std::chrono::operator==(std::chrono::year_month_weekday)
来自cppreference.com
< cpp | chrono | year month weekday
在标头 <chrono> 定义
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constexpr bool operator==( const std::chrono::year_month_weekday& x, const std::chrono::year_month_weekday& y ) noexcept; |
(C++20 起) | |
比较两个 year_month_weekday
值 x 与 y。
!=
运算符从 operator==
运算符合成。
返回值
x.year() == y.year() && x.month() == y.month() && x.weekday_indexed() == y.weekday_indexed()
示例
运行此代码
#include <chrono> #include <iostream> using namespace std::chrono; int main() { constexpr auto ymwdi1{Wednesday[1]/January/2021}; constexpr year_month_weekday ymwdi2{year(2021), month(1), weekday(3)[1]}; std::cout << std::boolalpha << (ymwdi1 == ymwdi2) << '\n'; }
输出:
true