai_clock/operator_ltlt