pqxx::internal::stream_query_iterator< TYPE > Class Template Reference

Minimal iterator for stream_query. More...

#include <stream_query_impl.hxx>

Public Types
using	value_type = std::tuple< TYPE... >
using	difference_type = long

Public Member Functions
	stream_query_iterator (stream_t &home, sl loc)
	stream_query_iterator (stream_query_iterator const &)=delete
	stream_query_iterator (stream_query_iterator &&)=delete
	~stream_query_iterator ()=default
stream_query_iterator &	operator= (stream_query_iterator const &)=delete
stream_query_iterator &	operator= (stream_query_iterator &&)=delete
stream_query_iterator &	operator++ () &
	Pre-increment. More...
value_type	operator* () const
	Dereference. There's no caching in here, so don't repeat calls. More...
bool	operator== (stream_query_end_iterator) const noexcept
	Are we at the end? More...
bool	operator!= (stream_query_end_iterator) const noexcept
	Do we have more iterations to go? More...

Friends
bool	operator== (stream_query_end_iterator, stream_query_iterator const &i)
bool	operator!= (stream_query_end_iterator, stream_query_iterator const &i)

Detailed Description

template<typename... TYPE>
class pqxx::internal::stream_query_iterator< TYPE >

Minimal iterator for stream_query.

Just barely enough to support range-based "for" loops on stream_query. It's so minimal, it isn't even an input_iterator.

Do not assume that anything beyond that works: post-increment, comparison to anything other than end(), assignment between iterators on different streams, and probably several more common and sensible things to do with iterators are all anathema here.

Member Typedef Documentation

difference_type

template<typename... TYPE>

using pqxx::internal::stream_query_iterator< TYPE >::difference_type = long

value_type

template<typename... TYPE>

using pqxx::internal::stream_query_iterator< TYPE >::value_type = std::tuple<TYPE...>

Constructor & Destructor Documentation

stream_query_iterator() [1/3]

template<typename... TYPE>

pqxx::internal::stream_query_iterator< TYPE >::stream_query_iterator ( stream_t &  home, sl  loc  )

inline

stream_query_iterator() [2/3]

template<typename... TYPE>

pqxx::internal::stream_query_iterator< TYPE >::stream_query_iterator ( stream_query_iterator< TYPE > const &  )

delete

stream_query_iterator() [3/3]

template<typename... TYPE>

pqxx::internal::stream_query_iterator< TYPE >::stream_query_iterator ( stream_query_iterator< TYPE > &&  )

delete

~stream_query_iterator()

template<typename... TYPE>

pqxx::internal::stream_query_iterator< TYPE >::~stream_query_iterator ( )

default

Member Function Documentation

operator!=()

template<typename... TYPE>

bool pqxx::internal::stream_query_iterator< TYPE >::operator!= ( stream_query_end_iterator  ) const

inlinenoexcept

Do we have more iterations to go?

operator*()

template<typename... TYPE>

value_type pqxx::internal::stream_query_iterator< TYPE >::operator* ( ) const

inline

Dereference. There's no caching in here, so don't repeat calls.

operator++()

template<typename... TYPE>

stream_query_iterator& pqxx::internal::stream_query_iterator< TYPE >::operator++ ( ) &

inline

Pre-increment.

We don't even support post-increment, because we only do what's needed for range-based for loops.

operator=() [1/2]

template<typename... TYPE>

stream_query_iterator& pqxx::internal::stream_query_iterator< TYPE >::operator= ( stream_query_iterator< TYPE > &&  )

delete

operator=() [2/2]

template<typename... TYPE>

stream_query_iterator& pqxx::internal::stream_query_iterator< TYPE >::operator= ( stream_query_iterator< TYPE > const &  )

delete

operator==()

template<typename... TYPE>

bool pqxx::internal::stream_query_iterator< TYPE >::operator== ( stream_query_end_iterator  ) const

inlinenoexcept

Are we at the end?

Friends And Related Function Documentation

operator!=

template<typename... TYPE>

bool operator!= ( stream_query_end_iterator  , stream_query_iterator< TYPE > const &  i  )

friend

operator==

template<typename... TYPE>

bool operator== ( stream_query_end_iterator  , stream_query_iterator< TYPE > const &  i  )

friend

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

• include/pqxx/internal/stream_query_impl.hxx