std::chrono:: operator<< (std::chrono::hh_mm_ss)

Defined in header <chrono>
template < class CharT, class Traits, class Duration > std:: basic_ostream < CharT, Traits > & operator << ( std:: basic_ostream < CharT, Traits > & os, const std:: chrono :: hh_mm_ss < Duration > & t ) ;		(since C++20)

Outputs t into the stream os .

Equivalent to return os << std:: format ( os. getloc ( ) , STATICALLY_WIDEN < CharT > ( "{:L%T}" ) , hms ) ; where STATICALLY_WIDEN < CharT > ( "{:L%T}" ) is "{:L%T}" if CharT is char , and L "{:L%T}" if CharT is wchar_t .

Contents 1 Parameters 2 Return value 3 Example 4 Defect reports 5 See also

Parameters

os	-	the output stream
t	-	the time of day to be output

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

format (C++20)	stores formatted representation of the arguments in a new string (function template)
std::formatter <std::chrono::hh_mm_ss> (C++20)	formatting support for hh_mm_ss (class template specialization)