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

From cppreference.com
< cpp‎ | chrono‎ | time point
 
 
 
 
 
(1)
time_point& operator+=( const duration& d );
(until C++17)
constexpr time_point& operator+=( const duration& d );
(since C++17)
(2)
time_point& operator-=( const duration& d );
(until C++17)
constexpr time_point& operator-=( const duration& d );
(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

(none)

See also

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