BigInteger.OnesComplement(BigInteger) Operatore

public:
 static System::Numerics::BigInteger operator ~(System::Numerics::BigInteger value);

public:
 static System::Numerics::BigInteger operator ~(System::Numerics::BigInteger value) = System::Numerics::IBitwiseOperators<System::Numerics::BigInteger, System::Numerics::BigInteger, System::Numerics::BigInteger>::op_OnesComplement;

public static System.Numerics.BigInteger operator ~(System.Numerics.BigInteger value);

static member op_OnesComplement : System.Numerics.BigInteger -> System.Numerics.BigInteger

Public Shared Operator Not (value As BigInteger) As BigInteger

Parametri

Valori restituiti

Complemento bit per bit di value.

Implementazioni

Commenti

Il OnesComplement metodo definisce l'operazione dell'operatore di complemento bit per bit per BigInteger i valori. L'operatore di complemento bit per bit inverte ogni bit in un valore numerico. Ovvero, i bit in value che sono 0 sono impostati su 1 nel risultato e i bit che sono 1 sono impostati su 0 nel risultato. Il OnesComplement metodo abilita il codice, ad esempio il seguente:

using System;
using System.Numerics;

public class Example
{
   public static void Main()
   {
      BigInteger value, complement;

      value = BigInteger.Multiply(BigInteger.One, 9);
      complement = ~value;

      Console.WriteLine("{0,5} -- {1,-32}", value, DisplayInBinary(value));
      Console.WriteLine("{0,5} -- {1,-32}\n", complement, DisplayInBinary(complement));

      value = BigInteger.MinusOne * SByte.MaxValue;
      complement = ~value;

      Console.WriteLine("{0,5} -- {1,-32}", value, DisplayInBinary(value));
      Console.WriteLine("{0,5} -- {1,-32}\n", complement, DisplayInBinary(complement));
   }

   private static string DisplayInBinary(BigInteger number)
   {
      byte[] bytes = number.ToByteArray();
      string binaryString = string.Empty;
      foreach (byte byteValue in bytes)
      {
         string byteString = Convert.ToString(byteValue, 2).Trim();
         binaryString += byteString.Insert(0, new string('0', 8 - byteString.Length));
      }
      return binaryString;
   }
}
// The example displays the following output:
//           9 -- 00001001
//         -10 -- 11110110
//
//        -127 -- 10000001
//         126 -- 01111110

open System
open System.Numerics

let displayInBinary (number: bigint) =
    let bytes = number.ToByteArray()
    let mutable binaryString = ""

    for byteValue in bytes do
        let byteString = Convert.ToString(byteValue, 2).Trim()
        binaryString <- binaryString + byteString.PadLeft(8, '0')

    binaryString

let value = BigInteger.Multiply(BigInteger.One, 9)
let complement = ~~~(int64 value) |> bigint

printfn "%5O -- %s" value (displayInBinary value)
printfn "%5O -- %s\n" complement (displayInBinary complement)

let value2 = BigInteger.MinusOne * (bigint SByte.MaxValue)
let complement2 = ~~~(int64 value) |> bigint

printfn "%5O -- %s" value2 (displayInBinary value2)
printfn "%5O -- %s" complement2 (displayInBinary complement2)
// The example displays the following output:
//           9 -- 00001001
//         -10 -- 11110110
//
//        -127 -- 10000001
//         126 -- 01111110

Imports System.Numerics

Module Example
   Public Sub Main()
      Dim value, complement As bigInteger
      
      value = BigInteger.Multiply(BigInteger.One, 9)
      complement = Not 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

I linguaggi che non supportano operatori personalizzati possono essere in grado di chiamare direttamente il OnesComplement metodo per eseguire un'operazione di complemento bit per bit. Per esempio:

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