Adler32 Class Reference

#include <Adler32.hpp>

List of all members.

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Detailed Description

This class is used to generate an Alder-32 checksum for a sequence of bytes.

Definition at line 44 of file Adler32.hpp.

Public Member Functions
	Adler32 ()
	Default constructor.
void	reset ()
	Resets the Adler32 to initial value.
unsigned int	getValue () const
	Returns the Adler32 value.
void	update (const std::string &str)
	Updates the Adler32 with specified array of bytes.
void	update (const std::auto_ptr< std::string > &str)
	Updates the Adler32 with specified array of bytes.
void	update (const char *buf, unsigned int len)
	Updates the Adler32 with specified array of bytes.
Protected Attributes
unsigned int	a
	The current sum.
unsigned int	b
	The current a sum.
Static Protected Attributes
const unsigned int	mod = 65521
	Largest prime less that 2^16.

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Constructor & Destructor Documentation

Adler32 (   )  [inline]

Default constructor. Definition at line 60 of file Adler32.hpp.

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Member Function Documentation

unsigned int getValue (   )  const [inline]

Returns the Adler32 value. Returns: The current checksum value. Definition at line 79 of file Adler32.hpp. Referenced by PNG::alder().

void reset (  void   )  [inline]

Resets the Adler32 to initial value. Definition at line 69 of file Adler32.hpp.

void update (  const char *  buf, unsigned int  len )

Updates the Adler32 with specified array of bytes. Parameters: buf  The byte array to update the Adler32 with. len  The number of bytes to use for the update.

void update (  const std::auto_ptr< std::string > &  str  )  [inline]

Updates the Adler32 with specified array of bytes. Parameters: str  The string to update the Adler32 with. Definition at line 99 of file Adler32.hpp.

void update (  const std::string &  str  )  [inline]

Updates the Adler32 with specified array of bytes. Parameters: str  The string to update the Adler32 with. Definition at line 89 of file Adler32.hpp. Referenced by PNG::alder().

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Member Data Documentation

unsigned int a [protected]

The current sum. Definition at line 51 of file Adler32.hpp.

unsigned int b [protected]

The current a sum. Definition at line 54 of file Adler32.hpp.

const unsigned int mod = 65521 [static, protected]

Largest prime less that 2^16. Definition at line 48 of file Adler32.hpp.

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

• Adler32.hpp

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