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Date: Fri, 13 Sep 2002 00:46:00 -0000
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Subject: c++/7906: Templated class with nested non-templated class having an operator() fails to compile
X-SW-Source: 2002-09/txt/msg00218.txt.bz2
List-Id: <gcc-prs.sourceware.org>


>Number:         7906
>Category:       c++
>Synopsis:       Templated class with nested non-templated class having an operator() fails to compile
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Fri Sep 13 00:46:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Marcel Loose
>Release:        g++ (GCC) 3.2
>Organization:
>Environment:
Linux master 2.4.19 #1 SMP Mon Aug 12 15:33:48 CEST 2002 i686 unknown
>Description:
The code in "How-To-Repeat" is legal, to the best of my knowledge. However, it fails to compile with the following error:

tTemplate.cc:19: no `Templated<T>::NonTemplated::operator std::vector<T, 
   std::allocator<_CharT> >::size_type() const' member function declared in 
   class `Templated<T>::NonTemplated'
tTemplate.cc:19: template definition of non-template `
   Templated<T>::NonTemplated::operator std::vector<T, std::allocator<_CharT> 
   >::size_type() const'
>How-To-Repeat:
#include <vector>

template <class T>
class Templated
{
private:
  typedef std::vector<T> buf_t;
  class NonTemplated
  {
  public:
    operator typename buf_t::size_type() const;
  private:
    typename buf_t::size_type myIndex;
  };
};

template <class T>
Templated<T>::NonTemplated::operator typename Templated<T>::buf_t::size_type() const
{
  return myIndex;
}


int main()
{
  Templated<int> tmpl;
  return 0; 
}
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: