Fix r151443 to only apply C++11's exception for non-static data member access

in cases where we would otherwise disallow the access, and add a -Wc++98-compat
diagnostic for this C++11 feature.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151444 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 11 insertions, 0 deletions

diff --git a/test/SemaCXX/cxx98-compat.cpp b/test/SemaCXX/cxx98-compat.cpp
index 879c72211d..12b95765e0 100644
--- a/test/SemaCXX/cxx98-compat.cpp
+++ b/test/SemaCXX/cxx98-compat.cpp
@@ -1,6 +1,8 @@
 // RUN: %clang_cc1 -fsyntax-only -std=c++11 -Wc++98-compat -verify %s
 // RUN: %clang_cc1 -fsyntax-only -std=c++11 %s
 
+namespace std { struct type_info; }
+
 template<typename ...T>  // expected-warning {{variadic templates are incompatible with C++98}}
 class Variadic1 {};
 
@@ -268,3 +270,12 @@ Later: // expected-note {{possible target of indirect goto}}
     return;
   }
 }
+
+namespace UnevaluatedMemberAccess {
+  struct S {
+    int n;
+    int f() { return sizeof(S::n); } // ok
+  };
+  int k = sizeof(S::n); // expected-warning {{use of non-static data member 'n' in an unevaluated context is incompatible with C++98}}
+  const std::type_info &ti = typeid(S::n); // expected-warning {{use of non-static data member 'n' in an unevaluated context is incompatible with C++98}}
+}