libpqxx
4.0.1
|
Input stream that gets its data from a large object. More...
#include <largeobject.hxx>
Inherits std::istream.
Public Types | |
typedef CHAR | char_type |
typedef TRAITS | traits_type |
typedef traits_type::int_type | int_type |
typedef traits_type::pos_type | pos_type |
typedef traits_type::off_type | off_type |
Public Member Functions | |
basic_ilostream (dbtransaction &T, largeobject O, largeobject::size_type BufSize=512) | |
Create a basic_ilostream. | |
basic_ilostream (dbtransaction &T, oid O, largeobject::size_type BufSize=512) | |
Create a basic_ilostream. |
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 typedef (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> >
.
typedef CHAR pqxx::basic_ilostream< CHAR, TRAITS >::char_type |
typedef traits_type::int_type pqxx::basic_ilostream< CHAR, TRAITS >::int_type |
typedef traits_type::off_type pqxx::basic_ilostream< CHAR, TRAITS >::off_type |
typedef traits_type::pos_type pqxx::basic_ilostream< CHAR, TRAITS >::pos_type |
typedef TRAITS pqxx::basic_ilostream< CHAR, TRAITS >::traits_type |
pqxx::basic_ilostream< CHAR, TRAITS >::basic_ilostream | ( | dbtransaction & | T, |
largeobject | O, | ||
largeobject::size_type | BufSize = 512 |
||
) |
Create a basic_ilostream.
T | Transaction in which this stream is to exist |
O | Large object to access |
BufSize | Size of buffer to use internally (optional) |
pqxx::basic_ilostream< CHAR, TRAITS >::basic_ilostream | ( | dbtransaction & | T, |
oid | O, | ||
largeobject::size_type | BufSize = 512 |
||
) |
Create a basic_ilostream.
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) |