CODEWITHSUNDEEP
c#.netsyntax
Buckrogerz
Buckrogerz

Reputation: 131

What does "~Method" mean?

I came across some code today that reads

public class SomeClass
{
      int DEFAULT_INT = 5;

      public static int SomeMethod()
      {
           return ~FooBar(DEFAULT_INT);
      }

      public static int SomeMethod(int i)
      {
           return ~FooBar(i);
      }

      public static int FooBar(i)
      {
          ......
      }
}

I have not seen this before and as far as I know its a legal name ~FooBar Does anyone know if the "~" does anything special?

Sorry I adjusted the code from the original post. I miss read the FooBar method.

Upvotes: 3

Views: 164

Answers (2)

Amir Popovich
Amir Popovich

Reputation: 29836

As said above, it's a bitwise operator that reverses each bit.

The FooBar method returns an int. Behind the scenes it returns 32 bits that will look something like:

1110000001100..... // 32 chars.
Performing ~ on that int will return 0001111110011.....

Another example:

~(101) = 010
~(000) = 111

Upvotes: 2

Dmitry
Dmitry

Reputation: 14059

Yup, it's a bitwise complement operator.

Upvotes: 8

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