std::chrono:: operator<< (std::chrono::year_month)

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C++
Utilities library
General utilities
Relational operators (deprecated in C++20)
Date and time utilities
Time point
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Time of day
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Calendar
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Time zone
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chrono I/O
(C++20)
C-style date and time
std::chrono::year_month
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 & ym ) ;
(since C++20)

Outputs a textual representation of ym into the stream os , as if by

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

where STATICALLY_WIDEN < CharT > ( "{}/{:L}" ) is "{}/{:L}" if CharT is char , and 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 year_month
(class template specialization)
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