clang/test/CXX/expr/expr.post/expr.reinterpret.cast/p1-0x.cpp

   1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
   2
   3 // If T is an lvalue reference type or an rvalue reference to function
   4 // type, the result is an lvalue; if T is an rvalue reference to
   5 // object type, the result is an xvalue;
   6
   7 unsigned int f(int);
   8
   9 template<typename T> T&& xvalue();
  10 void test_classification(char *ptr) {
  11   int (&fr0)(int) = reinterpret_cast<int (&&)(int)>(f);
  12   int &&ir0 = reinterpret_cast<int &&>(*ptr);
  13   int &&ir1 = reinterpret_cast<int &&>(0); // expected-error {{rvalue to reference type}}
  14   int &&ir2 = reinterpret_cast<int &&>('a'); // expected-error {{rvalue to reference type}}
  15   int &&ir3 = reinterpret_cast<int &&>(xvalue<char>());
  16   // Per DR1268, reinterpret_cast can convert between lvalues and xvalues.
  17   int &ir4 = reinterpret_cast<int &>(xvalue<char>());
  18   int &&ir5 = reinterpret_cast<int &&>(*ptr);
  19 }