xref: /aosp_15_r20/external/clang/test/SemaTemplate/instantiate-expr-5.cpp (revision 67e74705e28f6214e480b399dd47ea732279e315)
1*67e74705SXin Li // RUN: %clang_cc1 -fsyntax-only -verify %s
2*67e74705SXin Li 
x(A x)3*67e74705SXin Li template <class A> int x(A x) { return x++; }
y()4*67e74705SXin Li int y() { return x<int>(1); }
5*67e74705SXin Li 
6*67e74705SXin Li namespace PR5880 {
7*67e74705SXin Li   template<typename T>
8*67e74705SXin Li   struct A {
9*67e74705SXin Li     static const int a  = __builtin_offsetof(T, a.array[5].m); // expected-error{{no member named 'a' in 'HasM'}}
10*67e74705SXin Li   };
11*67e74705SXin Li   struct HasM {
12*67e74705SXin Li     float m;
13*67e74705SXin Li   };
14*67e74705SXin Li 
15*67e74705SXin Li   struct ArrayOfHasM {
16*67e74705SXin Li     HasM array[10];
17*67e74705SXin Li   };
18*67e74705SXin Li 
19*67e74705SXin Li   struct B { ArrayOfHasM a; };
20*67e74705SXin Li   A<B> x;
21*67e74705SXin Li   A<HasM> x2; // expected-note{{in instantiation of}}
22*67e74705SXin Li 
23*67e74705SXin Li   template<typename T>
24*67e74705SXin Li   struct AnonymousUnion {
25*67e74705SXin Li     union {
26*67e74705SXin Li       int i;
27*67e74705SXin Li       float f;
28*67e74705SXin Li     };
29*67e74705SXin Li   };
30*67e74705SXin Li 
31*67e74705SXin Li   template<typename T>
test_anon_union()32*67e74705SXin Li   void test_anon_union() {
33*67e74705SXin Li     int array1[__builtin_offsetof(AnonymousUnion<T>, f) == 0? 1 : -1];
34*67e74705SXin Li     int array2[__builtin_offsetof(AnonymousUnion<int>, f) == 0? 1 : -1];
35*67e74705SXin Li   }
36*67e74705SXin Li 
37*67e74705SXin Li   template void test_anon_union<int>();
38*67e74705SXin Li }
39*67e74705SXin Li 
40*67e74705SXin Li namespace AddrOfClassMember {
41*67e74705SXin Li   template <typename T> struct S {
42*67e74705SXin Li     int n;
fAddrOfClassMember::S43*67e74705SXin Li     static void f() {
44*67e74705SXin Li       +T::n; // expected-error {{invalid use of member}}
45*67e74705SXin Li     }
46*67e74705SXin Li   };
g()47*67e74705SXin Li   void g() { S<S<int> >::f(); } // expected-note {{in instantiation of}}
48*67e74705SXin Li }
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