std::chrono::hh_mm_ss<Duration>:: operator precision, std::chrono::hh_mm_ss<Duration>:: to_duration

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constexpr explicit operator precision ( ) const noexcept ;	(1)
constexpr precision to_duration ( ) const noexcept ;	(2)

返回所表示的时长。

所表示的持续时间。

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Member functions
hh_mm_ss::hh_mm_ss
hh_mm_ss::is_negative hh_mm_ss::hours hh_mm_ss::minutes hh_mm_ss::seconds hh_mm_ss::subseconds
hh_mm_ss::operator precision hh_mm_ss::to_duration
Non-member functions
operator<<
Helper classes
formatter <std::chrono::hh_mm_ss>