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// Copyright (C) 2020-2025 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-do compile { target c++20 } }
#include <functional>
#include <numeric>
constexpr bool
test01()
{
int x[5] = {1,2,3,4,5};
auto sum = std::reduce(x, x+5);
return sum == 15;
}
static_assert(test01());
constexpr bool
test02()
{
int x[5] = {1,2,3,4,5};
auto sum = std::reduce(x, x+5, 0);
return sum == 15;
}
static_assert(test02());
constexpr bool
test03()
{
int x[5] = {1,2,3,4,5};
auto prod = std::reduce(x, x+5, 1, std::multiplies{});
return prod == 120;
}
static_assert(test03());
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