Diagnose multiple initialization of anonymous union

fields in the ctor-initializer list.

llvm-svn: 74554

1 files changed, 8 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/constructor-initializer.cpp b/clang/test/SemaCXX/constructor-initializer.cpp
index d8b95cec4cd..7fd748b8d34 100644
--- a/clang/test/SemaCXX/constructor-initializer.cpp
+++ b/clang/test/SemaCXX/constructor-initializer.cpp
@@ -66,3 +66,11 @@ struct Z : S {
   Z() : S(), X(), E()  {} // expected-error {{type 'class E' is not a direct or virtual base of 'Z'}}
 };
 
+class U { 
+  union { int a; char* p; };
+  union { int b; double d; };
+
+  U() :  a(1), p(0), d(1.0)  {} // expected-error {{multiple initializations given for non-static member 'p'}} \
+                        // expected-note {{previous initialization is here}}
+};
+