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std::chrono:: operator== (std::chrono::month_weekday)

From cppreference.net
C++
Date and time library
std::chrono::month_weekday
Defined in header <chrono>
constexpr bool operator == ( const std:: chrono :: month_weekday & x,
const std:: chrono :: month_weekday & y ) noexcept ;
(since C++20)

Compares the two month_weekday values x and y .

The != operator is synthesized from operator== .

Return value

x. month ( ) == y. month ( ) && x. weekday_indexed ( ) == y. weekday_indexed ( )

Example

Run this code 
#include <chrono>
int main()
{
    constexpr auto mwdi1{std::chrono::March/std::chrono::Friday[1]};
    constexpr auto mwdi2
    {
        std::chrono::month_weekday
        {
            std::chrono::month(3), std::chrono::weekday(5)[1]
        }
    };
    static_assert(mwdi1 == mwdi2);
}