& Operators

The & operator can be either a unary operator or a two-dollar operator.

　　Note

The unary & operator returns the address of the operand (requires an unsafe context).

For integral type andthe bool type pre-defines the binary & operator. for integer,&, the Logical bitwise "and" of the operands are computed.  bool operands, & Computes the logical AND of its operands; That is, the result was true if and only if both it operands is Span Class="input">true . For  , bool  operands,& The logical "and" of the operands, that is, when and only if the two operands are   true , the result is   true.

The & operator calculates two operators, regardless of the value of the first operand. For example:

　　

 1  int  i = 0   2   False  & ++i = = 1  )  3  { 4  //  I was incremented, but the conditional  5   expression evaluates to False, so  6  //
      This block does not execute.  7 } 

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User-defined types can overload the $ two & operator (see operator).  An operation that is applicable to an integer type usually applies to an enumeration type. when you overload the two-tuple operator, the corresponding assignment operator, if any, is also implicitly overloaded.

　　Example

　　

1 classBitwiseand2 {3     Static voidMain ()4     {5         //The following statements perform logical ANDs.6Console.WriteLine (true&false); 7Console.WriteLine (true&true); 8 9         //The following line performs a bitwise AND of F8 (1111) andTen         //3F (0011 1111). One         //1111 A         //0011 1111 -         //    --------- -         //0011 or a theConsole.WriteLine ("0x{0:x}",0xf8&0x3f);  -     } - } - //Output: + //False - //True + //0x38

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& Operators