Re: [Dev-C++] Foward declaration

[staale <st...@le...>]

Search for 'how to handel Circular references'  or somthing like that. I =
also belive this situation usualy is discussed in a decent 'Design =
patterns' book.

MVH
Staale
  ----- Original Message -----=20
  From: Shaddow=20
  To: dev...@li...=20
  Sent: Tuesday, May 07, 2002 10:24 PM
  Subject: Re: [Dev-C++] Foward declaration


  I didn't see the original question so I may be answering something =
that hasn't actually been asked.  If so, just ignore what I have to say.

  While it's true that you'd get yourself into all kinds of trouble =
trying to have A be a data member of B and B a data member of A, it is =
entirely possible (and actually at times necessary) to have B* be a data =
member of A and A* be a data member of B.  You see this kind of a =
situation frequently in frameworks.

  class B;

  class A
  {
    B* b;
  };

  class B
  {
    A* a;
  };



  Ioannis Vranos wrote:

I suppose the question was for me and i suppose the question is to have2 =
classes one containing an object of the other (i did not pay =
muchattention when i saw the code).Well this cannot be done and it is =
good it can't be done, because thenthe computers would crash. :)Imagine =
the code:class B;class A{  B b;};class B{  A a;};A contains a B which =
contains an A which contains a B...That's why it can't be done.Ioannis* =
Ioannis Vranos* Programming pages: http://www.noicys.cjb.net* =
Alternative URL: http://run.to/noicys
-----Original Message-----From: =
dev...@li... =
[mailto:dev...@li...] On Behalf Of Ricardo =
L=F3pez RuizSent: Tuesday, May 07, 2002 9:45 PMTo: Dev-C++Subject: Re: =
[Dev-C++] Foward declarationThen, is there no possibility to program =
somethingas Luis Bras propose??...Some special trick, I =
mean.Ricardo.____________________________________________________________=
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