[Bug c++/60153] New: Variadic template parameter's typedefs cause internal compile error: in dependent_type_p on RedHat

[nclimer at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60153

            Bug ID: 60153
           Summary: Variadic template parameter's typedefs cause internal
                    compile error: in dependent_type_p on RedHat
           Product: gcc
           Version: 4.8.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: nclimer at gmail dot com

Created attachment 32109
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32109&action=edit
preprocessed source

While playing with variadic template, I ran into the following error:

#include <iostream>

enum class foo :int {x,y,z};

    //class we're trying to generate
template <int a, foo b>
class A
{
public:
  A()
  {
    std::cout << a << "," << (int)b << std::endl;

  }
};

//class which generates information
template <typename T>
struct B
{
  typedef T value_type;
  static const T val;
};

template <typename... B>
struct madscience_intitializer
{
  template <typename B::value_type... args>
  using ret_type = A<args...>;
};




int main(int argc, char** argv)
{
  madscience_intitializer<B<int>,B<foo> >::ret_type<1,foo::y> a;
}

Causes this error:

main2.cpp: In function ‘int main(int, char**)’:
main2.cpp:37:61: internal compiler error: in dependent_type_p, at cp/pt.c:19526
   madscience_intitializer<B<int>,B<foo> >::ret_type<1,foo::y> a;
                                                             ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://bugzilla.redhat.com/bugzilla> for instructions.
Preprocessed source stored into /tmp/ccqXFjQG.out file, please attach this to
your bugreport.
make: *** [main2] Error 1


g++ version
g++ (GCC) 4.8.2 20131212 (Red Hat 4.8.2-7)
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