p5-0x.cpp revision 6fe2965ce722826ae7c3af85271f900286ef20c3 
1// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
2
3// [class.base.init]p5
4// A ctor-initializer may initialize a variant member of the constructor’s
5// class. If a ctor-initializer specifies more than one mem-initializer for the
6// same member or for the same base class, the ctor-initializer is ill-formed.
7
8union E {
9  int a;
10  int b;
11  E() : a(1),  // expected-note{{previous initialization is here}}
12        b(2) { // expected-error{{initializing multiple members of union}}
13  }
14};
15
16union F {
17  struct {
18    int a;
19    int b;
20  };
21  int c;
22  F() : a(1),  // expected-note{{previous initialization is here}}
23        b(2),
24        c(3) { // expected-error{{initializing multiple members of union}}
25  }
26};
27