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43 lines
1.6 KiB
C++
43 lines
1.6 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++98, c++03
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// Before GCC 6, aggregate initialization kicks in.
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// See https://stackoverflow.com/q/41799015/627587.
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// UNSUPPORTED: gcc-5
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// <utility>
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// template <class T1, class T2> struct pair
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// explicit(see-below) constexpr pair();
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// This test checks the conditional explicitness of std::pair's default
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// constructor as introduced by the resolution of LWG 2510.
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#include <utility>
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struct ImplicitlyDefaultConstructible {
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ImplicitlyDefaultConstructible() = default;
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};
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struct ExplicitlyDefaultConstructible {
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explicit ExplicitlyDefaultConstructible() = default;
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};
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std::pair<ImplicitlyDefaultConstructible, ExplicitlyDefaultConstructible> test1() { return {}; } // expected-error 1 {{chosen constructor is explicit in copy-initialization}}
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std::pair<ExplicitlyDefaultConstructible, ImplicitlyDefaultConstructible> test2() { return {}; } // expected-error 1 {{chosen constructor is explicit in copy-initialization}}
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std::pair<ExplicitlyDefaultConstructible, ExplicitlyDefaultConstructible> test3() { return {}; } // expected-error 1 {{chosen constructor is explicit in copy-initialization}}
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std::pair<ImplicitlyDefaultConstructible, ImplicitlyDefaultConstructible> test4() { return {}; }
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int main(int, char**) {
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return 0;
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}
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