p3-0x.cpp revision 762bb9d0ad20320b9f97a841dce57ba5e8e48b07 
1// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
2
3struct X { virtual ~X(); };
4struct Y : public X { };
5struct Z; // expected-note{{forward declaration of 'Z'}}
6
7void test(X &x, Y &y, Z &z) {
8  // If T is an rvalue reference type, v shall be an expression having
9  // a complete class type, and the result is an xvalue of the type
10  // referred to by T.
11  Y &&yr0 = dynamic_cast<Y&&>(x);
12  Y &&yr1 = dynamic_cast<Y&&>(static_cast<X&&>(x));
13  Y &&yr2 = dynamic_cast<Y&&>(z); // expected-error{{'Z' is an incomplete type}}
14}
15