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Discussion :: Operators and Expressions

  1. What will be the output of the following code fragment?

    void main()
    {
       printf("%x",-1<<4);
    }
    2. A.

     fff0
    B.

     fff1
    C.

     fff2
    D.

     fff3
    E.

     fff4

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    Answer : Option A

    Explanation :

    -1 will be represented in binary form as:
    1111 1111 1111 1111

    Now -1<<4 means 1 is Shifted towards left by 4 positions, hence it becomes:
    1111 1111 1111 0000 in hexadecimal form - fff0.

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