std::chrono::operator==,<,<=,>,>=,<=>(std::chrono::leap_second)
在标头 <chrono> 定义 | ||
constexpr bool operator==( const std::chrono::leap_second& x, const std::chrono::leap_second& y ) noexcept; | (1) | (C++20 起) |
constexpr std::strong_ordering operator<=>( const std::chrono::leap_second& x, const std::chrono::leap_second& y ) noexcept; | (2) | (C++20 起) |
template< class Duration > constexpr bool operator==( const std::chrono::leap_second& x, | (3) | (C++20 起) |
template< class Duration > constexpr bool operator< ( const std::chrono::leap_second& x, | (4) | (C++20 起) |
template< class Duration > constexpr bool operator< ( const std::chrono::sys_time<Duration>& x, | (5) | (C++20 起) |
template< class Duration > constexpr bool operator> ( const std::chrono::leap_second& x, | (6) | (C++20 起) |
template< class Duration > constexpr bool operator> ( const std::chrono::sys_time<Duration>& x, | (7) | (C++20 起) |
template< class Duration > constexpr bool operator<=( const std::chrono::leap_second& x, | (8) | (C++20 起) |
template< class Duration > constexpr bool operator<=( const std::chrono::sys_time<Duration>& x, | (9) | (C++20 起) |
template< class Duration > constexpr bool operator>=( const std::chrono::leap_second& x, | (10) | (C++20 起) |
template< class Duration > constexpr bool operator>=( const std::chrono::sys_time<Duration>& x, | (11) | (C++20 起) |
template< class Duration > requires std::three_way_comparable_with< | (12) | (C++20 起) |
比较对象 x 与 y 所表示的日期和时间。
(12) 的返回类型从 x.date() <=> y 推导,从而为 std::chrono::seconds 与 Duration
的三路比较结果类型。
!=
运算符从 operator==
运算符合成。