Re: Cannot compile with templated classes

From:

Barry <dhb2000@gmail.com>

Newsgroups:

comp.lang.c++

Date:

Thu, 9 Oct 2008 00:08:24 -0700 (PDT)

Message-ID:

<34a2bcb1-11a3-49ba-adca-ef06acf3034b@g25g2000prf.googlegroups.com>

On Oct 9, 2:09 pm, sam.bark...@gmail.com wrote:

Hi all,

I have this following error

In test.h
=========================

===================

#include <iostream>
#include <cstddef>
#include <utility>

template<typename T> class myclass;
template<typename T> std::ostream& operator<< (std::ostream&, const
myclass<T>&);

template <typename T> class myclass {

public:
friend std::ostream& operator<< <T> (std::ostream& os, const
myclass<T>& var1);
...
..
..
private:
struct mysubclass
{

int par1;
int par2;};
};

#include "myclass.tem"

=========================

=====================

In myclass.tem,I have

=========================

=======================

#include <cassert>
#include <algorithm>
template<typename T>
std::ostream& operator<< (std::ostream& values, const myclass<T>&
var1)
{
          typename myclass<T>::mysubclass *current;
          current->par1=89;
          .................................
          ....................................

}

When I compile I get the error

In myclass.tem
error: =91par1' was not declared in this scope

What am I doing wrong.How can solve this.

Well, I don't see any error with this code,
except a runtime error, you didn't initialize the pointer "current".

and VC2005, GCC4.3, Comeau Online compiles file.

--
Best Regards
Barry