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

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< cpp‎ | chrono‎ | duration
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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_--);

Contents

[edit] Parameters

(none)

[edit] Return value

1,3) a reference to this duration after modification
2,4) a copy of the duration made before modification

[edit] 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

[edit] See also

implements compound assignment between two durations
(public member function) [edit]
implements arithmetic operations with durations as arguments
(function template) [edit]