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## Class template year_functor

boost::date_time::year_functor — Functor to iterate by a year adjusting for leap years.

## Synopsis

    template<typename date_type>
    class year_functor {
    public:
      // types
      typedef date_type::duration_type duration_type;

      // construct/copy/destruct
      year_functor(int);

      // public member functions
      duration_type get_offset(const date_type &) const;
      duration_type get_neg_offset(const date_type &) const;
    };

## Description

### `year_functor` construct/copy/destruct

1.     year_functor(int f);

### `year_functor` public member functions

1.     duration_type get_offset(const date_type & d) const;

2.     duration_type get_neg_offset(const date_type & d) const;

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