58 lines
2.0 KiB
C++
58 lines
2.0 KiB
C++
// { dg-do compile { target c++14 } }
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// Copyright (C) 2015-2022 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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#include <experimental/array>
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#include <functional> // for std::ref and std::reference_wrapper
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struct MoveOnly
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{
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MoveOnly() = default;
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MoveOnly(MoveOnly&&) = default;
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MoveOnly& operator=(MoveOnly&&) = default;
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};
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void test01()
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{
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char x[42];
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std::array<char, 42> y = std::experimental::to_array(x);
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std::array<int, 5> z = std::experimental::make_array(1,2,3,4,5);
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std::array<long, 3> zz = std::experimental::make_array(1,2L, 3);
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std::array<MoveOnly, 1> zzz = std::experimental::make_array(MoveOnly{});
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int dummy;
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auto good = std::experimental::make_array<
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std::reference_wrapper<int>>(std::ref(dummy));
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constexpr char x2[42]{};
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constexpr std::array<char, 42> y2 = std::experimental::to_array(x2);
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constexpr std::array<int, 5> z2 =
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std::experimental::make_array(1,2,3,4,5);
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constexpr std::array<long, 3> zz2
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= std::experimental::make_array(1,2L, 3);
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constexpr std::array<MoveOnly, 1> zzz2 = std::experimental::make_array(MoveOnly{});
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}
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void test02()
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{
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// PR libstdc++/79195
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struct A {};
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struct B : A {};
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struct C : A {};
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auto arr = std::experimental::make_array<A>(B{}, C{});
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static_assert(std::is_same<decltype(arr), std::array<A, 2>>::value, "");
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}
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