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std::chrono...dexed::index(3)  C++ Standard Libary std::chrono...dexed::index(3)

NAME
     std::chrono::weekday_indexed::index - std::chrono::weekday_indexed::index

Synopsis
	constexpr unsigned index() const noexcept;  (since C++20)

	Accesses the index stored in *this.

Return value
	The index stored in *this.

Example
     // Run this code

      #include <chrono>
      #include <iostream>

      int main()
      {
	  std::cout << std::boolalpha;

	  std::chrono::weekday_indexed	wdi  {std::chrono::Tuesday[2]};  //  2nd
     Tuesday of a month
	  std::cout << (std::chrono::year_month_day{wdi/10/2019} ==
			std::chrono::year_month_day{std::chrono::Octo-
     ber/8/2019}) << ' ';

	  wdi = {wdi.weekday()[wdi.index() + 2]}; // 2nd Tuesday => 4th Tuesday
	  std::cout << (std::chrono::year_month_day{wdi/10/2019} ==
			std::chrono::year_month_day{std::chrono::Octo-
     ber/22/2019}) << '\n';
      }

Output:
      true true

http://cppreference.com 	   2024.06.10	   std::chrono...dexed::index(3)

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