d2baefae68
All supported compilers that support C++20 now support concepts. So, remove `_LIB_LIBCPP_HAS_NO_CONCEPTS` in favor of `_LIBCPP_STD_VER > 17`. Similarly in the tests, remove `// UNSUPPORTED: libcpp-no-concepts`. Differential Revision: https://reviews.llvm.org/D121528
42 lines
1.2 KiB
C++
42 lines
1.2 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-has-no-incomplete-ranges
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// sentinel() = default;
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// constexpr explicit sentinel(sentinel_t<Base> end);
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// constexpr sentinel(sentinel<!Const> s)
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// requires Const && convertible_to<sentinel_t<V>, sentinel_t<Base>>;
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#include <ranges>
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#include <cassert>
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#include "test_macros.h"
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#include "test_iterators.h"
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#include "../types.h"
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constexpr bool test() {
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int buffer[8] = {1, 2, 3, 4, 5, 6, 7, 8};
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{
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std::ranges::take_view<MoveOnlyView> tv(MoveOnlyView(buffer), 4);
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std::same_as<sentinel_wrapper<int*>> auto sw1 = tv.end().base();
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assert(base(sw1) == buffer + 8);
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std::same_as<sentinel_wrapper<int*>> auto sw2 = std::as_const(tv).end().base();
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assert(base(sw2) == buffer + 8);
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}
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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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