std::chrono::year_month_day::year, std::chrono::year_month_day::month, std::chrono::year_month_day::day
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                    < cpp | chrono | year month day
                    
                                                            
                    |   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::day day() const noexcept;  | 
(3) | (since C++20) | 
Retrieves the year, month and day values stored in this year_month_day object.
Return value
1) Returns the stored std::chrono::year value.
2) Returns the stored std::chrono::month value.
3) Returns the stored std::chrono::day value.
Example
Run this code
#include <chrono> int main() { constexpr std::chrono::year_month_day ymd{std::chrono::July/1/2021}; static_assert(ymd.year() == std::chrono::year(2021)); static_assert(ymd.month() == std::chrono::month(7)); static_assert(ymd.day() == std::chrono::day(1)); }