PASN_Null Class Reference

#include <asner.h>

Inheritance diagram for PASN_Null:
PASN_Object PObject

List of all members.

Public Member Functions

 PASN_Null (unsigned tag=UniversalNull, TagClass tagClass=UniversalTagClass)
virtual Comparison Compare (const PObject &obj) const
virtual PObjectClone () const
virtual void PrintOn (ostream &strm) const
virtual PString GetTypeAsString () const
virtual PINDEX GetDataLength () const
virtual BOOL Decode (PASN_Stream &)
virtual void Encode (PASN_Stream &) const

Detailed Description

Class for ASN Null type.


Constructor & Destructor Documentation

PASN_Null::PASN_Null ( unsigned  tag = UniversalNull,
TagClass  tagClass = UniversalTagClass 
)

Member Function Documentation

virtual PObject* PASN_Null::Clone (  )  const [virtual]

Create a copy of the class on the heap. The exact semantics of the descendent class determine what is required to make a duplicate of the instance. Not all classes can even { do} a clone operation.

The main user of the clone function is the PDictionary# class as it requires copies of the dictionary keys.

The default behaviour is for this function to assert.

Returns:
pointer to new copy of the class instance.

Reimplemented from PObject.

virtual Comparison PASN_Null::Compare ( const PObject obj  )  const [virtual]
virtual BOOL PASN_Null::Decode ( PASN_Stream  )  [virtual]

Implements PASN_Object.

virtual void PASN_Null::Encode ( PASN_Stream  )  const [virtual]

Implements PASN_Object.

virtual PINDEX PASN_Null::GetDataLength (  )  const [virtual]

Implements PASN_Object.

virtual PString PASN_Null::GetTypeAsString (  )  const [virtual]

Return a string giving the type of the object

Implements PASN_Object.

virtual void PASN_Null::PrintOn ( ostream &  strm  )  const [virtual]

Output the contents of the object to the stream. The exact output is dependent on the exact semantics of the descendent class. This is primarily used by the standard operator<<# function.

The default behaviour is to print the class name.

Reimplemented from PObject.


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

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