std::chrono::weekday_indexed::weekday_indexed (3) Linux Manual Page

std::chrono::weekday_indexed::weekday_indexed – std::chrono::weekday_indexed::weekday_indexed

Synopsis

weekday_indexed() = default;
(since C++ 20)

    constexpr weekday_indexed(const std::chrono::weekday &wd, unsigned index) noexcept;
(since C++ 20)

Constructs a weekday_indexed.
1) Default constructor leaves both the std::chrono::weekday and the index value uninitialized.
2) Constructs a weekday_indexed storing the weekday wd and the index index. The values held are unspecified if !wd.ok() || index == 0 || index > 5.

Notes

A more convenient way to construct a weekday_indexed is with weekday’s operator[], i.e., wd[index].

Example

// Run this code

#include <chrono>

#include <iostream>

using namespace std::chrono;
int main()
{
    auto wdi = Tuesday[2]; // wdi is weekday_indexed representing the 2nd tuesday
    std::cout << year_month_day{wdi / October / 2019y};
}

Output:

  2019-10-08

See also

           convenience syntax for constructing a weekday_indexed or weekday_last from this weekday
operator[] (public member function of std::chrono::weekday)