std::chrono::time_point<Clock,Duration>:: operator+=, operator-=

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time_point & operator + = ( const duration & d ) ;	(1)	(C++11以降) (constexprはC++17以降)
time_point & operator - = ( const duration & d ) ;	(2)	(C++11以降) (constexprはC++17以降)

指定された期間だけ時間点を変更します。

1) オフセット d を

pt

に適用します。実質的に、 d が内部に保存された期間

d_

に d_ + = d として加算されます。

2) オフセット d を

pt

に負の方向に適用します。実質的に、 d が内部に保存された期間

d_

から減算され、 d_ - = d として処理されます。

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Member functions
time_point::time_point
time_point::time_since_epoch
time_point::operator+= time_point::operator-=
time_point::operator++ time_point::operator-- (C++20) (C++20)
time_point::min
time_point::max
Non-member functions
operator+ operator-
operator== operator!= operator< operator<= operator> operator>= operator<=> (until C++20) (C++20)
time_point_cast
floor (C++17)
ceil (C++17)
round (C++17)
Helper classes
common_type
hash <std::chrono::time_point> (C++26)

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