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// Copyright (C) 2021-2025 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 } }
// Verify P2367 changes.
#include <ranges>
namespace ranges = std::ranges;
namespace views = std::views;
void
test01()
{
extern int (&x)[5];
// Verify changes to views::single.
using ranges::single_view;
using std::same_as;
same_as<single_view<int*>> auto v1 = views::single(x);
same_as<single_view<int>> auto v2 = views::single((const int)5);
same_as<single_view<single_view<int>>> auto v3 = views::single(v2);
// Verify changes to views::take.
auto v4 = views::take(x, 0ull);
// Verify changes to views::drop.
auto v5 = views::drop(x, 0ull);
// Verify changes to views::lazy_split.
auto v6 = views::lazy_split(x, 5u);
auto v7 = views::split(x, 5u);
}
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