duration Class

Describes a type that holds a time interval, which is an elapsed time between two time points.

template<
   class Rep,
   class Period = ratio<1>
>
class duration;
template<
   class Rep,
   class Period
>
class duration;
template<
   class Rep,
   class Period1,
   class Period2
>
class duration
   <duration<Rep, Period1>, Period2>;

Remarks

The template argument Rep describes the type that is used to hold the number of clock ticks in the interval. The template argument Period is an instantiation of ratio that describes the size of the interval that each tick represents.

Members

Public Typedefs

Name	Description
duration::period Typedef	Represents a synonym for the template parameter Period.
duration::rep Typedef	Represents a synonym for the template parameter Rep.

Public Constructors

Name	Description
duration::duration Constructor	Constructs a duration object.

Public Methods

Name	Description
duration::count Method	Returns the number of clock ticks in the time interval.
duration::max Method	Static. Returns the maximum allowable value of template parameter Ref.
duration::min Method	Static. Returns the lowest allowable value of template parameter Ref.
duration::zero Method	Static. In effect, returns Rep(0).

Public Operators

Name	Description
duration::operator- Operator	Returns a copy of the duration object together with a negated tick count.
duration::operator-- Operator	Decrements the stored tick count.
duration::operator= Operator	Reduces the stored tick count modulo a specified value.
duration::operator*= Operator	Multiplies the stored tick count by a specified value.
duration::operator/= Operator	Divides the stored tick count by the tick count of a specified duration object.
duration::operator+ Operator	Returns *this.
duration::operator++ Operator	Increments the stored tick count.
duration::operator+= Operator	Adds the tick count of a specified duration object to the stored tick count.
duration::operator-= Operator	Subtracts the tick count of a specified duration object from the stored tick count.

Requirements

Header: chrono

Namespace: std::chrono

See Also

Reference

<chrono>

duration_values Structure

Other Resources

C++ Standard Library Header Files