Fletcher Class Reference

#include <elm/checksum/Fletcher.h>

Public Member Functions
	Fletcher (void)
virtual	~Fletcher (void)
t::uint32	sum (void)
void	put (io::InStream &in)
void	put (const void *buffer, int length)
void	put (const CString &str)
void	put (const String &str)
Fletcher &	operator<< (const char *str)
Fletcher &	operator<< (const CString &str)
Fletcher &	operator<< (const String &str)
template<class T >
Fletcher &	operator<< (const T &value)
virtual int	write (const char *buffer, int size)
virtual int	flush (void)
virtual cstring	lastErrorMessage (void)

Detailed Description

Apply the Fletcher algorithm (http://en.wikipedia.org/wiki/Fletcher%27s_checksum) to compute a checksum.

Data are checksummed calling any one of the put() methods. When all data has been checksummed, the checksum value is returned by sum.

Constructor & Destructor Documentation

Fletcher()

Fletcher

(

void

)

Build a new Fletcher checksum builder.

~Fletcher()

~Fletcher ( void  )

virtual

Member Function Documentation

flush()

int flush ( void  )

virtual

lastErrorMessage()

cstring lastErrorMessage ( void  )

virtual

operator<<() [1/4]

Fletcher& operator<< ( const char *  str )

inline

References Fletcher::put(), and elm::str().

operator<<() [2/4]

Fletcher& operator<< ( const CString &  str )

inline

References Fletcher::put(), and elm::str().

operator<<() [3/4]

Fletcher& operator<< ( const String &  str )

inline

References Fletcher::put(), and elm::str().

operator<<() [4/4]

Fletcher& operator<< ( const T &  value )

inline

References Fletcher::put().

put() [1/4]

void put

(

const CString &

str

)

Put a C string in the checksum.

Parameters

str	C string to put in.

References Fletcher::put(), and elm::str().

put() [2/4]

void put

(

const String &

str

)

Put a string in the checksum.

Parameters

str	String to put in.

References Fletcher::put(), and elm::str().

put() [3/4]

void put	(	const void *	block,
		int	length
	)

Put a data block in the checksum.

Parameters

block	Block address.
length	Block length.

References Fletcher::put().

put() [4/4]

void put

(

io::InStream &

in

)

Checksum the given stream.

Parameters

in	Stream to checksum.

Referenced by Fletcher::operator<<(), Fletcher::put(), and Fletcher::write().

sum()

t::uint32 sum

(

void

)

Return the checksum.

Parameters

checksum

Current checksum.

write()

int write ( const char *  buffer, int  size  )

virtual

References Fletcher::put().

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

• include/elm/checksum/Fletcher.h
• src/checksum_Fletcher.cpp