SNMP::FloatBER Class Reference

BER object to handle float. More...

#include <src/BER.h>

Inheritance diagram for SNMP::FloatBER:

Collaboration diagram for SNMP::FloatBER:

Public Member Functions
	FloatBER (const float value, const unsigned int type=Type::Float)
	Creates a FloatBER object.
virtual void	encode (Stream &stream)
	Encodes FloatBER to stream.
virtual void	decode (Stream &stream, const uint8_t flag=Flag::None)
	Decodes FloatBER from stream.
virtual uint8_t *	encode (uint8_t *buffer)
	Encodes FloatBER to memory buffer.
virtual uint8_t *	decode (uint8_t *buffer)
	Decodes FloatBER from memory buffer.
const float	getValue () const
	Gets the FloatBER value.
void	setValue (const float value)
	Sets the FloatBER value.
Public Member Functions inherited from SNMP::BER
	BER (const unsigned int type)
	Creates a BER object.
virtual	~BER ()
	BER destructor.
template<typename T >
void	encodeNumeric (T value, Stream &stream)
	Encodes BER numeric value to stream.
template<typename T >
void	decodeNumeric (T *value, Stream &stream, const uint8_t flag=Flag::None)
	Decodes BER numeric value from stream.
template<typename T >
uint8_t *	encodeNumeric (T value, uint8_t *buffer)
	Encodes BER numeric value to memory buffer.
template<typename T >
uint8_t *	decodeNumeric (T *value, uint8_t *buffer, const uint8_t flag=Flag::None)
	Decodes BER numeric value from memory buffer.
template<typename T >
void	setNegative (T value)
	Computes BER length of a negative integer.
template<typename T >
void	setPositive (T value)
	Computes BER length of a positive integer.
const unsigned int	getType () const
	Gets the BER type.
const unsigned int	getLength () const
	Gets the BER length.
virtual const unsigned int	getSize (const bool refresh=false)
	Gets the size of the BER.
Public Member Functions inherited from SNMP::Base
void	encode7bits (uint32_t value, uint8_t *buffer, const uint8_t size)
	Encodes integer value to memory buffer.

Protected Attributes
float	_value
Protected Attributes inherited from SNMP::BER
Length	_length
Type	_type
Protected Attributes inherited from SNMP::Base
unsigned int	_size = 0

Static Protected Attributes
static constexpr uint8_t	LENGTH = 4

Additional Inherited Members
Static Public Member Functions inherited from SNMP::Base
static void	encode7bits (uint32_t value, Stream &stream, const uint8_t size)
	Encodes integer value to stream.
Protected Member Functions inherited from SNMP::BER
BER *	create (const Type &type)
	Creates a BER of given type.

Detailed Description

BER object to handle float.

IEEE 754 single precision 32-bit is used to represent float.

• Type is TYPE_FLOAT.
• Length is fixed, 4 bytes, short form encoding.
• Size is fixed, 6 bytes.

Example

Float	Encoding
0	48 04 00 00 00 00
+inf	48 04 7F 80 00 00
-inf	48 04 FF 80 00 00
NaN	48 04 FF FF FF FF

Note

FloatBER is never used alone but always embedded in an OpaqueBER as an OpaqueFloatBER.

Definition at line 2473 of file BER.h.

Constructor & Destructor Documentation

FloatBER()

SNMP::FloatBER::FloatBER ( const float value, const unsigned int type = Type::Float )

inline

Creates a FloatBER object.

Parameters

value	FloatBER float value.
type	FloatBER type.

Definition at line 2481 of file BER.h.

References SNMP::BER::_length, LENGTH, and setValue().

Member Function Documentation

decode() [1/2]

virtual void SNMP::FloatBER::decode ( Stream & stream, const uint8_t flag = Flag::None )

inlinevirtual

Decodes FloatBER from stream.

The inherited BER::decodeNumeric<T>() template function decodes type, length and value.

Parameters

stream	Stream to read from.
flag	Decoding flag.

Reimplemented from SNMP::BER.

Definition at line 2509 of file BER.h.

References _value, and SNMP::BER::decodeNumeric().

decode() [2/2]

virtual uint8_t * SNMP::FloatBER::decode ( uint8_t * buffer )

inlinevirtual

Decodes FloatBER from memory buffer.

The inherited BER::decodeNumeric<T>() template function decodes type, length and value.

Parameters

buffer

Pointer to the buffer.

Returns

Next position to be read in buffer.

Reimplemented from SNMP::BER.

Definition at line 2536 of file BER.h.

References _value, and SNMP::BER::decodeNumeric().

encode() [1/2]

virtual void SNMP::FloatBER::encode ( Stream & stream )

inlinevirtual

Encodes FloatBER to stream.

The inherited BER::encodeNumeric<T>() template function encodes type, length and value.

Parameters

stream

Stream to write to.

Reimplemented from SNMP::BER.

Definition at line 2496 of file BER.h.

References _value, and SNMP::BER::encodeNumeric().

encode() [2/2]

virtual uint8_t * SNMP::FloatBER::encode ( uint8_t * buffer )

inlinevirtual

Encodes FloatBER to memory buffer.

The inherited BER::encodeNumeric<T>() template function encodes type, length and value.

Parameters

buffer

Pointer to the buffer.

Returns

Next position to be written in buffer.

Reimplemented from SNMP::BER.

Definition at line 2522 of file BER.h.

References _value, and SNMP::BER::encodeNumeric().

getValue()

const float SNMP::FloatBER::getValue ( ) const

inline

Gets the FloatBER value.

Returns

FloatBER float value.

Definition at line 2547 of file BER.h.

References _value.

setValue()

void SNMP::FloatBER::setValue ( const float value )

inline

Sets the FloatBER value.

Parameters

value

FloatBER float value.

Definition at line 2556 of file BER.h.

References _value.

Referenced by FloatBER().

Member Data Documentation

_value

float SNMP::FloatBER::_value

protected

FloatBER float value.

Definition at line 2564 of file BER.h.

Referenced by decode(), decode(), encode(), encode(), getValue(), and setValue().

LENGTH

uint8_t SNMP::FloatBER::LENGTH = 4

staticconstexprprotected

Fixed length of the FloatBER.

Definition at line 2562 of file BER.h.

Referenced by FloatBER().

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

• BER.h