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

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Utilities library
General utilities
Relational operators (deprecated in C++20)
time_point & operator + = ( const duration & d ) ;
(1) (since C++11)
(constexpr since C++17)
time_point & operator - = ( const duration & d ) ;
(2) (since C++11)
(constexpr since C++17)

Modifies the time point by the given duration.

1) Applies the offset d to pt . Effectively, d is added to the internally stored duration d_ as d_ + = d .
2) Applies the offset d to pt in negative direction. Effectively, d is subtracted from internally stored duration d_ as d_ - = d .

Parameters

d - a time offset to apply

Return value

* this

Exceptions

May throw implementation-defined exceptions.

Example

See also

performs add and subtract operations involving a time point
(function template)