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 4 template<typename T> void f(T n) { 5 int buffer[n]; 6 [] { int x = sizeof(sizeof(buffer)); }(); 7 } 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 { 19 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'}} 21 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]; }; 34 int baz() { return sizeof(foo::array); } 35 }; 36 template struct bar<>; 37
