std::chrono::operator<< (std::chrono::weekday_indexed)

From cppreference.com
 
 
 
Date and time utilities
(C++11)
(C++11)
Clocks
(C++20)
                                                  
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
Calendars
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
Time zones
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
(C++20)
C-style date and time
 
 
template <class CharT, class Traits>

std::basic_ostream<CharT, Traits>&

operator<<(std::basic_ostream<CharT, Traits>& os, const std::chrono::weekday_indexed& wdi);
(since C++20)

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

os << wdi.weekday() << '[' << wdi.index();
if(wdi.index() >=1 && wdi.index <= 5) {
    os << ']';
} 
else {
    os << " is not a valid index]";
}

Return value

os.

Notes

This operator<< is primarily intended for debugging use. When used with non-default stream flags, the output may be surprising:

auto wdi = std::chrono::Sunday[1];
std::cout.width(10);
std::cout.fill('-');
std::cout << std::left << wdi; // may output "Sun-------[1]"