Ha_trx_info_list::Iterator Class Reference

Implements a forward iterator for Ha_trx_info_list. More...

#include <transaction_info.h>

Public Types
using	difference_type = std::ptrdiff_t
using	pointer = Ha_trx_info *
using	reference = Ha_trx_info &
using	iterator_category = std::forward_iterator_tag

Public Member Functions
	Iterator (Ha_trx_info *parent)
	Iterator (std::nullptr_t)
	Iterator (Iterator const &rhs)
virtual	~Iterator ()=default
Iterator &	operator= (const Iterator &rhs)
Iterator &	operator++ ()
reference	operator* () const
Iterator	operator++ (int)
pointer	operator-> () const
bool	operator== (Iterator const &rhs) const
bool	operator== (Ha_trx_info const *rhs) const
bool	operator== (Ha_trx_info const &rhs) const
bool	operator!= (Iterator const &rhs) const
bool	operator!= (Ha_trx_info const *rhs) const
bool	operator!= (Ha_trx_info const &rhs) const

Private Member Functions
Iterator &	set_next ()

Private Attributes
Ha_trx_info *	m_current {nullptr}
	Item this iterator is currently pointing to More...
Ha_trx_info *	m_next {nullptr}
	Next item in the list More...

Detailed Description

Implements a forward iterator for Ha_trx_info_list.

The Ha_trx_info_list methods begin and end complete the requirements for algorithms usage.

Since the container this iterator targets is a linked-list where the list and the list elements are the same, the invalidation rules are not the ones usually encontered in iterator classes. Invoking Ha_trx_info::reset(), which clears the pointer to next element in the list, doesn't invalidate the iterator, instead the pointer reference is kept by the iterator in order to allow the requirements for forward iterating to be valid. Therefore, although Ha_trx_info::reset() removes the element from the list, the iterator is no invalidated and iteration over the rest of the element is kept.

Member Typedef Documentation

difference_type

using Ha_trx_info_list::Iterator::difference_type = std::ptrdiff_t

iterator_category

using Ha_trx_info_list::Iterator::iterator_category = std::forward_iterator_tag

pointer

using Ha_trx_info_list::Iterator::pointer = Ha_trx_info *

reference

using Ha_trx_info_list::Iterator::reference = Ha_trx_info &

Constructor & Destructor Documentation

Iterator() [1/3]

Ha_trx_info_list::Iterator::Iterator

(

Ha_trx_info *

parent

)

Iterator() [2/3]

Ha_trx_info_list::Iterator::Iterator

(

std::nullptr_t

)

Iterator() [3/3]

Ha_trx_info_list::Iterator::Iterator

(

Iterator const &

rhs

)

~Iterator()

virtual Ha_trx_info_list::Iterator::~Iterator ( )

virtualdefault

Member Function Documentation

operator!=() [1/3]

bool Ha_trx_info_list::Iterator::operator!=

(

Ha_trx_info const &

rhs

)

const

operator!=() [2/3]

bool Ha_trx_info_list::Iterator::operator!=

(

Ha_trx_info const *

rhs

)

const

operator!=() [3/3]

bool Ha_trx_info_list::Iterator::operator!=

(

Iterator const &

rhs

)

const

operator*()

Ha_trx_info_list::Iterator::reference Ha_trx_info_list::Iterator::operator*

(

)

const

operator++() [1/2]

Ha_trx_info_list::Iterator & Ha_trx_info_list::Iterator::operator++

(

)

operator++() [2/2]

Ha_trx_info_list::Iterator Ha_trx_info_list::Iterator::operator++

(

int

)

operator->()

Ha_trx_info_list::Iterator::pointer Ha_trx_info_list::Iterator::operator->

(

)

const

operator=()

Ha_trx_info_list::Iterator & Ha_trx_info_list::Iterator::operator=

(

const Iterator &

rhs

)

operator==() [1/3]

bool Ha_trx_info_list::Iterator::operator==

(

Ha_trx_info const &

rhs

)

const

operator==() [2/3]

bool Ha_trx_info_list::Iterator::operator==

(

Ha_trx_info const *

rhs

)

const

operator==() [3/3]

bool Ha_trx_info_list::Iterator::operator==

(

Iterator const &

rhs

)

const

set_next()

Ha_trx_info_list::Iterator & Ha_trx_info_list::Iterator::set_next ( )

private

Member Data Documentation

m_current

Ha_trx_info* Ha_trx_info_list::Iterator::m_current {nullptr}

private

Item this iterator is currently pointing to

m_next

Ha_trx_info* Ha_trx_info_list::Iterator::m_next {nullptr}

private

Next item in the list

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

• sql/transaction_info.h
• sql/transaction_info.cc