libpqxx  4.0.1
pqxx::const_tuple_iterator Class Reference

Iterator for fields in a tuple. Use as tuple::const_iterator. More...

#include <tuple.hxx>

Inheritance diagram for pqxx::const_tuple_iterator:
pqxx::field pqxx::const_reverse_tuple_iterator

Public Types

typedef tuple::size_type size_type
typedef tuple::difference_type difference_type
typedef field reference
- Public Types inherited from pqxx::field
typedef size_t size_type

Public Member Functions

 const_tuple_iterator (const tuple &T, tuple::size_type C) throw ()
 const_tuple_iterator (const field &F) throw ()
Dereferencing operators
pointer operator-> () const
reference operator* () const
Manipulations
const_tuple_iterator operator++ (int)
const_tuple_iteratoroperator++ ()
const_tuple_iterator operator-- (int)
const_tuple_iteratoroperator-- ()
const_tuple_iteratoroperator+= (difference_type i)
const_tuple_iteratoroperator-= (difference_type i)
Comparisons
bool operator== (const const_tuple_iterator &i) const
bool operator!= (const const_tuple_iterator &i) const
bool operator< (const const_tuple_iterator &i) const
bool operator<= (const const_tuple_iterator &i) const
bool operator> (const const_tuple_iterator &i) const
bool operator>= (const const_tuple_iterator &i) const
- Public Member Functions inherited from pqxx::field
 field (const tuple &T, tuple_size_type C) throw ()
 Constructor.
template<>
bool to (const char *&Obj) const
 Specialization: to(const char *&).
bool operator== (const field &) const
 Byte-by-byte comparison of two fields (all nulls are considered equal)
bool operator!= (const field &rhs) const
 Byte-by-byte comparison (all nulls are considered equal)
const char * name () const
 Column name.
oid type () const
 Column type.
oid table () const
 What table did this column come from?
tuple_size_type num () const
tuple_size_type table_column () const
 What column number in its originating table did this column come from?
const char * c_str () const
 Read as plain C string.
template<typename T >
bool to (T &Obj) const
 Read value into Obj; or leave Obj untouched and return false if null.
template<typename T >
bool operator>> (T &Obj) const
 Read value into Obj; or leave Obj untouched and return false if null.
template<typename T >
bool to (T &Obj, const T &Default) const
 Read value into Obj; or use Default & return false if null.
template<typename T >
as (const T &Default) const
 Return value as object of given type, or Default if null.
template<typename T >
as () const
 Return value as object of given type, or throw exception if null.
bool is_null () const throw ()
size_type size () const throw ()

Arithmetic operators

const_tuple_iterator operator+ (difference_type) const
const_tuple_iterator operator- (difference_type) const
difference_type operator- (const_tuple_iterator) const
const_tuple_iterator operator+ (difference_type, const_tuple_iterator)

Additional Inherited Members

- Protected Member Functions inherited from pqxx::field
const resulthome () const throw ()
size_t idx () const throw ()
tuple_size_type col () const throw ()
- Protected Attributes inherited from pqxx::field
tuple_size_type m_col

Detailed Description

Iterator for fields in a tuple. Use as tuple::const_iterator.

Member Typedef Documentation

Constructor & Destructor Documentation

pqxx::const_tuple_iterator::const_tuple_iterator ( const tuple T,
tuple::size_type  C 
) throw ()
pqxx::const_tuple_iterator::const_tuple_iterator ( const field F) throw ()

Member Function Documentation

bool pqxx::const_tuple_iterator::operator!= ( const const_tuple_iterator i) const
reference pqxx::const_tuple_iterator::operator* ( ) const
const_tuple_iterator pqxx::const_tuple_iterator::operator+ ( difference_type  o) const
pqxx::const_tuple_iterator pqxx::const_tuple_iterator::operator++ ( int  )
const_tuple_iterator& pqxx::const_tuple_iterator::operator++ ( )
const_tuple_iterator& pqxx::const_tuple_iterator::operator+= ( difference_type  i)
const_tuple_iterator pqxx::const_tuple_iterator::operator- ( difference_type  o) const
const_tuple_iterator::difference_type pqxx::const_tuple_iterator::operator- ( const_tuple_iterator  i) const

References pqxx::field::num().

pqxx::const_tuple_iterator pqxx::const_tuple_iterator::operator-- ( int  )
const_tuple_iterator& pqxx::const_tuple_iterator::operator-- ( )
const_tuple_iterator& pqxx::const_tuple_iterator::operator-= ( difference_type  i)
pointer pqxx::const_tuple_iterator::operator-> ( ) const
bool pqxx::const_tuple_iterator::operator< ( const const_tuple_iterator i) const
bool pqxx::const_tuple_iterator::operator<= ( const const_tuple_iterator i) const
bool pqxx::const_tuple_iterator::operator== ( const const_tuple_iterator i) const
bool pqxx::const_tuple_iterator::operator> ( const const_tuple_iterator i) const
bool pqxx::const_tuple_iterator::operator>= ( const const_tuple_iterator i) const

Friends And Related Function Documentation


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