43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
// Copyright (C) 2020-2024 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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// { dg-do compile { target c++20 } }
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#include <functional>
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#include <numeric>
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constexpr bool
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test01()
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{
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int x[5] = {1,2,3,4,5};
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int y[5];
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std::adjacent_difference(x, x+5, y);
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return y[0] == 1 && y[1] == 1 && y[2] == 1 && y[3] == 1 && y[4] == 1;
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}
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static_assert(test01());
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constexpr bool
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test02()
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{
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int x[5] = {1,2,3,4,5};
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int y[5];
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std::adjacent_difference(x, x+5, y, std::multiplies{});
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return y[0] == 1 && y[1] == 2 && y[2] == 6 && y[3] == 12 && y[4] == 20;
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}
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static_assert(test02());
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