May 20, 2005

System.Buffer and System.BitConverter Classes

Discovered System.Buffer class that can directly manipulate the bytes of an array class objects. All its members are static.

 int[] myarr1 = newint[5] {1,2,3,4,5};
 int[] myarr2=newint[10] {0,0,0,0,0,6,7,8,9,10};
 //here we are copying offset to offet as bytes
It has 4 members:
  • BlockCopy - Copies a specified number of bytes from a source array starting at a particular offset to a destination array starting at a particular offset.
  • ByteLength - Returns the number of bytes in the specified array.
  • GetByte - Retrieves the byte at a specified location in a specified array.
  • SetByte - Assigns a specified value to a byte at a particular location in a specified

System.BitConverter class - Converts base data types to an array of bytes, and an array of bytes to base data types. See 'SelfMarshalledStruct' in OpenNETCF.Net for a sample usage. Works with the System.Buffer class for serialising/deserialising data types to byte arrays.

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