CODEWITHSUNDEEP
c#.net
user7282528
user7282528

Reputation:

what's ^ in C#?

I found some code like this when overrides the GetHashCode

public override int GetHashCode
{
   return this.FirstName.GetHashCode() ^ this.LastName.GetHashCode()
}

what's the symbol of "^"? is it power math function?

Upvotes: 0

Views: 224

Answers (1)

Andrew Shepherd
Andrew Shepherd

Reputation: 45252

It's a bitwise XOR operator.

0 ^ 0 = 0
1 ^ 1 = 0
1 ^ 0 = 1
0 ^ 1 = 1

This is a useful way to combine two hash values to create a new hash value.

Applying this to another example: 6 ^ 10 = 12:

| Binary | Decimal |
|--------|---------|
|   0110 |       6 |
|   1010 |      10 |
|========|=========|
|   1100 |      12 |
|========|=========|

Upvotes: 21

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