C＃-ビット演算子

次の表に、C＃でサポートされているビット演算子を示します。変数Aが60を保持し、変数Bが13を保持すると仮定します-

Operator	Description	Example
&	Binary AND Operator copies a bit to the result if it exists in both operands.	(A & B) = 12, which is 0000 1100
		Binary OR Operator copies a bit if it exists in either operand.
(A	B) = 61, which is 0011 1101	^
Binary XOR Operator copies the bit if it is set in one operand but not both.	(A ^ B) = 49, which is 0011 0001	~
Binary Ones Complement Operator is unary and has the effect of 'flipping' bits.	(~A ) = -61, which is 1100 0011 in 2’s complement due to a signed binary number.	<<
Binary Left Shift Operator. The left operands value is moved left by the number of bits specified by the right operand.	A << 2 = 240, which is 1111 0000	>>

例

次の例は、C＃で使用可能なすべてのビット演算子を示しています-

using System;

namespace OperatorsAppl {

   class Program {

      static void Main(string[] args) {
         int a = 60;           /*60 = 0011 1100*/
         int b = 13;           /*13 = 0000 1101*/
         int c = 0;

         c = a & b;            /*12 = 0000 1100*/
         Console.WriteLine("Line 1 - Value of c is {0}", c );

         c = a | b;            /*61 = 0011 1101*/
         Console.WriteLine("Line 2 - Value of c is {0}", c);

         c = a ^ b;            /*49 = 0011 0001*/
         Console.WriteLine("Line 3 - Value of c is {0}", c);

         c = ~a;               /*-61 = 1100 0011 */
         Console.WriteLine("Line 4 - Value of c is {0}", c);

         c = a << 2;     /*240 = 1111 0000*/
         Console.WriteLine("Line 5 - Value of c is {0}", c);

         c = a >> 2;     /*15 = 0000 1111*/
         Console.WriteLine("Line 6 - Value of c is {0}", c);
         Console.ReadLine();
      }
   }
}

上記のコードをコンパイルして実行すると、次の結果が生成されます-

Line 1 - Value of c is 12
Line 2 - Value of c is 61
Line 3 - Value of c is 49
Line 4 - Value of c is -61
Line 5 - Value of c is 240
Line 6 - Value of c is 15

Csharp-bitwise-operators

C＃-ビット演算子

例