std::chrono:: operator<< (std::chrono::month_weekday)

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C++
Utilities library
General utilities
Relational operators (deprecated in C++20)
Date and time utilities
Time point
(C++11)
(C++20)
Duration
(C++11)
Clocks
(C++20)
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Time of day
(C++20) (C++20)
(C++20) (C++20)
(C++20)

Calendar
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
Time zone
(C++20)
(C++20)
(C++20) (C++20) (C++20) (C++20)
(C++20)
chrono I/O
(C++20)
C-style date and time
std::chrono::month_weekday
Defined in header <chrono>
template < class CharT, class Traits >

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

const std:: chrono :: month_weekday & mwd ) ;
(since C++20)

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

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

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

Return value

os

Example

This section is incomplete
Reason: no example

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 month
(class template specialization)
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