Re: Problem when using template as the base class?

[Daniel Llorens del Río <daniel dot llorensdelrio at epfl dot ch>]

On 23 Sep, 2006, at 1:47, Peng Yu wrote:

> > I have the following program. It also includes the non-template
> > equivalent class, which works fine. If you uncomment the comments,  
> > you
> > will see the compiler errors. The errors are also shown below. Do you
> > know what is wrong? Is it a bug of the compiler?
> >
> > BTW, I use g++-3.4.
>
> I corrected the error by adding template keyword. But I don't
> understand why "template" keyword is need. Would you please help me?

Because when the compiler first parses your function, it doesn't know  
what type T is, and so it cannot know that 'T::(something).as' is a  
template and 'T::(something)/as<int>' is valid syntax.

This is standard C++, go google up 'templates two-phase name lookup'.

	Daniel.