pqxx::internal::PQAlloc< T > Class Template Reference

Reference-counted smart pointer to libpq-allocated object. More...

#include <util.hxx>

List of all members.

Public Types
typedef T	content_type
Public Member Functions
	PQAlloc () throw ()
	PQAlloc (const PQAlloc &rhs) throw ()
	~PQAlloc () throw ()
PQAlloc &	operator= (const PQAlloc &rhs) throw ()
	PQAlloc (T *obj) throw ()
	Assume ownership of a pointer.
void	swap (PQAlloc &rhs) throw ()
PQAlloc &	operator= (T *obj) throw ()
	operator bool () const throw ()
	Is this pointer non-null?
bool	operator! () const throw ()
	Is this pointer null?
T *	operator-> () const throw (PGSTD::logic_error)
	Dereference pointer.
T &	operator * () const throw (PGSTD::logic_error)
	Dereference pointer.
T *	c_ptr () const throw ()
	Obtain underlying pointer.
void	clear () throw ()

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Detailed Description

template<typename T>
class pqxx::internal::PQAlloc< T >

Reference-counted smart pointer to libpq-allocated object.

Ownership policy is simple: object dies when PQAlloc object's value does. If the available PostgreSQL development files supply PQfreemem() or PQfreeNotify(), this is used to free the memory. If not, free() is used instead. This matters on Windows, where memory allocated by a DLL must be freed by the same DLL.

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Member Typedef Documentation

template<typename T> typedef T pqxx::internal::PQAlloc< T >::content_type

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Constructor & Destructor Documentation

template<typename T> pqxx::internal::PQAlloc< T >::PQAlloc (   )  throw ()

template<typename T> pqxx::internal::PQAlloc< T >::PQAlloc (  const PQAlloc< T > &  rhs  )  throw ()

template<typename T> pqxx::internal::PQAlloc< T >::~PQAlloc (   )  throw ()

template<typename T> pqxx::internal::PQAlloc< T >::PQAlloc (  T *  obj  )  throw () [explicit]

Assume ownership of a pointer. Warning: Don't to this more than once for a given object!

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Member Function Documentation

template<typename T> T* pqxx::internal::PQAlloc< T >::c_ptr (   )  const throw ()

Obtain underlying pointer. Ownership of the pointer's memory remains with the PQAlloc object Reimplemented in pqxx::binarystring.

template<typename T> void pqxx::internal::PQAlloc< T >::clear (   )  throw ()

template<typename T> T& pqxx::internal::PQAlloc< T >::operator * (   )  const throw (PGSTD::logic_error)

Dereference pointer. Throws a logic_error if the pointer is null.

template<typename T> pqxx::internal::PQAlloc< T >::operator bool (   )  const throw ()

Is this pointer non-null?

template<typename T> bool pqxx::internal::PQAlloc< T >::operator! (   )  const throw ()

Is this pointer null?

template<typename T> T* pqxx::internal::PQAlloc< T >::operator-> (   )  const throw (PGSTD::logic_error)

Dereference pointer. Throws a logic_error if the pointer is null.

template<typename T> PQAlloc& pqxx::internal::PQAlloc< T >::operator= (  T *  obj  )  throw ()

template<typename T> PQAlloc& pqxx::internal::PQAlloc< T >::operator= (  const PQAlloc< T > &  rhs  )  throw ()

template<typename T> void pqxx::internal::PQAlloc< T >::swap (  PQAlloc< T > &  rhs  )  throw ()

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

• util.hxx

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