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
33 lines
928 B
C++
33 lines
928 B
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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// struct default_sentinel_t;
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// inline constexpr default_sentinel_t default_sentinel;
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#include <iterator>
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#include <concepts>
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#include <type_traits>
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#include "test_macros.h"
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int main(int, char**) {
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static_assert(std::is_empty_v<std::default_sentinel_t>);
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static_assert(std::semiregular<std::default_sentinel_t>);
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static_assert(std::same_as<decltype(std::default_sentinel), const std::default_sentinel_t>);
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std::default_sentinel_t s1;
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auto s2 = std::default_sentinel_t{};
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s2 = s1;
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return 0;
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}
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