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

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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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chrono I/O
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C-style date and time
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 .

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

(C++20)
stores formatted representation of the arguments in a new string
(function template)
(C++20)
formatting support for hh_mm_ss
(class template specialization)
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