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From: "richard-gccbugzilla at metafoo dot co.uk" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/59673] New: wrong specialization used when a partial specialization of a member template is explicitly specialized
Date: Sat, 04 Jan 2014 02:22:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59673

            Bug ID: 59673
           Summary: wrong specialization used when a partial
                    specialization of a member template is explicitly
                    specialized
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: richard-gccbugzilla at metafoo dot co.uk

GCC rejects this:

template<typename A> struct X {
  template<typename B> struct Y;
  template<typename B> struct Y<B[1]> { int x; }; // #1
  template<typename B> struct Y<B[2]> { int y; };
};
template<> template<typename B> struct X<int>::Y<B[1]> { int z; }; // #2
int a = X<int>::Y<int[1]>().z;

... because it uses #1, not #2, when instantiating X<int>::Y<int[1]>.