std::chrono::operator ==,!=,<,<=,>,>= (std::chrono::day)

 

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duration (C++11) time_point (C++11) time_of_day (C++20)	clock_time_conversion (C++20) clock_cast (C++20)
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day (C++20) month (C++20) year (C++20) weekday (C++20) operator/ (C++20) year_month_day (C++20) year_month_day_last (C++20) year_month_weekday (C++20) year_month_weekday_last (C++20)	weekday_indexed (C++20) weekday_last (C++20) month_day (C++20) month_day_last (C++20) month_weekday (C++20) month_weekday_last (C++20) year_month (C++20)
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C 风格日期和时间

 

std::chrono::day

成员函数

day::day

day::operator++day::operator--

day::operator+=day::operator-=

day::operator unsigned

day::ok

非成员函数

operator==operator!=operator<operator<=operator>operator>=

operator+operator-

operator<<

to_stream

from_stream

 

constexpr bool operator==(const std::chrono::day& x, const std::chrono::day& y) noexcept;	(1)	(C++20 起)
constexpr bool operator!=(const std::chrono::day& x, const std::chrono::day& y) noexcept;	(2)	(C++20 起)
constexpr bool operator< (const std::chrono::day& x, const std::chrono::day& y) noexcept;	(3)	(C++20 起)
constexpr bool operator<=(const std::chrono::day& x, const std::chrono::day& y) noexcept;	(4)	(C++20 起)
constexpr bool operator> (const std::chrono::day& x, const std::chrono::day& y) noexcept;	(5)	(C++20 起)
constexpr bool operator>=(const std::chrono::day& x, const std::chrono::day& y) noexcept;	(6)	(C++20 起)

比较二个 std::chrono::day x 和 y 。

返回值

1) unsigned(x) == unsigned(y)

2) unsigned(x) != unsigned(y)

3) unsigned(x) <  unsigned(y)

4) unsigned(x) <= unsigned(y)

5) unsigned(x) >  unsigned(y)

6) unsigned(x) >= unsigned(y)