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// Copyright (C) 2019-2022 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/>.
// { dg-options "-std=gnu++2a" }
// { dg-do compile { target c++2a } }
#include <algorithm>
#include <array>
constexpr bool
test()
{
std::array<int, 12> ar3{{0, 1, 2, 3, 4, 5, 6, 6, 8, 9, 9, 11}};
std::array<int, 24> out0{{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};
const auto out55 = std::unique_copy(ar3.begin(), ar3.end(), out0.begin());
const auto out66 = std::unique_copy(ar3.begin(), ar3.end(), out55,
std::equal_to<int>());
return out55 == (out0.begin() + 10) && out0[7] == 8
&& out66 == (out55 + 10) ; // && out0[19] == 11;
}
static_assert(test());