std::chrono::operator ==,!=,<,<=,>,>= (std::chrono::year_month)
来自cppreference.com
< cpp | chrono | year month
constexpr bool operator==(const std::chrono::year_month& x, const std::chrono::year_month& y) noexcept; |
(1) | (C++20 起) |
constexpr bool operator!=(const std::chrono::year_month& x, const std::chrono::year_month& y) noexcept; |
(2) | (C++20 起) |
constexpr bool operator< (const std::chrono::year_month& x, const std::chrono::year_month& y) noexcept; |
(3) | (C++20 起) |
constexpr bool operator> (const std::chrono::year_month& x, const std::chrono::year_month& y) noexcept; |
(4) | (C++20 起) |
constexpr bool operator<=(const std::chrono::year_month& x, const std::chrono::year_month& y) noexcept; |
(5) | (C++20 起) |
constexpr bool operator>=(const std::chrono::year_month& x, const std::chrono::year_month& y) noexcept; |
(6) | (C++20 起) |
比较二个 year_month
对象 x
与 y
。
返回值
1) x.year() == y.year() && x.month() == y.month()
2) !(x == y)
3) x.year() < y.year() || (x.year() == y.year() && x.month() < y.month())
4) y < x
5) !(y < x)
6) !(x < y)