std::chrono::year_month_weekday_last::year, std::chrono::year_month_weekday_last::month, std::chrono::year_month_weekday_last::weekday, std::chrono::year_month_weekday_last::weekday_last

From cppreference.com
 
 
Utilities library
General utilities
Date and time
Function objects
Formatting library (C++20)
(C++11)
Relational operators (deprecated in C++20)
Integer comparison functions
(C++20)(C++20)(C++20)   
(C++20)
Swap and type operations
(C++14)
(C++11)
(C++11)
(C++11)
(C++17)
Common vocabulary types
(C++11)
(C++17)
(C++17)
(C++17)
(C++11)
(C++17)
(C++23)
Elementary string conversions
(C++17)
(C++17)
 
 
 
constexpr std::chrono::year year() const noexcept;
(1) (since C++20)
constexpr std::chrono::month month() const noexcept;
(2) (since C++20)
constexpr std::chrono::weekday weekday() const noexcept;
(3) (since C++20)
constexpr std::chrono::weekday_last weekday_last() const noexcept;
(4) (since C++20)

Retrieves the field values stored in this year_month_weekday_last object.

Return values

1) Returns the stored std::chrono::year value.
2) Returns the stored std::chrono::month value.
3) Returns the stored std::chrono::weekday value.

Example

#include <iostream>
#include <chrono>
using namespace std::chrono;
 
int main()
{
    std::cout << std::boolalpha;
 
    auto ymwdl {Tuesday[last]/November/2022};
    auto wdl = ymwdl.weekday_last();
    wdl = (wdl.weekday() + days(1))[last];
    ymwdl = {ymwdl.year() + years(1), ymwdl.month() - months(2), wdl};
    std::cout << (year_month_day(ymwdl) == September/27/2023) << '\n';
}

Output:

true