console output for code

Note that + is decimal add operator and | is a bitwise OR operator. It is incidental that output is same.

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int x = 6;

Console.WriteLine(x |= 1);

Ouput is 7

int x = 6;

Console.WriteLine(x += 1);

Output is 7.

In both cases output is 7. But in the second case binary is not coming in to picture. Why only in the first case?

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To the best of my understanding!

Just as we write a += 5, which gets translated to a = a + 5, the above gets translated to x = x | 1.

The binary of 6 would be 0110. The binary of 1 would be 0001. If you OR these together it would be as follows:

0110

0001

------

0111

The result as you see it is decimal 7. Then you assign this result back to x. Hence, the output. Hope it clarifies.

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