1 // { dg-do compile { target c++11 } }
2 
3 template <class T> T&& declval();
4 
main()5 int main()
6 {
7   &declval<int>();		        // { dg-error "16:taking address of rvalue" }
8   declval<int>() = declval<int>();	// { dg-error "15:using rvalue as lvalue" }
9   declval<int>()++;			// { dg-error "15:using rvalue as lvalue" }
10   --declval<int>();			// { dg-error "17:using rvalue as lvalue" }
11   declval<int>() += 1;			// { dg-error "rvalue" }
12 }
13