Class Adler

Computes an Adler-32 checksum.

Inheritance

System.Object

Adler

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: OfficeOpenXml.Packaging.Ionic.Zlib

Assembly: EPPlus.dll

Syntax

public sealed class Adler

Remarks

The Adler checksum is similar to a CRC checksum, but faster to compute, though less reliable. It is used in producing RFC1950 compressed streams. The Adler checksum is a required part of the "ZLIB" standard. Applications will almost never need to use this class directly.

Methods

Adler32(UInt32, Byte[], Int32, Int32)

Calculates the Adler32 checksum.

Declaration

public static uint Adler32(uint adler, byte[] buf, int index, int len)

Parameters

Type	Name	Description
System.UInt32	adler
System.Byte[]	buf
System.Int32	index
System.Int32	len

Returns

Type	Description
System.UInt32

Remarks

This is used within ZLIB. You probably don't need to use this directly.

Examples

To compute an Adler32 checksum on a byte array:

  var adler = Adler.Adler32(0, null, 0, 0);
  adler = Adler.Adler32(adler, buffer, index, length);