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std::chrono::operator==(std::chrono::weekday)

Defined in header <chrono> 
constexpr bool operator==( const std::chrono::weekday& x,
                           const std::chrono::weekday& y ) noexcept;
 (since C++20)

Compare the two std::chrono::weekday x and y.

The != operator is synthesized from operator==.

Return value

x.c_encoding() == y.c_encoding().

Notes

weekday does not support the <, <=, > and >= operators because there is no universal consensus on which day is the first day of the week.

Example 

#include <iostream>
#include <chrono>
 
int main()
{
    using namespace std::literals;
 
    constexpr std::chrono::weekday wd1{2};
    constexpr std::chrono::weekday wd2{std::chrono::Friday};
    // 1 January 2021 is a Friday
    constexpr std::chrono::weekday wd3{2021y/1/1}; 
 
    std::cout << std::boolalpha;
    std::cout << (wd1 == wd2) << "\n";
    std::cout << (wd2 == wd3) << "\n";
}

Output:

false
true

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