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Discussion :: Operators and Expressions

  1. Determine output:

    void main()
    {
          int c = - -2; 
          printf("c=%d", c); 
    }
    2. A.

     1
    B.

     -2
    C.

     2
    D.

     Error

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    Answer : Option C

    Explanation :

    Here unary minus (or negation) operator is used twice. Same maths rules applies, ie. minus * minus = plus.
    Note: However you cannot give like --2. Because -- operator can only be applied to variables as a decrement operator (eg., i--). 2 is a constant and not a variable.

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