pqxx::basic_ilostream< CHAR, TRAITS > Class Template Reference

Input stream that gets its data from a large object. More...

#include <largeobject.hxx>

Inheritance diagram for pqxx::basic_ilostream< CHAR, TRAITS >:

Public Types
using	char_type = CHAR
using	traits_type = TRAITS
using	int_type = typename traits_type::int_type
using	pos_type = typename traits_type::pos_type
using	off_type = typename traits_type::off_type

Public Member Functions
	basic_ilostream (dbtransaction &T, largeobject O, largeobject::size_type BufSize=512)
	Create a basic_ilostream. More...
	basic_ilostream (dbtransaction &T, oid O, largeobject::size_type BufSize=512)
	Create a basic_ilostream. More...

Detailed Description

template<typename CHAR = char, typename TRAITS = std::char_traits<CHAR>>
class pqxx::basic_ilostream< CHAR, TRAITS >

Input stream that gets its data from a large object.

Use this class exactly as you would any other istream to read data from a large object. All formatting and streaming operations of std::istream are supported. What you'll typically want to use, however, is the ilostream alias (which defines a basic_ilostream for char). This is similar to how e.g. std::ifstream relates to std::basic_ifstream.

Currently only works for <char, std::char_traits<char>>.

Member Typedef Documentation

char_type

template<typename CHAR = char, typename TRAITS = std::char_traits<CHAR>>

using pqxx::basic_ilostream< CHAR, TRAITS >::char_type = CHAR

int_type

template<typename CHAR = char, typename TRAITS = std::char_traits<CHAR>>

using pqxx::basic_ilostream< CHAR, TRAITS >::int_type = typename traits_type::int_type

off_type

template<typename CHAR = char, typename TRAITS = std::char_traits<CHAR>>

using pqxx::basic_ilostream< CHAR, TRAITS >::off_type = typename traits_type::off_type

pos_type

template<typename CHAR = char, typename TRAITS = std::char_traits<CHAR>>

using pqxx::basic_ilostream< CHAR, TRAITS >::pos_type = typename traits_type::pos_type

traits_type

template<typename CHAR = char, typename TRAITS = std::char_traits<CHAR>>

using pqxx::basic_ilostream< CHAR, TRAITS >::traits_type = TRAITS

Constructor & Destructor Documentation

basic_ilostream() [1/2]

template<typename CHAR = char, typename TRAITS = std::char_traits<CHAR>>

pqxx::basic_ilostream< CHAR, TRAITS >::basic_ilostream	(	dbtransaction &	T,
		largeobject	O,
		largeobject::size_type	BufSize = 512
	)

Create a basic_ilostream.

Parameters

T	Transaction in which this stream is to exist
O	Large object to access
BufSize	Size of buffer to use internally (optional)

basic_ilostream() [2/2]

template<typename CHAR = char, typename TRAITS = std::char_traits<CHAR>>

pqxx::basic_ilostream< CHAR, TRAITS >::basic_ilostream	(	dbtransaction &	T,
		oid	O,
		largeobject::size_type	BufSize = 512
	)

Create a basic_ilostream.

Parameters

T	Transaction in which this stream is to exist
O	Identifier of a large object to access
BufSize	Size of buffer to use internally (optional)

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

• largeobject.hxx