1// RUN: %clang_cc1 -fms-extensions -fsyntax-only -verify %s -Wno-microsoft
2// RUN: %clang_cc1 -fms-extensions -fdelayed-template-parsing -fsyntax-only -verify %s -Wno-microsoft
3
4class A {
5public:
6  template<typename T> struct X { typedef int x; };
7
8  X<int>::x a; // expected-note {{implicit instantiation first required here}}
9
10  template<> struct X<int>; // expected-error {{explicit specialization of 'A::X<int>' after instantiation}}
11  template<> struct X<char>; // expected-note {{forward declaration}}
12
13  X<char>::x b; // expected-error {{incomplete type 'A::X<char>' named in nested name specifier}}
14
15  template<> struct X<double> {
16    typedef int y;
17  };
18
19  X<double>::y c;
20
21  template<> struct X<float> {}; // expected-note {{previous definition is here}}
22  template<> struct X<float> {}; // expected-error {{redefinition of 'A::X<float>'}}
23};
24
25A::X<void>::x axv;
26A::X<float>::x axf; // expected-error {{no type named 'x'}}
27
28template<class T> class B {
29public:
30  template<typename U> struct X { typedef int x; };
31
32  typename X<int>::x a; // expected-note {{implicit instantiation first required here}}
33
34  template<> struct X<int>; // expected-error {{explicit specialization of 'X<int>' after instantiation}}
35  template<> struct X<char>; // expected-note {{forward declaration}}
36
37  typename X<char>::x b; // expected-error {{incomplete type 'B<float>::X<char>' named in nested name specifier}}
38
39  template<> struct X<double> {
40    typedef int y;
41  };
42
43  typename X<double>::y c;
44
45  template<> struct X<float> {}; // expected-note {{previous definition is here}}
46  template<> struct X<T> {}; // expected-error {{redefinition of 'X<float>'}}
47};
48
49B<float> b; // expected-note {{in instantiation of}}
50