std::chrono::operator<< (std::chrono::year_month)
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                    < cpp | chrono | year month
                    
                                                            
                    | template< class CharT, class Traits > std::basic_ostream<CharT, Traits>& | (since C++20) | |
Outputs a textual representation of ym into the stream os, as if by os << ym.year() << '/' << ym.month().
Return value
os.
Notes
This operator<< is primarily intended for debugging use. When used with non-default stream flags, the output may be surprising:
For control over formatting, use std::chrono::format.
See also
| outputs a year_monthinto a stream according to the provided format(function template) | |
| (C++20) | formats a streamable chronoobject for insertion(function template) |