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

 

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std::chrono::year_month

Member functions

year_month::year_month

year_month::yearyear_month::month

year_month::operator+=year_month::operator-=

year_month::ok

Nonmember functions

operator==operator<=>

operator+operator-

operator<<

from_stream

Helper classes

formatter<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.

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

format (C++20)	stores formatted representation of the arguments in a new string (function template)
std::formatter<std::chrono::year_month> (C++20)	specialization of std::formatter that formats a year_month according to the provided format (class template specialization)