1 // RUN: %clang_cc1 -triple x86_64-linux-gnu -fsyntax-only -verify -std=c++11 %s
2
3 // Make sure we handle contexts correctly with sizeof
f(T n)4 template<typename T> void f(T n) {
5 int buffer[n];
6 [] { int x = sizeof(sizeof(buffer)); }();
7 }
main()8 int main() {
9 f<int>(1);
10 }
11
12 // Make sure we handle references to non-static data members in unevaluated
13 // contexts in class template methods correctly. Previously we assumed these
14 // would be valid MemberRefExprs, but they have no 'this' so we need to form a
15 // DeclRefExpr to the FieldDecl instead.
16 // PR26893
17 template <class T>
18 struct M {
MM19 M() {}; // expected-note {{in instantiation of default member initializer 'M<S>::m' requested here}}
20 int m = *T::x; // expected-error {{invalid use of non-static data member 'x'}}
fM21 void f() {
22 // These are valid.
23 static_assert(sizeof(T::x) == 8, "ptr");
24 static_assert(sizeof(*T::x) == 4, "int");
25 }
26 };
27 struct S { int *x; };
28 template struct M<S>; // expected-note {{in instantiation of member function 'M<S>::M' requested here}}
29
30 // Similar test case for PR26893.
31 template <typename T=void>
32 struct bar {
33 struct foo { int array[10]; };
bazbar34 int baz() { return sizeof(foo::array); }
35 };
36 template struct bar<>;
37