https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71886

            Bug ID: 71886
           Summary: Incorrect error on operator() being an member in
                    template
           Product: gcc
           Version: 5.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: tomaszkam at gmail dot com
  Target Milestone: ---

Following class correctly compiles without any error in GCC 5.1.0:
struct NonTemplate
{
    typedef void type();

    type operator(); //Actually declares an member function.
};

However in case of the class template:
template<typename T>
struct Template
{
    typedef T type;

    T operator();
};
Followinge error is generated:
error: declaration of 'operator()' as non-function
     T operator();
Despite the fact that Template<void()> is identical to NonTemplate.

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