Re: What is going on here?

From: Karl Heinz Buchegger (kbuchegg_at_gascad.at)
Date: 08/18/04

  • Next message: Alwyn: "Re: What is going on here?" 
    Date: Wed, 18 Aug 2004 13:47:46 +0200

    rs wrote:
    >
    > I am trying to figure out what is going on with the constructor in the
    > following class.
    > What I can not figure out is why is there a colon and then the base class
    > declaration in the constructor function.

    Everything after the ':' up to the opening '{' is called the 'intializer
    list'. Its use is to specify to the compiler what initializations should
    occour. This can be: initializations of member variables or the initialization
    of the base class this class is derived from.

    >
    > Why is there a semicolon after the inline definition { m_pMainWnd = NULL; }
    > ;
    It's just syntactic sugar. It doesn't need to be there, but it isn't
    wrong either. As for the same reason as there is no error in

    // Look Ma. Lots of empty statements

    ;

    int main()
    {
      ;
      ;
      ;
    } 

    -- 
Karl Heinz Buchegger
kbuchegg@gascad.at
  • Next message: Alwyn: "Re: What is going on here?"

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