36 lines
1.0 KiB
C++
36 lines
1.0 KiB
C++
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// RUN: %clang_cc1 -fsyntax-only -verify %s
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enum copy_traits { movable = 1 };
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template <int>
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struct optional_ctor_base {};
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template <typename T>
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struct ctor_copy_traits {
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// this would produce a c++98-compat warning, which would erroneously get the
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// no-matching-function-call error's notes attached to it (or suppress those
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// notes if this diagnostic was suppressed, as it is in this case)
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static constexpr int traits = copy_traits::movable;
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};
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template <typename T>
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struct optional : optional_ctor_base<ctor_copy_traits<T>::traits> {
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template <typename U>
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constexpr optional(U&& v);
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};
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struct A {};
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struct XA {
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XA(const A&);
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};
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struct B {};
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struct XB {
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XB(const B&);
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XB(const optional<B>&);
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};
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struct YB : XB {
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using XB::XB;
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};
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void InsertRow(const XA&, const YB&); // expected-note {{candidate function not viable: no known conversion from 'int' to 'const XA' for 1st argument}}
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void ReproducesBugSimply() {
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InsertRow(3, B{}); // expected-error {{no matching function for call to 'InsertRow'}}
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}
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