flow::CountedValueViewIterator< T > Class Template Reference

Iterator that returns a constant value a fixed number of times. Useful for creating a virtual range of repeated values without overhead. More...

#include <flow_counted_value_view_iterator.h>

Public Types
using	value_type = T
using	reference = const T&
using	pointer = const T*
using	difference_type = std::ptrdiff_t
using	iterator_category = std::forward_iterator_tag

Public Member Functions
	CountedValueViewIterator () noexcept
	CountedValueViewIterator (const T &value, std::size_t count=0) noexcept
reference	operator* () const
pointer	operator-> () const
CountedValueViewIterator &	operator++ ()
CountedValueViewIterator	operator++ (int)

Private Attributes
const T *	value_
std::size_t	count_

Friends
bool	operator== (const CountedValueViewIterator &lhs, const CountedValueViewIterator &rhs)
bool	operator!= (const CountedValueViewIterator &lhs, const CountedValueViewIterator &rhs)

Detailed Description

template<typename T>
class flow::CountedValueViewIterator< T >

Iterator that returns a constant value a fixed number of times. Useful for creating a virtual range of repeated values without overhead.

Definition at line 11 of file flow_counted_value_view_iterator.h.

Member Typedef Documentation

difference_type

template<typename T>

using flow::CountedValueViewIterator< T >::difference_type = std::ptrdiff_t

Definition at line 19 of file flow_counted_value_view_iterator.h.

iterator_category

template<typename T>

using flow::CountedValueViewIterator< T >::iterator_category = std::forward_iterator_tag

Definition at line 20 of file flow_counted_value_view_iterator.h.

pointer

template<typename T>

using flow::CountedValueViewIterator< T >::pointer = const T*

Definition at line 18 of file flow_counted_value_view_iterator.h.

reference

template<typename T>

using flow::CountedValueViewIterator< T >::reference = const T&

Definition at line 17 of file flow_counted_value_view_iterator.h.

value_type

template<typename T>

using flow::CountedValueViewIterator< T >::value_type = T

Definition at line 16 of file flow_counted_value_view_iterator.h.

Constructor & Destructor Documentation

CountedValueViewIterator() [1/2]

template<typename T>

flow::CountedValueViewIterator< T >::CountedValueViewIterator ( )

inlinenoexcept

Definition at line 22 of file flow_counted_value_view_iterator.h.

      : value_(nullptr), count_(0) {
    }

References count_, and value_.

Referenced by operator!=, operator++(), operator++(), and operator==.

CountedValueViewIterator() [2/2]

template<typename T>

flow::CountedValueViewIterator< T >::CountedValueViewIterator ( const T & value, std::size_t count = 0 )

inlinenoexcept

Definition at line 26 of file flow_counted_value_view_iterator.h.

      : value_(&value), count_(count) {
    }

References count_, and value_.

Member Function Documentation

operator*()

template<typename T>

reference flow::CountedValueViewIterator< T >::operator* ( ) const

inline

Definition at line 30 of file flow_counted_value_view_iterator.h.

                                {
      assert(value_ && "no value");
      return *value_;
    }

References value_.

operator++() [1/2]

template<typename T>

CountedValueViewIterator & flow::CountedValueViewIterator< T >::operator++ ( )

inline

Definition at line 40 of file flow_counted_value_view_iterator.h.

                                           {
      assert(count_ > 0 && "negative count");
      --count_;
      return *this;
    }

References count_, and CountedValueViewIterator().

operator++() [2/2]

template<typename T>

CountedValueViewIterator flow::CountedValueViewIterator< T >::operator++ ( int )

inline

Definition at line 46 of file flow_counted_value_view_iterator.h.

                                             {
      CountedValueViewIterator tmp = *this;
      --count_;
      return tmp;
    }

References count_, and CountedValueViewIterator().

operator->()

template<typename T>

pointer flow::CountedValueViewIterator< T >::operator-> ( ) const

inline

Definition at line 35 of file flow_counted_value_view_iterator.h.

                               {
      assert(value_ && "no value");
      return value_;
    }

References value_.

Friends And Related Symbol Documentation

operator!=

template<typename T>

bool operator!= ( const CountedValueViewIterator< T > & lhs, const CountedValueViewIterator< T > & rhs )

friend

Definition at line 56 of file flow_counted_value_view_iterator.h.

                                                                                                     {
      return !(lhs == rhs);
    }

References CountedValueViewIterator().

operator==

template<typename T>

bool operator== ( const CountedValueViewIterator< T > & lhs, const CountedValueViewIterator< T > & rhs )

friend

Definition at line 52 of file flow_counted_value_view_iterator.h.

                                                                                                     {
      return lhs.count_ == rhs.count_ && lhs.value_ == rhs.value_;
    }

References count_, CountedValueViewIterator(), and value_.

Member Data Documentation

count_

template<typename T>

std::size_t flow::CountedValueViewIterator< T >::count_

private

Definition at line 13 of file flow_counted_value_view_iterator.h.

Referenced by CountedValueViewIterator(), CountedValueViewIterator(), operator++(), operator++(), and operator==.

value_

template<typename T>

const T* flow::CountedValueViewIterator< T >::value_

private

Definition at line 12 of file flow_counted_value_view_iterator.h.

Referenced by CountedValueViewIterator(), CountedValueViewIterator(), operator*(), operator->(), and operator==.

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The documentation for this class was generated from the following file:

• flow_counted_value_view_iterator.h