forked from OSchip/llvm-project
34 lines
876 B
C++
34 lines
876 B
C++
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// RUN: %clang_cc1 -std=c++1z -verify %s
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struct A { int x, y; };
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typedef int B[2];
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struct C { template<int> int get(); };
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struct D { int x, y, z; };
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struct E { int *p, n; };
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namespace std {
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using size_t = decltype(sizeof(0));
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template<typename> struct tuple_size;
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template<size_t, typename> struct tuple_element { using type = int; };
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}
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template<> struct std::tuple_size<C> { enum { value = 2 }; };
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template<typename T> int decomp(T &t) {
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auto &[a, b] = t; // expected-error {{type 'D' decomposes into 3 elements, but only 2 names were provided}}
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return a + b; // expected-error {{cannot initialize return object of type 'int' with an rvalue of type 'int *'}}
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}
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void test() {
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A a;
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B b;
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C c;
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D d;
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E e;
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decomp(a);
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decomp(b);
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decomp(c);
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decomp(d); // expected-note {{in instantiation of}}
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decomp(e); // expected-note {{in instantiation of}}
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}
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