1 // RUN: %clang_cc1 -fsyntax-only -verify %s 2 3 class A {}; // expected-note 4 {{previous use is here}} 4 enum E {}; 5 6 void a1(struct A); 7 void a2(class A); 8 void a3(union A); // expected-error {{use of 'A' with tag type that does not match previous declaration}} 9 void a4(enum A); // expected-error {{use of 'A' with tag type that does not match previous declaration}} 10 11 class A1 { 12 friend struct A; 13 friend class A; 14 friend union A; // expected-error {{use of 'A' with tag type that does not match previous declaration}} 15 16 friend enum A; // expected-error {{use of 'A' with tag type that does not match previous declaration}} 17 friend enum E; // expected-warning {{befriending enumeration type 'enum E' is a C++11 extension}} 18 }; 19 20 template <class T> struct B { // expected-note {{previous use is here}} 21 class Member {}; // expected-note 2 {{previous use is here}} 22 }; 23 24 template <> class B<int> { 25 // no type Member 26 }; 27 28 template <> struct B<A> { 29 union Member { // expected-note 4 {{previous use is here}} 30 void* a; 31 }; 32 }; 33 34 void b1(struct B<float>); 35 void b2(class B<float>); 36 void b3(union B<float>); // expected-error {{use of 'B<float>' with tag type that does not match previous declaration}} 37 //void b4(enum B<float>); // this just doesn't parse; you can't template an enum directly 38 39 void c1(struct B<float>::Member); 40 void c2(class B<float>::Member); 41 void c3(union B<float>::Member); // expected-error {{use of 'Member' with tag type that does not match previous declaration}} 42 void c4(enum B<float>::Member); // expected-error {{use of 'Member' with tag type that does not match previous declaration}} 43 44 void d1(struct B<int>::Member); // expected-error {{no struct named 'Member' in 'B<int>'}} 45 void d2(class B<int>::Member); // expected-error {{no class named 'Member' in 'B<int>'}} 46 void d3(union B<int>::Member); // expected-error {{no union named 'Member' in 'B<int>'}} 47 void d4(enum B<int>::Member); // expected-error {{no enum named 'Member' in 'B<int>'}} 48 49 void e1(struct B<A>::Member); // expected-error {{use of 'Member' with tag type that does not match previous declaration}} 50 void e2(class B<A>::Member); // expected-error {{use of 'Member' with tag type that does not match previous declaration}} 51 void e3(union B<A>::Member); 52 void e4(enum B<A>::Member); // expected-error {{use of 'Member' with tag type that does not match previous declaration}} 53 54 template <class T> struct C { 55 void foo(class B<T>::Member); // expected-error{{no class named 'Member' in 'B<int>'}} \ 56 // expected-error{{use of 'Member' with tag type that does not match previous declaration}} 57 }; 58 59 C<float> f1; 60 C<int> f2; // expected-note {{in instantiation of template class}} 61 C<A> f3; // expected-note {{in instantiation of template class}} 62
