Implements a CRC32 checksum generator More...

Inheritance diagram for DotZLib.CRC32Checksum:

Public Member Functions
	CRC32Checksum ()
	Initializes a new instance of the CRC32 checksum generator More...

	CRC32Checksum (uint initialValue)
	Initializes a new instance of the CRC32 checksum generator with a specified value More...

override void	Update (byte[] data, int offset, int count)
	Updates the current checksum with part of an array of bytes More...

Public Member Functions inherited from DotZLib.ChecksumGeneratorBase
	ChecksumGeneratorBase ()
	Initializes a new instance of the checksum generator base - the current checksum is set to zero More...

	ChecksumGeneratorBase (uint initialValue)
	Initializes a new instance of the checksum generator basewith a specified value More...

void	Reset ()
	Resets the current checksum to zero More...

void	Update (byte[] data)
	Updates the current checksum with an array of bytes. More...

void	Update (string data)
	Updates the current checksum with the data from a string More...

void	Update (string data, Encoding encoding)
	Updates the current checksum with the data from a string, using a specific encoding More...

Private Member Functions
static uint	crc32 (uint crc, int data, uint length)

Additional Inherited Members
Protected Attributes inherited from DotZLib.ChecksumGeneratorBase
uint	_current
	The value of the current checksum More...

Properties inherited from DotZLib.ChecksumGeneratorBase
uint	Value `[get]`
	Gets the current checksum value More...

Properties inherited from DotZLib.ChecksumGenerator
uint	Value `[get]`
	Gets the current value of the checksum More...

Detailed Description

Implements a CRC32 checksum generator

Definition at line 104 of file ChecksumImpl.cs.

Constructor & Destructor Documentation

◆ CRC32Checksum() [1/2]

DotZLib.CRC32Checksum.CRC32Checksum ( )

inline

Initializes a new instance of the CRC32 checksum generator

Definition at line 116 of file ChecksumImpl.cs.

116 : base() {}

◆ CRC32Checksum() [2/2]

DotZLib.CRC32Checksum.CRC32Checksum ( uint initialValue )

inline

Initializes a new instance of the CRC32 checksum generator with a specified value

Parameters

initialValue The value to set the current checksum to

Definition at line 122 of file ChecksumImpl.cs.

122 : base(initialValue) {}

Member Function Documentation

◆ crc32()

static uint DotZLib.CRC32Checksum.crc32	(	uint	crc,
		int	data,
		uint	length
	)

private

Referenced by DotZLib.CRC32Checksum.Update().

◆ Update()

override void DotZLib.CRC32Checksum.Update	(	byte[]	data,
		int	offset,
		int	count
	)

inlinevirtual

Updates the current checksum with part of an array of bytes

Parameters

data	The data to update the checksum with
offset	Where in `data` to start updating
count	The number of bytes from `data` to use

Exceptions

ArgumentException	The sum of offset and count is larger than the length of `data`
NullReferenceException	`data` is a null reference
ArgumentOutOfRangeException	Offset or count is negative.

Implements DotZLib.ChecksumGeneratorBase.

Definition at line 133 of file ChecksumImpl.cs.

         {
             if (offset < 0 || count < 0) throw new ArgumentOutOfRangeException();
             if ((offset+count) > data.Length) throw new ArgumentException();
             GCHandle hData = GCHandle.Alloc(data, GCHandleType.Pinned);
             try
             {
                 _current = crc32(_current, hData.AddrOfPinnedObject().ToInt32()+offset, (uint)count);
             }
             finally
             {
                 hData.Free();
             }
         }

References DotZLib.ChecksumGeneratorBase._current, count, and DotZLib.CRC32Checksum.crc32().

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

subprojects/zlib-1.2.12/contrib/dotzlib/DotZLib/ChecksumImpl.cs

Public Member Functions

Private Member Functions