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 4template<typename T> void f(T n) { 5 int buffer[n]; 6 [] { int x = sizeof(sizeof(buffer)); }(); 7} 8int 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 17template <class T> 18struct 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}; 27struct S { int *x; }; 28template struct M<S>; // expected-note {{in instantiation of member function 'M<S>::M' requested here}} 29 30// Similar test case for PR26893. 31template <typename T=void> 32struct bar { 33 struct foo { int array[10]; }; 34 int baz() { return sizeof(foo::array); } 35}; 36template struct bar<>; 37