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 PBoolean 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 PBoolean 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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