Class template transform_iterator . Boost , Chapter 1. Boost.Compute , Reference

Class template transform_iterator

boost::compute::transform_iterator — A transform iterator adaptor.

Synopsis

// In header: <boost/compute/iterator/transform_iterator.hpp>
template<typename InputIterator, typename UnaryFunction> 
class transform_iterator {
public:
  // types
  typedef unspecified                 super_type;     
  typedef super_type::value_type      value_type;     
  typedef super_type::reference       reference;      
  typedef super_type::base_type       base_type;      
  typedef super_type::difference_type difference_type;
  typedef UnaryFunction               unary_function; 
  // construct/copy/destruct
  transform_iterator(InputIterator, UnaryFunction);
  transform_iterator(const transform_iterator< InputIterator, UnaryFunction > &);
  transform_iterator< InputIterator, UnaryFunction > & 
  operator=(const transform_iterator< InputIterator, UnaryFunction > &);
  ~transform_iterator();
  // public member functions
  size_t get_index() const;
  const buffer & get_buffer() const;
  template<typename IndexExpression> 
    unspecified operator[](const IndexExpression &) const;
  // private member functions
  reference dereference() const;
};

Description

Transform_iteratorАдаптер применяет унарную функцию к каждому элементу, полученному из базового итератора при отмене.

Например, для копирования из входного диапазона в выходной диапазон, принимая абсолютное значение каждого элемента:

См. также:

buffer_iterator, make_transform_iterator()

`transform_iterator` public construct/copy/destruct

transform_iterator(InputIteratoriterator,UnaryFunctiontransform);

transform_iterator(consttransform_iterator<InputIterator,UnaryFunction>&other);

transform_iterator<InputIterator,UnaryFunction>&
operator=(consttransform_iterator<InputIterator,UnaryFunction>&other);

<
```
~transform_iterator();
```
>

`transform_iterator` public member functions

<
```
size_tget_index()const;
```
>
<
```
constbuffer&get_buffer()const;
```
>

template<typenameIndexExpression>
 unspecifiedoperator[](constIndexExpression&expr)const;

`transform_iterator` private member functions

<
```
referencedereference()const;
```
>

Статья Class template transform_iterator раздела Chapter 1. Boost.Compute Reference может быть полезна для разработчиков на c++ и boost.

Class template transform_iterator

Boost , Chapter 1. Boost.Compute , Reference

Boost C++ Libraries

Class template transform_iterator

Synopsis

Description

transform_iterator public construct/copy/destruct

transform_iterator public member functions

transform_iterator private member functions

`transform_iterator` public construct/copy/destruct

`transform_iterator` public member functions

`transform_iterator` private member functions