std:: hash <std::chrono::year_month_day_last>

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定义于头文件 `<chrono>`
template <> struct hash < std:: chrono :: year_month_day_last > ;		(C++26 起)

针对 std::chrono::year_month_day_last 的 std::hash 模板特化允许用户获取 std:: chrono :: year_month_day_last 类型对象的哈希值。此特化已启用。

此特化的 operator ( ) 为 noexcept 。

功能测试宏	值	标准	功能
`__cpp_lib_chrono`	`202306L`	(C++26)	哈希支持 `std::chrono` 值类

(C++11)

哈希函数对象
(类模板)

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Member functions
year_month_day_last::year_month_day_last
year_month_day_last::operator+= year_month_day_last::operator-=
year_month_day_last::year year_month_day_last::month year_month_day_last::day year_month_day_last::month_day_last
year_month_day_last::operator sys_days year_month_day_last::operator local_days
year_month_day_last::ok
Nonmember functions
operator== operator<=>
operator+ operator-
operator<<
Helper classes
formatter <std::chrono::year_month_day_last>
hash <std::chrono::year_month_day_last> (C++26)