gcc/testsuite/g++.dg/cpp0x/rv-lvalue-req.C

   1 // { dg-do compile { target c++11 } }
   2
   3 template <class T> T&& declval();
   4
   5 int main()
   6 {
   7   &declval<int>();                      // { dg-error "xvalue" }
   8   declval<int>() = declval<int>();      // { dg-error "xvalue" }
   9   declval<int>()++;                     // { dg-error "xvalue" }
  10   --declval<int>();                     // { dg-error "xvalue" }
  11   declval<int>() += 1;                  // { dg-error "xvalue" }
  12 }