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

Input stream that gets its data from a result field. More...

#include <result.hxx>

List of all members.

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_fieldstream (const result::field &F)


Detailed Description

template<typename CHAR = char, typename TRAITS = PGSTD::char_traits<CHAR>>
class pqxx::basic_fieldstream< CHAR, TRAITS >

Input stream that gets its data from a result field.

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

When reading bools, ints, floats etc. from a field, bear in mind that bools are represented as 'f' or 't' (for false or true, respectively), and that all other non-string types are rendered in the default C locale. If there is any chance of your program running in a different locale, you'll need to set the locale to "C" explicitly while parsing fields.

This class has only been tested for the char type (and its default traits).


Member Typedef Documentation

template<typename CHAR = char, typename TRAITS = PGSTD::char_traits<CHAR>>
typedef CHAR pqxx::basic_fieldstream< CHAR, TRAITS >::char_type
 

template<typename CHAR = char, typename TRAITS = PGSTD::char_traits<CHAR>>
typedef traits_type::int_type pqxx::basic_fieldstream< CHAR, TRAITS >::int_type
 

template<typename CHAR = char, typename TRAITS = PGSTD::char_traits<CHAR>>
typedef traits_type::off_type pqxx::basic_fieldstream< CHAR, TRAITS >::off_type
 

template<typename CHAR = char, typename TRAITS = PGSTD::char_traits<CHAR>>
typedef traits_type::pos_type pqxx::basic_fieldstream< CHAR, TRAITS >::pos_type
 

template<typename CHAR = char, typename TRAITS = PGSTD::char_traits<CHAR>>
typedef TRAITS pqxx::basic_fieldstream< CHAR, TRAITS >::traits_type
 


Constructor & Destructor Documentation

template<typename CHAR = char, typename TRAITS = PGSTD::char_traits<CHAR>>
pqxx::basic_fieldstream< CHAR, TRAITS >::basic_fieldstream const result::field F  ) 
 


The documentation for this class was generated from the following file:
Generated on Thu Aug 12 23:56:30 2004 for libpqxx by doxygen 1.3.8