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From: Srinivas Vobilisetti <srinivas-v@usa.net>
Subject: Re: this-> required?
Date: 1998/05/02
Message-ID: <354A5728.A53BF0F@usa.net>#1/1
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Approved: Fergus Henderson <fjh@cs.mu.oz.au>
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asbinn@rstcorp.com wrote:

> In article <354657D6.C45E924F@xilinx.com>,
>   Lou Sanchez-chopitea <lou.sanchez-chopitea@xilinx.com> wrote:
>
> > template <class T> class Base
> > {
> > public:
> >     int fBase ( void) { return 1;}
> > };
> >
> > template <class T> class Derived : public Base<T>
> > {
> > public:
> >     int f1 ( void) { return fBase();}
> >     int f2 ( void) { return this->fBase();}
> > };
> >
>
> As far as correctness goes, it looks syntactically and semantically
> correct to me.
>
> A consideration is related to the recent Guru of the Week.  When class
> Derived<T> is parsed, the parent class Base<T> is not considering during
> name look-up [temp.dep 14.6.2 paragrph 3].  This means that if there was a
> function
>
>   int fBase();
>
> declared before the definition of Derived<T>, then it would be bound to
> the use of fBase() in the definition of Derived<T>::f1().  Pretty unintuitive
> to me.
>
> Any comments from committee members on the reasoning behind this?
>

I am not a committee member. Probable reasoning behind this is that
aspecialization of class Base<T> may not have the member you are referring to
in the class Derived<T> .

Srinivas
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