File: error4.C

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gcc-riscv64-unknown-elf 8.3.0.2019.08%2Bdfsg-1
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// PR c++/49156
// { dg-do compile { target c++11 } }

template<typename T> T declval();

template<typename T>
struct S {

  template<typename U>
    static U get(const volatile T&);

  template<typename U>
    static decltype(*declval<U>()) get(...); // { dg-error "operator*" }

  typedef decltype(get<T>(declval<T>())) type; // { dg-error "no match" }
};

struct X { };

S<X>::type x;

// { dg-prune-output "note" }