gcc/testsuite/g++.old-deja/g++.jason/tredecl3.C

// { dg-do assemble  }
// PRMS Id: 4679
// Bug: redeclaration of templates erases the definition.

template <class T> class Foo { public: void h(); };
template <class T> class Foo;

void g()
{
  Foo<int> f;
}