57 lines
2.2 KiB
C++
57 lines
2.2 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-no-concepts
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// UNSUPPORTED: libcpp-has-no-incomplete-ranges
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// template<class R>
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// concept common_range;
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#include <ranges>
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#include "test_iterators.h"
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#include "test_range.h"
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namespace stdr = std::ranges;
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static_assert(!stdr::common_range<test_range<cpp17_input_iterator> >);
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static_assert(!stdr::common_range<test_range<cpp17_input_iterator> const>);
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static_assert(!stdr::common_range<test_non_const_range<cpp17_input_iterator> >);
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static_assert(!stdr::common_range<test_non_const_range<cpp17_input_iterator> const>);
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static_assert(stdr::common_range<test_common_range<cpp17_input_iterator> >);
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static_assert(stdr::common_range<test_common_range<cpp17_input_iterator> const>);
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static_assert(stdr::common_range<test_non_const_common_range<cpp17_input_iterator> >);
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static_assert(!stdr::common_range<test_non_const_common_range<cpp17_input_iterator> const>);
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struct subtly_not_common {
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int* begin() const;
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int const* end() const;
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};
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static_assert(stdr::range<subtly_not_common> && !stdr::common_range<subtly_not_common>);
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static_assert(stdr::range<subtly_not_common const> && !stdr::common_range<subtly_not_common const>);
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struct common_range_non_const_only {
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int* begin() const;
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int* end();
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int const* end() const;
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};
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static_assert(stdr::range<common_range_non_const_only>&& stdr::common_range<common_range_non_const_only>);
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static_assert(stdr::range<common_range_non_const_only const> && !stdr::common_range<common_range_non_const_only const>);
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struct common_range_const_only {
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int* begin();
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int const* begin() const;
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int const* end() const;
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};
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static_assert(stdr::range<common_range_const_only> && !stdr::common_range<common_range_const_only>);
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static_assert(stdr::range<common_range_const_only const>&& stdr::common_range<common_range_const_only const>);
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