1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s 2 3 struct X { virtual ~X(); }; 4 struct Y : public X { }; 5 struct Z; // expected-note{{forward declaration of 'Z'}} 6 test(X & x,Y & y,Z & z)7 void 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