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std::chrono:: operator== (std::chrono::weekday_indexed)

From cppreference.net
C++
Date and time library
std::chrono::weekday_indexed
定义于头文件 <chrono>
constexpr bool operator == ( const std:: chrono :: weekday_indexed & x,
const std:: chrono :: weekday_indexed & y ) noexcept ;
(C++20 起)

比较两个 weekday_indexed x 和 y 。

!= 运算符由 operator== 合成 而来。

返回值

x. weekday ( ) == y. weekday ( ) && x. index ( ) == y. index ( )

示例

运行此代码 
#include <chrono>
int main()
{
    constexpr std::chrono::weekday_indexed wdi1{std::chrono::Wednesday[2]};
    constexpr std::chrono::weekday_indexed wdi2{std::chrono::weekday(3), 2};
    static_assert(wdi1 == wdi2);
}