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std::chrono::time_point::operator+, operator-

time_point& operator+=( const duration& d );
 (1) (since C++11) 
time_point& operator-=( const duration& d );
 (2) (since C++11)

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

(none).

See also

 modifies the time point by the given duration
(function template)

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