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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// constexpr explicit common_view(V r);
#include <ranges>
#include <cassert>
#include <utility>
#include "test_iterators.h"
#include "types.h"
constexpr bool test() {
int buf[8] = {1, 2, 3, 4, 5, 6, 7, 8};
{
MoveOnlyView view{buf, buf + 8};
std::ranges::common_view<MoveOnlyView> common(std::move(view));
assert(std::move(common).base().begin_ == buf);
}
{
CopyableView const view{buf, buf + 8};
std::ranges::common_view<CopyableView> const common(view);
assert(common.base().begin_ == buf);
}
return true;
}
int main(int, char**) {
test();
static_assert(test());
// Can't compare common_iterator inside constexpr
{
int buf[8] = {1, 2, 3, 4, 5, 6, 7, 8};
MoveOnlyView view{buf, buf + 8};
std::ranges::common_view<MoveOnlyView> const common(std::move(view));
assert(common.begin() == buf);
}
return 0;
}
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