std::chrono::year::operator+, std::chrono::year::operator-

 

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std::chrono::year

成员函数

year::year

year::operator++year::operator--

year::operator+=year::operator-=

year::operator+year::operator-

year::is_leap

year::operator int

year::ok

year::min

year::max

非成员函数

operator==operator<=>

operator+operator-

operator<<

from_stream

辅助类

formatter<std::chrono::year>

 

constexpr std::chrono::year operator+() noexcept;	(1)	(C++20 起)
constexpr std::chrono::year operator-() noexcept;	(2)	(C++20 起)

应用一元运算符到年份值。

1) 返回 *this 的副本。

2) 返回年份值为 *this 的年份值相反数的 year 。

返回值

1) *this

2) std::chrono::year(-int(*this))