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std::chrono::duration::operator++, std::chrono::duration::operator--

duration& operator++();	(1)
duration operator++(int);	(2)
duration& operator--();	(3)
duration operator--(int);	(4)

Increments or decrements the number of ticks for this duration.

If rep_ is a member variable holding the number of ticks in a duration object,

1) Equivalent to ++rep_; return *this;

2) Equivalent to return duration(rep_++)

3) Equivalent to --rep_; return *this;

4) Equivalent to return duration(rep_--);

Parameters

(none).

Return value

1,3) a reference to this duration after modification

2,4) a copy of the duration made before modification

Example

#include <chrono>
#include <iostream>
 
int main()
{
    std::chrono::hours h(1);
    std::chrono::minutes m = ++h;
    m--;
    std::cout << m.count() << " minutes\n";
}

Output:

119 minutes

operator+=operator-=operator*=operator/=operator%=	implements compound assignment between two durations (public member function)
operator+operator-operator*operator/operator%	implements arithmetic operations with durations as arguments (function template)

std::chrono::duration::operator++, std::chrono::duration::operator--

Parameters

Return value

Example

See also