Important question

This is a discussion on Important question within the C++ Programming forums, part of the General Programming Boards category; How can we modify a constant variable? suppose const int x=12; How can we change its value???? Please tell me....

  1. #1
    Registered User
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    Cool Important question

    How can we modify a constant variable?
    suppose
    const int x=12;
    How can we change its value????
    Please tell me.
    All is well that ends well

  2. #2
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    Specify a pointer to the variable that you want to change. That should do the trick.
    -----------------------------------------------
    everready

    To code, or not to code, that is the question.

    Well the answer is 'TO CODE' of cause

  3. #3
    zen
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    Specify a pointer to the variable that you want to change
    You can only assign an address of a constant to a pointer to a constant so that wouldn't work. You can cast though -


    const int a = 10;
    const int* ptr = &a;
    *(int *)ptr=20;
    zen

  4. #4
    the Corvetter
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    Why make it const if you are going to want to change it? You are better off just being careful not too fool with it too much.
    1978 Silver Anniversary Corvette

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