[Bug c++/30924] New: Array of pointer type argument in partial template specialization fails

["enok at lysator dot liu dot se" <gcc-bugzilla at gcc dot gnu dot org>]

A quite simple array specialization construct is rejected by g++ with a
compiler error message. Not being a language specialist icc 9.1 accepts the
code even with -strict-ansi flag. Allegedly also comeau accepts the code. The
g++ compiler error message is also pretty strange and indicates a compiler bug.

template<typename T>
struct x {};

template<typename T, unsigned N>
struct x<T*[N]> {};

int main() {
  x<int> a;
  x<int*[10]> b;
  return 0;
}

bash> g++-4.1.2 -c tst.cpp
tst.cpp:7: error: template parameters not used in partial
specialization: tst.cpp:7: error:         ?T?


-- 
           Summary: Array of pointer type argument in partial template
                    specialization fails
           Product: gcc
           Version: 4.1.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: enok at lysator dot liu dot se
 GCC build triplet: x86_64-unknown-linux-gnu
  GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30924