PTLib
Version 2.10.4
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Class for ASN floating point type. More...
#include <asner.h>
Public Member Functions | |
PASN_Real (double val=0) | |
PASN_Real (unsigned tag, TagClass tagClass, double val=0) | |
PASN_Real & | operator= (double val) |
operator double () const | |
double | GetValue () const |
void | SetValue (double v) |
virtual Comparison | Compare (const PObject &obj) const |
Compare the two objects and return their relative rank. | |
virtual PObject * | Clone () const |
Create a copy of the class on the heap. | |
virtual void | PrintOn (ostream &strm) const |
Output the contents of the object to the stream. | |
virtual PString | GetTypeAsString () const |
Return a string giving the type of the object. | |
virtual PINDEX | GetDataLength () const |
virtual PBoolean | Decode (PASN_Stream &) |
virtual void | Encode (PASN_Stream &) const |
Protected Attributes | |
double | value |
Class for ASN floating point type.
PASN_Real::PASN_Real | ( | double | val = 0 | ) |
PASN_Real::PASN_Real | ( | unsigned | tag, |
TagClass | tagClass, | ||
double | val = 0 |
||
) |
virtual PObject* PASN_Real::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.
Reimplemented from PObject.
virtual Comparison PASN_Real::Compare | ( | const PObject & | obj | ) | const [virtual] |
Compare the two objects and return their relative rank.
This function is usually overridden by descendent classes to yield the ranking according to the semantics of the object.
The default function is to use the CompareObjectMemoryDirect()
function to do a byte wise memory comparison of the two objects.
LessThan
, EqualTo
or GreaterThan
according to the relative rank of the objects. Reimplemented from PObject.
virtual PBoolean PASN_Real::Decode | ( | PASN_Stream & | ) | [virtual] |
Implements PASN_Object.
virtual void PASN_Real::Encode | ( | PASN_Stream & | ) | const [virtual] |
Implements PASN_Object.
virtual PINDEX PASN_Real::GetDataLength | ( | ) | const [virtual] |
Implements PASN_Object.
virtual PString PASN_Real::GetTypeAsString | ( | ) | const [virtual] |
Return a string giving the type of the object.
Implements PASN_Object.
double PASN_Real::GetValue | ( | ) | const [inline] |
References value.
PASN_Real::operator double | ( | ) | const [inline] |
References value.
virtual void PASN_Real::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.
void PASN_Real::SetValue | ( | double | v | ) | [inline] |
References value.
double PASN_Real::value [protected] |
Referenced by GetValue(), operator double(), operator=(), and SetValue().