BigInteger::OnesComplement Operator
Returns the bitwise one's complement of a BigInteger value.
Assembly: System.Numerics (in System.Numerics.dll)
Parameters
- value
- Type: System.Numerics::BigInteger
An integer value.
The OnesComplement method defines the operation of the bitwise one's complement operator for BigInteger values. The bitwise one's complement operator reverses each bit in a numeric value. That is, bits in value that are 0 are set to 1 in the result, and bits that are 1 are set to 0 in the result. The OnesComplement method enables code such as the following:
Languages that do not support custom operators may be able to call the OnesComplement method directly to perform a bitwise one's complement operation. For example:
Imports System.Numerics Module Example Public Sub Main() Dim value, complement As bigInteger value = BigInteger.Multiply(BigInteger.One, 9) complement = BigInteger.op_OnesComplement(value) Console.WriteLine("{0,5} -- {1,-32}", value, DisplayInBinary(value)) Console.WriteLine("{0,5} -- {1,-32}", complement, DisplayInBinary(complement)) Console.WriteLine() value = BigInteger.MinusOne * SByte.MaxValue complement = BigInteger.op_OnesComplement(value) Console.WriteLine("{0,5} -- {1,-32}", value, DisplayInBinary(value)) Console.WriteLine("{0,5} -- {1,-32}", complement, DisplayInBinary(complement)) Console.WriteLine() End Sub Private Function DisplayInBinary(number As BigInteger) As String Dim bytes() As Byte = number.ToByteArray() Dim binaryString As String = String.Empty For Each byteValue As Byte In bytes Dim byteString As String = Convert.ToString(byteValue, 2).Trim() binaryString += byteString.Insert(0, New String("0"c, 8 - byteString.Length)) Next Return binaryString End Function End Module ' The example displays the following output: ' 9 -- 00001001 ' -10 -- 11110110 ' ' -127 -- 10000001 ' 126 -- 01111110
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.