forked from OSchip/llvm-project
38 lines
1.2 KiB
C++
38 lines
1.2 KiB
C++
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// RUN: %clang_cc1 -std=c++2a -verify %s
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auto a = []{};
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decltype(a) a2;
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void f(decltype(a) x, decltype(a) y) {
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x = y;
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x = static_cast<decltype(a)&&>(y);
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}
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template<typename T>
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struct X {
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constexpr X() { T::error; } // expected-error {{'::'}}
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X(const X&);
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constexpr X &operator=(const X&) { T::error; } // expected-error {{'::'}}
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constexpr X &operator=(X&&) { T::error; } // expected-error {{'::'}}
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};
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extern X<int> x;
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auto b = [x = x]{}; // expected-note 3{{in instantiation of}}
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decltype(b) b2; // expected-note {{in implicit default constructor}}
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void f(decltype(b) x, decltype(b) y) {
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x = y; // expected-note {{in implicit copy assignment}}
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x = static_cast<decltype(b)&&>(y); // expected-note {{in implicit move assignment}}
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}
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struct Y {
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Y() = delete; // expected-note {{deleted}}
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Y(const Y&);
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Y &operator=(const Y&) = delete; // expected-note 2{{deleted}}
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Y &operator=(Y&&) = delete;
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};
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extern Y y;
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auto c = [y = y]{}; // expected-note 3{{deleted because}}
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decltype(c) c2; // expected-error {{deleted}}
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void f(decltype(c) x, decltype(c) y) {
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x = y; // expected-error {{deleted}}
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x = static_cast<decltype(c)&&>(y); // expected-error {{deleted}}
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}
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