forked from OSchip/llvm-project
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14, c++17
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// UNSUPPORTED: libcpp-no-concepts
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// UNSUPPORTED: libcpp-has-no-incomplete-ranges
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// constexpr V base() const& requires copy_constructible<V> { return base_; }
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// constexpr V base() && { return std::move(base_); }
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#include <ranges>
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#include "test_macros.h"
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#include "types.h"
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constexpr bool test() {
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std::ranges::drop_view<MoveOnlyView> dropView1;
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auto base1 = std::move(dropView1).base();
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assert(std::ranges::begin(base1) == globalBuff);
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// Note: we should *not* drop two elements here.
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std::ranges::drop_view<MoveOnlyView> dropView2(MoveOnlyView{4}, 2);
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auto base2 = std::move(dropView2).base();
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assert(std::ranges::begin(base2) == globalBuff + 4);
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std::ranges::drop_view<CopyableView> dropView3;
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auto base3 = dropView3.base();
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assert(std::ranges::begin(base3) == globalBuff);
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auto base4 = std::move(dropView3).base();
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assert(std::ranges::begin(base4) == globalBuff);
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return true;
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}
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int main(int, char**) {
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test();
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static_assert(test());
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return 0;
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}
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