Re: [Mingw-users] Code C++ not compile in MinGW

[Greg C. <gch...@sb...>]

On 2011-09-16 18:35Z, George Brink wrote:
> 
> I am not sure why protected inheritance does not work the same way in 
> templates as it works in normal classes.

C++2003 14.6.2/3 says "if a base class of the class template depends
on a template-parameter, the base class scope is not examined during
unqualified name lookup".

> As a quick solution, you can help the child template to find the 
> variable in the parent:
>      Type getValue() {
>          return Number<Type>::value * Number<Type>::value;
>      }

Or:
    return this->value * this->value;

Or add this inside class Sqr<>:
    using Number<Type>::value;