std::chrono::weekday_indexed::weekday_indexed (3) - Linux Manuals

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

NAME

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