| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // UNSUPPORTED: c++03, c++11, c++14, c++17 |
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| 10 | |
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| 11 | // <ranges> |
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| 12 | |
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| 13 | // struct view_base { }; |
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| 14 | |
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| 15 | #include <ranges> |
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| 16 | #include <type_traits> |
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| 17 | |
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| 18 | static_assert(std::is_empty_v<std::ranges::view_base>); |
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| 19 | static_assert(std::is_trivially_copyable_v<std::ranges::view_base>); |
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| 20 | static_assert(std::is_trivially_default_constructible_v<std::ranges::view_base>); |
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| 21 | |
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| 22 | // Make sure we can inherit from it, as it's intended (that wouldn't be the |
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| 23 | // case if e.g. it was marked as final). |
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| 24 | struct View : std::ranges::view_base { }; |
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| 25 | |
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