[Bug c++/33955] internal compiler error: in dependent_type_p, at cp/pt.c:15245 (vararg template problem)

["dgregor at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #2 from dgregor at gcc dot gnu dot org  2007-10-31 12:09 -------
I can duplicate this locally. Here's a smaller test case:

template<typename T>
struct uncvref
{
  typedef T type;
};

template<typename... Args>
struct args
{
  static const int size = sizeof...(Args);
};

template<typename G, typename E, typename S, typename V, long GN = G::size,
long EN = E::size>
struct apply_args;

template<typename... G, typename... E, typename S, typename V, long N>
struct apply_args<args<G...>, args<E...>, S, V, N, N>
{
  typedef args<
    typename G::template apply<typename uncvref<E>::type, S, V>::type...
    > type;
};

struct or_
{
  template<typename E, typename S, typename V>
  struct apply {
    typedef typename E::type type;
  };
};

template<typename T>
struct identity
{
  typedef T type;
};

apply_args<args<or_>, args<identity<int>>, float, double> a1;

I'm working on a fix now.


-- 

dgregor at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |dgregor at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-10-31 12:09:52
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33955