Suresh,
Can you tell me what the actual gcc error is?
corey
On 6/20/05, Suresh T <suresh.t@xxxxxxxxxxx> wrote:
> hi corey,
>
> >> What type of objects are contained_size and inner_object?
>
> Sorry, that was a typo (not in the actual code but in the mail that i
> sent).
> (Instead of putting the actual code, i wanted to put in a short one
> illustrating the problem!!)
>
>
> inner_object is an object of class contained (which was correct in the
> mail). This is within the class "enclosing". The "enclosing"
> class has a template parameter "size" and contained is created using that
> size. WHICH IS WHERE THE PROBLEM ORIGINATES
> as i said in the previos mail.
>
> i.e., contained<size> inner_object;
>
> and there was a typo in the static_cast . It should be :
> (static_cast<contained <size> >( inner_object) ) .fun_inner();
>
>
> I hope i can get some answer as this looks very gcc specific.
>
> Thanks in advance
> ---------------------------------------------------------------------------------------------------------
>
> Warm Regards,
> Suresh.T
>
>
>
>
>
>
>
> To
> Suresh T/BTC/SC/PHILIPS@PHILIPS
> cc
> corey taylor gcc-help@xxxxxxxxxxx
> Subject
> Sent by: Re: template class within another :
> gcc-help-owner@xxxxx problem with gcc 3.2.3 on linux
> nu.org (BUG ??)
> Classification
> 06/20/2005 08:17 PM
>
> Please respond to
> corey taylor
> <corey.taylor@gmail.
> com>
>
>
>
>
>
>
> Suresh,
>
> What type of objects are contained_size and inner_object?
>
> corey
>
> On 6/20/05, Suresh T <suresh.t@xxxxxxxxxxx> wrote:
> > hi,
> >
> > I need to use a template class object within another template class.
> > Specifically gcc (3.2.3 on linux) gives me a problem when the INNER
> > TEMPLATE OBJECT IS CREATED USING THE TEMPLATE PARAMETER OF THE ENCLOSING
> > CLASS and when i call the inner class object function from the enclosing
> > class object function..
> > AS this works fine in MS VC7 so i wanted to know if this is some bug in
> > gcc
> >
> > Example :
> > In the below example the "enclosing" class contains an object of
> > "contained" class. The contained object is created using the
> > template parameter of "enclosing" class. When the "enclosing" class
> > function is called, we call the function of the inner object.
> >
> > template <std::size_t size>
> > class contained {
> > public:
> > template <std::size_t sub_size>
> > int func_inner(){ ... }
> >
> > };
> >
> > template < std::size_t size>
> > class enclosing {
> >
> > public:
> >
> > template <std::size_t sub_size>
> > int func_enclose(){ ...
> >
> > return
> > (static_cast<contained_size>( inner_object) ) .fun_inner();
> > //
> > =================THIS GIVES AN ERROR ========================
> > MARK1
> > }
> >
> > contained<size> inner_object; // ============== THIS IS THE
> > ORIGIN OF ERROR ? ===================== MARK2
> >
> > };
> >
> >
> > Note : The error disappears if i use a specific value when creating the
> > inner_object ( MARK 2 above)
> > That is instead of "contained<size> inner_object" if i use "contained
> <N>
> > inner_object" where N is any number like 32.
> > (Even in that case i need to use a static_cast ( see MARK 1) to remind
> the
> > compiler of the data type of inner_object otherwise
> > the compiler gives an error which i find strange.)
> >
> > I cant use a specific value for the inner object as it should take it
> from
> > the enclosing class template parameter. Since this is
> > not working i would greatly appreciate if someone can tell me whether
> this
> > is a gcc bug or if i need to do something special to let the compiler
> > know what i am trying to do.
> >
> > Thanks &
> >
> ---------------------------------------------------------------------------------------------------------
>
> >
> > Warm Regards,
> > Suresh.T
> >
> >
> >
>
>
>
