std::chrono:: operator<< (std::chrono::year_month_weekday_last)

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C++
Utilities library
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chrono I/O
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C-style date and time
std::chrono::year_month_weekday_last
Defined in header <chrono>
template < class CharT, class Traits >

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

const std:: chrono :: year_month_weekday_last & ymwdl ) ;
(since C++20)

Outputs a textual representation of ymwdl into os , as if by

os << std:: format ( os. getloc ( ) , STATICALLY_WIDEN < CharT > ( "{}/{:L}/{:L}" ) ,
ymwdl. year ( ) , ymwdl. month ( ) , ymwdl. weekday_last ( ) ) ;

where STATICALLY_WIDEN < CharT > ( "{}/{:L}/{:L}" ) is "{}/{:L}/{:L}" if CharT is char , and L "..." 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

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