| //===----------------------------------------------------------------------===// |
| // |
| // 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 V base() const& requires copy_constructible<V> |
| // constexpr V base() && |
| |
| #include <ranges> |
| |
| #include "test_macros.h" |
| #include "types.h" |
| |
| constexpr bool test() { |
| { |
| std::ranges::transform_view<MoveOnlyView, PlusOne> transformView; |
| MoveOnlyView base = std::move(transformView).base(); |
| ASSERT_SAME_TYPE(MoveOnlyView, decltype(std::move(transformView).base())); |
| assert(std::ranges::begin(base) == globalBuff); |
| } |
| |
| { |
| std::ranges::transform_view<CopyableView, PlusOne> transformView; |
| CopyableView base1 = transformView.base(); |
| ASSERT_SAME_TYPE(CopyableView, decltype(transformView.base())); |
| assert(std::ranges::begin(base1) == globalBuff); |
| |
| CopyableView base2 = std::move(transformView).base(); |
| ASSERT_SAME_TYPE(CopyableView, decltype(std::move(transformView).base())); |
| assert(std::ranges::begin(base2) == globalBuff); |
| } |
| |
| { |
| const std::ranges::transform_view<CopyableView, PlusOne> transformView; |
| const CopyableView base1 = transformView.base(); |
| ASSERT_SAME_TYPE(CopyableView, decltype(transformView.base())); |
| assert(std::ranges::begin(base1) == globalBuff); |
| |
| const CopyableView base2 = std::move(transformView).base(); |
| ASSERT_SAME_TYPE(CopyableView, decltype(std::move(transformView).base())); |
| assert(std::ranges::begin(base2) == globalBuff); |
| } |
| |
| return true; |
| } |
| |
| int main(int, char**) { |
| test(); |
| static_assert(test()); |
| |
| return 0; |
| } |