BigInteger.OnesComplement(BigInteger) 運算子
定義
重要
部分資訊涉及發行前產品,在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊,不做任何明確或隱含的瑕疵擔保。
傳回 BigInteger 值的位元一進位補數。
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
參數
- value
- BigInteger
整數值。
傳回
value
的位元一進位補數。
實作
備註
方法 OnesComplement 會針對值定義位補碼運算子 BigInteger 的運算。 位一的補碼運算子會反轉數值中的每個位。 也就是說,在結果中,0 中的 value
位會設定為 1,而 1 的位則會在結果中設定為 0。 方法 OnesComplement 會啟用下列程式代碼:
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
不支援自定義運算子的語言可能會直接呼叫 OnesComplement 方法,以執行位補碼運算。 例如:
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