Boost C++ Libraries

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Class template date_itr_base

boost::date_time::date_itr_base — Base date iterator type.

Synopsis

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

template<typename date_type> 
class date_itr_base {
public:
  // types
  typedef date_type::duration_type duration_type;    
  typedef date_type                value_type;       
  typedef std::input_iterator_tag  iterator_category;

  // construct/copy/destruct
  date_itr_base(date_type);
  ~date_itr_base();

  // public member functions
  date_itr_base & operator++();
  date_itr_base & operator--();
  virtual duration_type get_offset(const date_type &) const = 0;
  virtual duration_type get_neg_offset(const date_type &) const = 0;
  const date_type & operator *() const;
  const date_type * operator->() const;
  bool operator<(const date_type &) const;
  bool operator<=(const date_type &) const;
  bool operator>(const date_type &) const;
  bool operator>=(const date_type &) const;
  bool operator==(const date_type &) const;
  bool operator!=(const date_type &) const;
};

Description

This class provides the skeleton for the creation of iterators. New and interesting interators can be created by plugging in a new function that derives the next value from the current state. generation of various types of -based information.

Template Parameters

date_type

The date_type is a concrete date_type. The date_type must define a duration_type and a calendar_type.

`date_itr_base` public construct/copy/destruct

```
date_itr_base(date_type d);
```
```
~date_itr_base();
```

`date_itr_base` public member functions

```
date_itr_base & operator++();
```
```
date_itr_base & operator--();
```

virtual duration_type get_offset(const date_type & current) const = 0;

virtual duration_type get_neg_offset(const date_type & current) const = 0;

```
const date_type & operator *() const;
```
```
const date_type * operator->() const;
```

bool operator<(const date_type & d) const;

bool operator<=(const date_type & d) const;

bool operator>(const date_type & d) const;

bool operator>=(const date_type & d) const;

bool operator==(const date_type & d) const;

bool operator!=(const date_type & d) const;