| 1 | // RUN: %clang_cc1 -std=c++2a -verify %s |
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| 2 | |
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| 3 | auto a = []{}; |
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| 4 | decltype(a) a2; |
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| 5 | void f(decltype(a) x, decltype(a) y) { |
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| 6 | x = y; |
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| 7 | x = static_cast<decltype(a)&&>(y); |
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| 8 | } |
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| 9 | |
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| 10 | template<typename T> |
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| 11 | struct X { |
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| 12 | constexpr X() { T::error; } // expected-error {{'::'}} |
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| 13 | X(const X&); |
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| 14 | constexpr X &operator=(const X&) { T::error; } // expected-error {{'::'}} |
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| 15 | constexpr X &operator=(X&&) { T::error; } // expected-error {{'::'}} |
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| 16 | }; |
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| 17 | extern X<int> x; |
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| 18 | auto b = [x = x]{}; // expected-note 3{{in instantiation of}} |
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| 19 | decltype(b) b2; // expected-note {{in implicit default constructor}} |
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| 20 | void f(decltype(b) x, decltype(b) y) { |
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| 21 | x = y; // expected-note {{in implicit copy assignment}} |
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| 22 | x = static_cast<decltype(b)&&>(y); // expected-note {{in implicit move assignment}} |
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| 23 | } |
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| 24 | |
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| 25 | struct Y { |
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| 26 | Y() = delete; // expected-note {{deleted}} |
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| 27 | Y(const Y&); |
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| 28 | Y &operator=(const Y&) = delete; // expected-note 2{{deleted}} |
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| 29 | Y &operator=(Y&&) = delete; |
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| 30 | }; |
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| 31 | extern Y y; |
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| 32 | auto c = [y = y]{}; // expected-note 3{{deleted because}} |
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| 33 | decltype(c) c2; // expected-error {{deleted}} |
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| 34 | void f(decltype(c) x, decltype(c) y) { |
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| 35 | x = y; // expected-error {{deleted}} |
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| 36 | x = static_cast<decltype(c)&&>(y); // expected-error {{deleted}} |
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| 37 | } |
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| 38 | |
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