PASN_Null Class Reference
#include <asner.h>
Public Member Functions | |
| PASN_Null (unsigned tag=UniversalNull, TagClass tagClass=UniversalTagClass) | |
| virtual Comparison | Compare (const PObject &obj) const |
| virtual PObject * | Clone () 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:
