Re: help: derived class uses base class protect value

Daniel T. wrote:


Thanks for your post.
Sorry, I tried again the code above which actually do work. :-)

The original code is with template. And as below :

//******************************************************
template<class T>
class Base
{
protected:
   int mutex;
};

template<class T>
class Foo : public Base<T>
{
public:
  inline void bar(int v) { mutex = v;}
};

//****************test main***********
int main()
{
        Foo<int> foo;
        foo.bar(100);
        return 0;
}
//****************************************************
compiled result:

foo.cpp: In member function `void Foo<T>::bar(int)':
foo.cpp:13: error: `mutex' undeclared (first use this function)
foo.cpp:13: error: (Each undeclared identifier is reported only once
for each function it appears in.)
//*****************************************************

I wonder what happens with the TEMPLATE?

--tomy