gcc/testsuite/g++.dg/cpp0x/extern_template-5.C

   1 // PR c++/87554
   2 // { dg-options "-O" }
   3
   4 template < class a > class b {
   5   static void c(a);
   6   static a &create() { c(instance); return mya; }
   7
   8   static a mya;
   9
  10 public:
  11   static a d() { create(); return a(); }
  12   static a &instance;
  13 };
  14 template < class a > a &b< a >::instance = create();
  15 class e;
  16 class f {
  17 public:
  18   void operator()(int g) { h(g); }
  19   template < class a > void h(a i) { p(j, i); }
  20   e *j;
  21 };
  22 class e : public f {
  23 public:
  24   e(int);
  25 };
  26 struct k {
  27   int l;
  28 };
  29 template < class m, class a > void p(m, a) { b< k >::d(); }
  30 extern template class b< k >;
  31 int n;
  32 int o;
  33 void test() {
  34   e out(o);
  35   out(n);
  36 }