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// { dg-options "-std=gnu++2a" }
// { dg-do compile { target c++2a } }
// Copyright (C) 2019-2023 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
#include <array>
#ifndef __cpp_lib_to_array
# error "Feature test macro for to_array is missing"
#elif __cpp_lib_to_array < 201907L
# error "Feature test macro for to_array has wrong value"
#endif
void test01()
{
const char x[6]{};
std::array<char, 6> y = std::to_array(x);
constexpr char x2[] = "foo";
constexpr std::array<char, 4> y2 = std::to_array(x2);
static_assert( std::equal(y2.begin(), y2.end(), x2) );
}
void
test02()
{
struct MoveOnly
{
constexpr MoveOnly(int i = 0) : i(i) { }
constexpr MoveOnly(MoveOnly&& m) : i(m.i + 100) { }
int i;
};
struct X {
MoveOnly m[3];
};
X x;
std::array<MoveOnly, 3> y = std::to_array(std::move(x).m);
constexpr std::array<MoveOnly, 3> y2 = std::to_array(X{{1, 2, 3}}.m);
static_assert( y2[0].i == 101 && y2[1].i == 102 && y2[2].i == 103 );
}
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