Class template date

Class template date_duration

boost::date_time::date_duration — Duration type with date level resolution.

Synopsis

// In header: <boost/date_time/date_duration.hpp>

template<typename duration_rep_traits> 
class date_duration : private boost::less_than_comparable1< date_duration< duration_rep_traits >, boost::equality_comparable1< date_duration< duration_rep_traits >, boost::addable1< date_duration< duration_rep_traits >, boost::subtractable1< date_duration< duration_rep_traits >, boost::dividable2< date_duration< duration_rep_traits >, int > > > > >
{
public:
  // types
  typedef duration_rep_traits::int_type  duration_rep_type;
  typedef duration_rep_traits::impl_type duration_rep;     

  // construct/copy/destruct
  explicit date_duration(duration_rep);
  date_duration(special_values);
  date_duration(const date_duration< duration_rep_traits > &);

  // public member functions
  duration_rep get_rep() const;
  special_values as_special() const;
  bool is_special() const;
  duration_rep_type days() const;
  bool operator==(const date_duration &) const;
  bool operator<(const date_duration &) const;
  date_duration & operator-=(const date_duration &);
  date_duration & operator+=(const date_duration &);
  date_duration operator-() const;
  date_duration & operator/=(int);
  bool is_negative() const;

  // public static functions
  static date_duration unit();
};

Description

`date_duration` public construct/copy/destruct

explicit date_duration(duration_rep day_count);

Construct from a day count.

```
date_duration(special_values sv);
```
construct from special_values - only works when instantiated with duration_traits_adapted

date_duration(const date_duration< duration_rep_traits > & other);

Construct from another date_duration (Copy Constructor)

`date_duration` public member functions

```
duration_rep get_rep() const;
```
returns days_ as it's instantiated type - used for streaming
```
special_values as_special() const;
```
```
bool is_special() const;
```
```
duration_rep_type days() const;
```
returns days as value, not object.

bool operator==(const date_duration & rhs) const;

Equality.

bool operator<(const date_duration & rhs) const;

Less.

date_duration & operator-=(const date_duration & rhs);

Subtract another duration – result is signed.

date_duration & operator+=(const date_duration & rhs);

Add a duration – result is signed.

```
date_duration operator-() const;
```
unary- Allows for dd = -date_duration(2); -> dd == -2
```
date_duration & operator/=(int divisor);
```
Division operations on a duration with an integer.
```
bool is_negative() const;
```
return sign information

`date_duration` public static functions

```
static date_duration unit();
```
Returns the smallest duration – used by to calculate 'end'.

Class template date_duration

Synopsis

Description

date_duration public construct/copy/destruct

date_duration public member functions

date_duration public static functions

`date_duration` public construct/copy/destruct

`date_duration` public member functions

`date_duration` public static functions