Re: gcc 3.4.5: Partially specialized descendant of template doesn't see members of base

["Dima Sorkin" <dima dot sorkin at gmail dot com>]

Hi.
See my remarks with "///".
Regards,
Dima.

On 10/7/06, Mazay wrote:
> template <class T>
> class Der<T,4>: public Base<T>
> {
> public:
>     using Base<T>::x; //!!
///   I think this is misuse of "using". "using" in a class scope is
intended for
/// disambigation in the case of multiple inheritance.

> template <class T,int num>
> int Der<T,num>::get()
> {
>     return x-num;
///   I don't know why compiler does not shout on this one, see below.

> }
>
> template <class T>
> int Der<T,4>::get()
> {
>     return x+4; //38 row. The error is here. x is not declared in this scope.
///   It should be "this->x". Otherwise compiler should shout, because
of two pass
/// compilation of the templates, it cannot know what is "x".

> }
>
> Compilation output:
> ---------------------------------------------------------
> C:\prg\test\mingw_templ>g++ main.cpp
> main.cpp: In member function `int Der<T, 4>::get()':
> main.cpp:38: error: `x' was not declared in this scope
> ---------------------------------------------------------
>
> Compiler version information:
> ---------------------------------------------------------
> C:\prg\test\mingw_templ>g++ -v
> Reading specs from C:/Install/MinGW/bin/../lib/gcc/mingw32/3.4.5/specs
> Configured with: ../gcc-3.4.5/configure --with-gcc --with-gnu-ld --with-gnu-as