p2.cpp revision d46a1125d43bcfd47fbd1206ebd1226863549390 
1// RUN: %clang_cc1 -fsyntax-only -verify %s
2
3// C++11 [class.mem]p2:
4//   A class is considered a completely-defined object type (or
5//   complete type) at the closing } of the class-specifier. Within
6//   the class member-specification, the class is regarded as complete
7//   within function bodies, default arguments,
8//   exception-specifications, and brace-or-equal-initializers for
9//   non-static data members (including such things in nested classes).
10//   Otherwise it is regarded as incomplete within its own class
11//   member-specification.
12
13namespace test0 {
14  struct A { // expected-note {{definition of 'test0::A' is not complete until the closing '}'}}
15    A x; // expected-error {{field has incomplete type 'test0::A'}}
16  };
17}
18
19namespace test1 {
20  template <class T> struct A {
21    A<int> x; // expected-error {{implicit instantiation of template 'test1::A<int>' within its own definition}}
22  };
23}
24
25namespace test2 {
26  template <class T> struct A;
27  template <> struct A<int> {};
28  template <class T> struct A {
29    A<int> x;
30  };
31}
32