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

< cpp‎ | 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)

比较二个 `weekday_indexed` `x` 与 `y` 。

`!=` 运算符从 `operator==` 合成。

### 返回值

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

### 示例

    #include <iostream>
    #include <chrono>

    int main()
    {
        constexpr auto wdi1 {std::chrono::Tuesday[2]};
        constexpr std::chrono::weekday_indexed wdi2 {std::chrono::weekday(2), 2};
        std::cout << std::boolalpha << (wdi1 == wdi2) << '\n';
    }

输出：

    true